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rfc:rfc4439

Network Working Group C. DeSanti Request for Comments: 4439 V. Gaonkar Category: Standards Track K. McCloghrie

                                                         Cisco Systems
                                                                S. Gai
                                                               Retired
                                                            March 2006
              Fibre Channel Fabric Address Manager MIB

Status of This Memo

 This document specifies an Internet standards track protocol for the
 Internet community, and requests discussion and suggestions for
 improvements.  Please refer to the current edition of the "Internet
 Official Protocol Standards" (STD 1) for the standardization state
 and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

 Copyright (C) The Internet Society (2006).

Abstract

 This memo defines a portion of the Management Information Base (MIB)
 for use with network management protocols in the Internet community.
 In particular, it describes managed objects for information related
 to a Fibre Channel network's Fabric Address Manager.

DeSanti, et al. Standards Track [Page 1] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

Table of Contents

 1. Introduction ....................................................3
 2. The Internet-Standard Management Framework ......................3
 3. Short Overview of Fibre Channel .................................3
 4. Relationship to Other MIBs ......................................4
 5. MIB Overview ....................................................5
    5.1. Fibre Channel Management Instance ..........................5
    5.2. Switch Index ...............................................5
    5.3. Fabric Index ...............................................5
    5.4. The t11FamGroup Group ......................................6
    5.5. The t11FamDatabaseGroup Group ..............................6
    5.6. The t11FamAreaGroup Group ..................................6
    5.7. The t11FamCacheGroup Group .................................6
    5.8. The t11FamCommandGroup Group ...............................6
    5.9. The t11FamNotificationGroup Group ..........................6
    5.10. Use of RCF and BF .........................................6
 6. Definitions .....................................................8
    6.1. The T11-TC-MIB Module ......................................8
    6.2. The T11-FC-FABRIC-ADDR-MGR-MIB Module ......................9
 7. Acknowledgements ...............................................35
 8. Normative References ...........................................36
 9. Informative References .........................................36
 10. IANA Considerations ...........................................37
 11. Security Considerations .......................................37

DeSanti, et al. Standards Track [Page 2] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

1. Introduction

 This memo defines a portion of the Management Information Base (MIB)
 for use with network management protocols in the Internet community.
 In particular, it describes managed objects for information related
 to a Fibre Channel network's Fabric Address Manager.  Fabric Address
 Manager refers to the functionality of acquiring DomainID(s) as
 specified in [FC-SW-3], and managing Fibre Channel Identifiers as
 specified in [FC-FS].

2. The Internet-Standard Management Framework

 For a detailed overview of the documents that describe the current
 Internet-Standard Management Framework, please refer to section 7 of
 RFC 3410 [RFC3410].
 Managed objects are accessed via a virtual information store, termed
 the Management Information Base or MIB.  MIB objects are generally
 accessed through the Simple Network Management Protocol (SNMP).
 Objects in the MIB are defined using the mechanisms defined in the
 Structure of Management Information (SMI).  This memo specifies a MIB
 module that is compliant to the SMIv2, which is described in STD 58,
 RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
 [RFC2580].

3. Short Overview of Fibre Channel

 The Fibre Channel (FC) is logically a bidirectional point-to-point
 serial data channel, structured for high performance.  Fibre Channel
 provides a general transport vehicle for higher-level protocols such
 as Small Computer System Interface (SCSI) command sets, the High-
 Performance Parallel Interface (HIPPI) data framing, IP (Internet
 Protocol), IEEE 802.2, and others.
 Physically, Fibre Channel is an interconnection of multiple
 communication points, called N_Ports, interconnected either by a
 switching network, called a Fabric, or by a point-to-point link.  A
 Fibre Channel "node" consists of one or more N_Ports.  A Fabric may
 consist of multiple Interconnect Elements, some of which are
 switches.  An N_Port connects to the Fabric via a port on a switch
 called an F_Port.  When multiple FC nodes are connected to a single
 port on a switch via an "Arbitrated Loop" topology, the switch port
 is called an FL_Port, and the nodes' ports are called NL_Ports.  The
 term Nx_Port is used to refer to either an N_Port or an NL_Port.  The
 term Fx_Port is used to refer to either an F_Port or an FL_Port.  A
 switch port, which is interconnected to another switch port via an

DeSanti, et al. Standards Track [Page 3] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

 Inter-Switch Link (ISL), is called an E_Port.  A B_Port connects a
 bridge device with an E_Port on a switch; a B_Port provides a subset
 of E_Port functionality.
 Many Fibre Channel components, including the Fabric, each node, and
 most ports, have globally-unique names.  These globally-unique names
 are typically formatted as World Wide Names (WWNs).  More information
 on WWNs can be found in [FC-FS].  WWNs are expected to be persistent
 across agent and unit resets.
 Fibre Channel frames contain 24-bit address identifiers, which
 identify the frame's source and destination ports.  Each FC port has
 both an address identifier and a WWN.  When a Fabric is in use, the
 FC address identifiers are dynamically assigned by a switch.  Each
 octet of a 24-bit address represents a level in an address hierarchy,
 with a Domain_ID being the highest level of the hierarchy.
 Each switch in a Fabric is assigned one (or more) unique Domain_IDs
 using a two-step process.  First, one switch, called Principal
 Switch, is selected from the switches of a Fabric.  Then, the
 Principal Switch assigns Domain_IDs to the other switches of the
 Fabric.  Address assignment within a domain is performed by the
 switch to which that Domain_ID is granted.

4. Relationship to Other MIBs

 The first standardized MIB for Fibre Channel [RFC2837] was focused on
 Fibre Channel switches.  It is being replaced by the more generic
 Fibre Channel Management MIB [FC-MGMT], which defines basic
 information for Fibre Channel hosts and switches, including
 extensions to the standard IF-MIB [IF-MIB] for Fibre Channel
 interfaces.  [FC-MGMT] includes the specification of how the generic
 objects defined in [IF-MIB] apply to Fibre Channel interfaces.
 Note that an interface's ifIndex value must be unique within an SNMP
 context, irrespective of how many Fibre Channel management instances
 (see below) and how many Fibre Channel switches are instrumented
 within that SNMP context.
 This document defines the T11-FC-FABRIC-ADDR-MGR-MIB module, which
 extends beyond [FC-MGMT] to cover the functionality, in Fibre Channel
 switches, which is used to manage Fabric configuration, domains, and
 addresses within a domain.
 This document also contains a MIB module, T11-TC-MIB, to define
 textual conventions that might also be useful in other MIBs defined
 by T11.

DeSanti, et al. Standards Track [Page 4] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

5. MIB Overview

 This section explains the use of a Fibre Channel management instance,
 a Switch Index, and a Fabric Index.  It also describes the six MIB
 groups contained in the MIB.

5.1. Fibre Channel Management Instance

 A Fibre Channel management instance is defined in [FC-MGMT] as a
 separable managed instance of Fibre Channel functionality.  Fibre
 Channel functionality may be grouped into Fibre Channel management
 instances in whatever way is most convenient for the
 implementation(s).  For example, one such grouping accommodates a
 single SNMP agent having multiple AgentX sub-agents, with each sub-
 agent implementing a different Fibre Channel management instance.
 The object, fcmInstanceIndex, is IMPORTed from the FC-MGMT-MIB
 [FC-MGMT] as the index value to uniquely identify a Fibre Channel
 management instance.

5.2. Switch Index

 The FC-MGMT-MIB [FC-MGMT] defines the fcmSwitchTable as a table of
 information about Fibre Channel switches that are managed by Fibre
 Channel management instances.  Each Fibre Channel management instance
 can manage one or more Fibre Channel switches.  The Switch Index,
 fcmSwitchIndex, is IMPORTed from the FC-MGMT-MIB as the index value
 to uniquely identify a Fibre Channel switch amongst those (one or
 more) managed by the same Fibre Channel management instance.

5.3. Fabric Index

 The [FC-SW-3] standard for an interconnecting Fabric consisting of
 multiple Fabric Switch elements describes the operation of a single
 Fabric in a physical infrastructure.  The current [FC-SW-4] standard
 also supports the operation of multiple Virtual Fabrics operating
 within one (or more) physical infrastructures.  In such a scenario,
 each Fabric has, of course, its own management instrumentation.  In
 order to accommodate this scenario, this MIB module defines all
 Fabric-related information in tables that are INDEXed by an arbitrary
 integer, named a "Fabric Index".  In a Fabric that is conformant to
 [FC-SW-3], the value of this Fabric Index will always be 1.

DeSanti, et al. Standards Track [Page 5] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

 It is quite possible, and may even become likely, that (a port of) a
 Fibre Channel switch will be connected to multiple such Fabrics.
 Thus, in order to simplify a query concerning all the Fabrics to
 which a single switch is connected, fcmSwitchIndex will be listed
 before t11FamFabricIndex when they both appear in the same INDEX
 clause.

5.4. The t11FamGroup Group

 This group contains basic information about the Fabric Address
 Manager functionality within a switch, including its configuration
 parameters that are per-interface (i.e., specified for a particular
 Fibre Channel interface identified by an ifIndex value).

5.5. The t11FamDatabaseGroup Group

 This group contains information about which switches are assigned to
 which domains.

5.6. The t11FamAreaGroup Group

 This group contains information about which Port-IDs have been
 assigned within the areas of the local domain.

5.7. The t11FamCacheGroup Group

 This conditional mandatory group contains information about all the
 FC address identifier assignments that have been recently released.
 This cache is kept to support the concept of Preferred Domain_ID via
 a best-effort attempt for (short-term) re-assignment of the same FC
 address identifiers.

5.8. The t11FamCommandGroup Group

 This optional group contains objects used for initiating an operation
 on a Fabric.

5.9. The t11FamNotificationGroup Group

 This group contains notifications of significant events concerning
 the Fabric Address management functionality within a switch.

5.10. Use of RCF and BF

 Included in [FC-SW-3] is the specification of Reconfigure Fabric
 (RCF) and Build Fabric (BF), both of which are command codes of the
 Switch Fabric Internal Link Service (SW_ILS).  [FC-SW-3] includes the
 warning:

DeSanti, et al. Standards Track [Page 6] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

    NOTE 13 - Since the RCF causes a complete reconfiguration of the
    Fabric, and may cause addresses allocated to a Switch to change,
    this SW_ILS should be used with caution.  The BF SW_ILS allows the
    Fabric to attempt reconfiguration without loss of or change of
    address and therefore should be attempted before an RCF.  Examples
    of situations in which RCF may be appropriate include resolution
    of overlapped Domains, or the failure of a Fabric Reconfiguration
    initiated by a BF.
 Further, [FC-MI] specifies:
    A Fabric is prohibited from autonomously generating an RCF, but an
    outside administrative function may request a switch to generate
    an RCF.  Such an administrative function is outside the scope of
    this technical report.
 The T11-FC-FABRIC-ADDR-MGR-MIB defined in this document is consistent
 with both of the above quotes since it defines two objects,
 t11FamAutoReconfigure and t11FamRestart, which are defined with a
 MAX-ACCESS of read-write, and setting them to the appropriate value
 is a means by which "an outside administrative function may request a
 switch to generate an RCF" [FC-MI].
 Note, however, the MIB specifies in its compliance section that the
 minimum required level of support for these two objects is read-only.
 Further, for both t11FamAutoReconfigure and t11FamRestart, the MIB
 serves only as a request to generate; it does not represent the
 action of the RCF or BF.  That is, a successful SNMP SetRequest on
 these objects will cause an RCF (or BF) to be sent, but SNMP does
 not/cannot ensure the successful operation of the SW_ILS operation.

DeSanti, et al. Standards Track [Page 7] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

6. Definitions

6.1. The T11-TC-MIB Module

T11-TC-MIB DEFINITIONS ::= BEGIN

IMPORTS

  MODULE-IDENTITY, Unsigned32, mib-2
                                   FROM SNMPv2-SMI  -- [RFC2578]
  TEXTUAL-CONVENTION               FROM SNMPv2-TC;  -- [RFC2579]

t11TcMIB MODULE-IDENTITY

  LAST-UPDATED "200603020000Z"
  ORGANIZATION "T11"
  CONTACT-INFO
          "     Claudio DeSanti
                Cisco Systems, Inc.
                170 West Tasman Drive
                San Jose, CA 95134 USA
                Phone: +1 408 853-9172
                EMail: cds@cisco.com
                Keith McCloghrie
                Cisco Systems, Inc.
                170 West Tasman Drive
                San Jose, CA USA 95134
                Phone: +1 408-526-5260
                EMail: kzm@cisco.com"
  DESCRIPTION
         "This module defines textual conventions used in T11 MIBs.
         Copyright (C) The Internet Society (2006).  This version
         of this MIB module is part of RFC 4439;  see the RFC
         itself for full legal notices."
  REVISION    "200603020000Z"
  DESCRIPTION
         "Initial version of this MIB module, published as RFC 4439."
  ::= { mib-2 136 }

T11FabricIndex ::= TEXTUAL-CONVENTION

  DISPLAY-HINT  "d"
  STATUS    current
  DESCRIPTION
         "A Fabric Index that is used as a unique
         index value to identify a particular Fabric within
         one (or more) physical infrastructures.
         In an environment that is conformant to FC-SW-3, where

DeSanti, et al. Standards Track [Page 8] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

         there is always exactly one Fabric in a single physical
         infrastructure, the value of this Fabric Index will
         always be 1.
         However, the current standard, FC-SW-4, defines
         how multiple Fabrics, each with its own management
         instrumentation, could operate within one (or more)
         physical infrastructures.  When such multiple Fabrics
         are in use, this index value is used to uniquely
         identify a particular Fabric within a physical
         infrastructure.
         Note that the value of this textual convention has a
         range of (0..4095) so as to be consistent with FC-SW-4,
         which says that a 'VF_ID Bitmap' is 512 bytes long, with
         the high-order bit representing VF_ID zero, and the
         low-order bit representing 4095."
  REFERENCE   "Fibre Channel - Switch Fabric - 4 (FC-SW-4),
               ANSI INCITS 418-2006, section 6.1.27.2.4."
  SYNTAX      Unsigned32 (0..4095)

END

6.2. The T11-FC-FABRIC-ADDR-MGR-MIB Module

T11-FC-FABRIC-ADDR-MGR-MIB DEFINITIONS ::= BEGIN

– the Fibre Channel Fabric Address Manager MIB – – for management of the functionality, in Fibre Channel switches, – which is used to manage fabric configuration, domains, and – addresses within a domain. –

IMPORTS

  MODULE-IDENTITY, OBJECT-TYPE,
  NOTIFICATION-TYPE, Unsigned32,
  Counter32, Gauge32, mib-2          FROM SNMPv2-SMI   -- [RFC2578]
  MODULE-COMPLIANCE, OBJECT-GROUP,
  NOTIFICATION-GROUP                 FROM SNMPv2-CONF  -- [RFC2580]
  TEXTUAL-CONVENTION, TruthValue,
  RowStatus                          FROM SNMPv2-TC    -- [RFC2579]
  ifIndex                            FROM IF-MIB       -- [IF-MIB]
  fcmInstanceIndex, fcmSwitchIndex,
  FcDomainIdOrZero, FcNameIdOrZero   FROM FC-MGMT-MIB  -- [FC-MGMT]
  T11FabricIndex                     FROM T11-TC-MIB;

t11FcFabricAddrMgrMIB MODULE-IDENTITY

DeSanti, et al. Standards Track [Page 9] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  LAST-UPDATED "200603020000Z"
  ORGANIZATION "T11"
  CONTACT-INFO
          "     Claudio DeSanti
                Cisco Systems, Inc.
                170 West Tasman Drive
                San Jose, CA 95134 USA
                Phone: +1 408 853-9172
                EMail: cds@cisco.com
                Keith McCloghrie
                Cisco Systems, Inc.
                170 West Tasman Drive
                San Jose, CA USA 95134
                Phone: +1 408-526-5260
                EMail: kzm@cisco.com"
  DESCRIPTION
         "The MIB module for the Fabric Address management
         functionality defined by the Fibre Channel standards.  For
         the purposes of this MIB, Fabric Address Manager refers to
         the functionality of acquiring DomainID(s) as specified in
         FC-SW-3, and managing Fibre Channel Identifiers as specified
         in FC-FS.  An instance of 'Fabric Address Manager' software
         functionality executes in the Principal Switch, and in each
         other switch.
         After an agent reboot, the values of read-write objects
         defined in this MIB module are implementation-dependent.
         Copyright (C) The Internet Society (2006).  This version of
         this MIB module is part of RFC 4439;  see the RFC itself for
         full legal notices."
  REVISION    "200603020000Z"
  DESCRIPTION
         "Initial version of this MIB module, published as RFC 4439."
  ::= { mib-2 137 }

t11FamNotifications OBJECT IDENTIFIER ::= { t11FcFabricAddrMgrMIB 0 } t11FamMIBObjects OBJECT IDENTIFIER ::= { t11FcFabricAddrMgrMIB 1 } t11FamMIBConformance OBJECT IDENTIFIER ::= { t11FcFabricAddrMgrMIB 2 } t11FamConfiguration OBJECT IDENTIFIER ::= { t11FamMIBObjects 1 } t11FamInfo OBJECT IDENTIFIER ::= { t11FamMIBObjects 2 } t11FamNotifyControl OBJECT IDENTIFIER ::= { t11FamMIBObjects 3 }

– Textual Conventions

T11FamDomainPriority ::= TEXTUAL-CONVENTION

DeSanti, et al. Standards Track [Page 10] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  DISPLAY-HINT  "d"
  STATUS    current
  DESCRIPTION
         "Priority of a switch.
         The Principal Switch selection is influenced by the
         priority of the switches.
         Some values of importance are:
         1   : The highest priority in Principal Switch
               selection, which is used by the administrator
               to establish which switch becomes the Principal
               Switch.
         255 : Indicates that the switch is not capable of
               acting as a Principal Switch."
  REFERENCE   "Fibre Channel - Switch Fabric - 3 (FC-SW-3),
               ANSI INCITS 384-2004, section 6.1.5."
  SYNTAX    Unsigned32 (1..255)

T11FamDomainInterfaceRole ::= TEXTUAL-CONVENTION

  STATUS    current
  DESCRIPTION
         "The 'designated' state/role of the Inter-Switch Link (ISL)
         to which an interface connects, or (if not connected)
         the state of the interface:
         nonPrincipal (1)       - non-Principal ISL
         principalUpstream (2)  - Upstream Principal ISL
         principalDownsteam (3) - Downstream Principal ISL
         isolated (4)           - interface is isolated
         down (5)               - interface is down
         unknown (6)            - state/role is unknown
         "
  REFERENCE   "Fibre Channel - Switch Fabric - 3 (FC-SW-3),
               ANSI INCITS 384-2004, Sections 3.1, 5.7,
               and Figure 9."
  SYNTAX    INTEGER {
                     nonPrincipal (1),
                     principalUpstream (2),
                     principalDownsteam (3),
                     isolated (4),
                     down (5),
                     unknown (6)
            }

T11FamState ::= TEXTUAL-CONVENTION

  STATUS    current

DeSanti, et al. Standards Track [Page 11] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  DESCRIPTION
         "The state of the Fabric Address Manager, as described in
         Table 86 and Figure 15 of FC-SW-3.
  1. 'other' represents a switch that is in a state not

represented by any of the below enumerations.

  1. 'starting' represents a switch engaged in the process

represented by the first row in Table 86.

  1. 'unconfigured' represents a switch that requires

operator input before it can begin the process

           represented by the first row in Table 86.
  1. 'principalSwitchSelection' represents a switch engaged

in the process represented by the second row in

           Table 86, but not in states F0 or F1 of Figure 15.
  1. 'domainIdDistribution' represents a switch engaged in

the process represented by the third row in Table 86.

  1. 'buildFabricPhase' represents a switch that is in

state F0 of Figure 15.

  1. 'reconfigureFabricPhase' represents a switch that is

in state F1 of Figure 15.

  1. 'stable' represents a switch that has successfully

completed the process represented by the third row in

           Table 86 and has at least one E_Port.
  1. 'stableWithNoEports' represents a switch that has

successfully completed the process represented by the

           third row in Table 86 but has no E_Ports.
  1. 'noDomains' represents a switch that has completed

the process represented by the third row in Table 86

           but failed to obtain a Domain_ID.
  1. 'disabled' represents any situation in which the

corresponding instance of t11FamEnable has the value

           'false'.
  1. 'unknown' represents a switch that is confused about

what state it is in."

  REFERENCE   "Fibre Channel - Switch Fabric - 3 (FC-SW-3),
               ANSI INCITS 384-2004, Table 86 and Figure 15."
  SYNTAX    INTEGER {

DeSanti, et al. Standards Track [Page 12] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

                     other(1),
                     starting(2),
                     unconfigured(3),
                     principalSwitchSelection(4),
                     domainIdDistribution(5),
                     buildFabricPhase(6),
                     reconfigureFabricPhase(7),
                     stable(8),
                     stableWithNoEports(9),
                     noDomains(10),
                     disabled(11),
                     unknown(12)
            }

– – t11FamTable –

t11FamTable OBJECT-TYPE

  SYNTAX     SEQUENCE OF T11FamEntry
  MAX-ACCESS not-accessible
  STATUS     current
  DESCRIPTION
         "This table contains Fabric Address Manager related
         parameters that are able to be configured and monitored
         in a Fibre Channel switch.  For each of the switches
         (identified by fcmSwitchIndex) managed by a Fibre Channel
         management instance (identified by fcmInstanceIndex),
         there is any entry for each Fabric known to that switch.
         Entries are implicitly created/removed if and when
         additional Fabrics are created/deleted."
  ::= { t11FamConfiguration 1 }

t11FamEntry OBJECT-TYPE

  SYNTAX     T11FamEntry
  MAX-ACCESS not-accessible
  STATUS     current
  DESCRIPTION
         "An entry provides information on the local Fabric Address
         Manager functionality for a Fabric known to a
         particular switch."
  INDEX { fcmInstanceIndex, fcmSwitchIndex, t11FamFabricIndex }
  ::= { t11FamTable 1 }

T11FamEntry ::= SEQUENCE {

  t11FamFabricIndex                       T11FabricIndex,
  t11FamConfigDomainId                    FcDomainIdOrZero,

DeSanti, et al. Standards Track [Page 13] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  t11FamConfigDomainIdType                INTEGER,
  t11FamAutoReconfigure                   TruthValue,
  t11FamContiguousAllocation              TruthValue,
  t11FamPriority                          T11FamDomainPriority,
  t11FamPrincipalSwitchWwn                FcNameIdOrZero,
  t11FamLocalSwitchWwn                    FcNameIdOrZero,
  t11FamAssignedAreaIdList                OCTET STRING,
  t11FamGrantedFcIds                      Counter32,
  t11FamRecoveredFcIds                    Counter32,
  t11FamFreeFcIds                         Gauge32,
  t11FamAssignedFcIds                     Gauge32,
  t11FamAvailableFcIds                    Gauge32,
  t11FamRunningPriority                   T11FamDomainPriority,
  t11FamPrincSwRunningPriority            T11FamDomainPriority,
  t11FamState                             T11FamState,
  t11FamLocalPrincipalSwitchSlctns        Counter32,
  t11FamPrincipalSwitchSelections         Counter32,
  t11FamBuildFabrics                      Counter32,
  t11FamFabricReconfigures                Counter32,
  t11FamDomainId                          FcDomainIdOrZero,
  t11FamSticky                            TruthValue,
  t11FamRestart                           INTEGER,
  t11FamRcFabricNotifyEnable              TruthValue,
  t11FamEnable                            TruthValue,
  t11FamFabricName                        FcNameIdOrZero

}

t11FamFabricIndex OBJECT-TYPE

  SYNTAX      T11FabricIndex
  MAX-ACCESS  not-accessible
  STATUS      current
  DESCRIPTION
         "A unique index value that uniquely identifies a
         particular Fabric known to a particular switch.
         In a Fabric conformant to FC-SW-3, only a single Fabric
         can operate within a physical infrastructure, and thus,
         the value of this Fabric Index will always be 1.
         However, the current standard, FC-SW-4, defines
         how multiple Fabrics, each with its own management
         instrumentation, could operate within one (or more)
         physical infrastructures.  When such multiple Fabrics
         are in use, this index value is used to uniquely
         identify a particular Fabric within a physical
         infrastructure."
  ::= { t11FamEntry 1 }

DeSanti, et al. Standards Track [Page 14] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

t11FamConfigDomainId OBJECT-TYPE

  SYNTAX      FcDomainIdOrZero
  MAX-ACCESS  read-write
  STATUS      current
  DESCRIPTION
         "The configured Domain_ID of the particular switch on this
         Fabric, or zero if no Domain_ID has been configured.
         The meaning of this object depends on
         t11FamConfigDomainIdType object.
         If t11FamConfigDomainIdType is 'preferred', then the
         configured Domain_ID is called the 'preferred Domain_ID'.
         Valid values are between 0 and 239.  In a situation where
         this Domain_ID cannot be assigned, any other Domain_ID
         will be acceptable.  A value of zero means any Domain_ID.
         If t11FamConfigDomainIdType is 'insistent', then the
         configured Domain_ID is called the 'insistent Domain_ID' and
         valid values are between 1 and 239.  In a situation where
         this Domain_ID cannot be assigned, no other Domain_ID is
         acceptable.
         In both of the above cases, the switch sends an RDI (Request
         Domain_ID) to request this Domain_ID to the Principal
         Switch.  If no Domain_ID is able to be granted in the case
         of 'preferred', or if an 'insistent' Domain_ID is configured
         but not able to be granted, then it is an error condition.
         When this error occurs, the switch will continue as if it
         receives a SW_RJT with a reason/explanation of 'Unable to
         perform command request'/'Domain_ID not available'.  That
         is, its E_Ports on that Fabric will be isolated and the
         administrator informed via a 't11FamDomainIdNotAssigned'
         notification.
         If t11FamConfigDomainIdType is 'static', then the configured
         Domain_ID is called the 'static Domain_ID' and valid values
         are between 1 and 239.  In this situation, there is no
         Principal Switch in the Fabric and the Domain_ID is simply
         assigned by configuration, together with the Fabric_Name.
         A switch configured with a static Domain_ID, on receiving
         an EFP, BF, RCF, DIA, or RDI SW_ILS, shall reply with an
         SW_RJT having Reason Code Explanation 'E_Port is Isolated'
         and shall isolate the receiving E_Port.
         For the persistence of values across reboots, see the
         MODULE-IDENTITY's DESCRIPTION clause."
  REFERENCE   "Fibre Channel - Switch Fabric - 4 (FC-SW-4),
               ANSI INCITS 418-2006, section 7."

DeSanti, et al. Standards Track [Page 15] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  DEFVAL      { 0 }
  ::= { t11FamEntry 2 }

t11FamConfigDomainIdType OBJECT-TYPE

  SYNTAX      INTEGER {
                     preferred(1),
                     insistent(2),
                     static(3)
              }
  MAX-ACCESS  read-write
  STATUS      current
  DESCRIPTION
         "Type of configured Domain_ID contained in
         t11FamConfigDomainId.
         For the persistence of values across reboots, see the
         MODULE-IDENTITY's DESCRIPTION clause."
  DEFVAL  { preferred }
  ::= { t11FamEntry 3 }

t11FamAutoReconfigure OBJECT-TYPE

  SYNTAX      TruthValue
  MAX-ACCESS  read-write
  STATUS      current
  DESCRIPTION
         "This object determines how a particular switch
         responds to certain error conditions.
         The condition that might cause these errors is
         the merging of two disjoint Fabrics that have
         overlapping Domain_ID lists.
         If value of this object is 'true', the switch will
         send an RCF (ReConfigureFabric) to rebuild the
         Fabric.
         If 'false', the switch will isolate the E_Ports on
         which the errors happened.
         For the persistence of values across reboots, see the
         MODULE-IDENTITY's DESCRIPTION clause."
  REFERENCE   "Fibre Channel - Switch Fabric - 3 (FC-SW-3),
                 December 2003, sections 6.1.12 & 7.3.
              Fibre Channel - Methodologies for Interconnects
                 (FC-MI), INCITS TR-30-2002, table 14, note g."
  DEFVAL  { false }
  ::= { t11FamEntry 4 }

DeSanti, et al. Standards Track [Page 16] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

t11FamContiguousAllocation OBJECT-TYPE

  SYNTAX      TruthValue
  MAX-ACCESS  read-write
  STATUS      current
  DESCRIPTION
         "Determines how a particular switch behaves when elected as
         the Principal Switch.
         If true, the switch will only accept RDIs with a contiguous
         allocation; specifically, it will reject RDIs with
         non-contiguous Domain_IDs, and if an RDI for a contiguous
         Domain_ID is not able to be fulfilled, it will try to
         replace all the Domain_IDs in the list with contiguous
         Domain_IDs, and if that fails, the RDI will be rejected.
         If false, then the switch acts normally in granting
         the Domain_IDs even if they are not contiguous.
         For the persistence of values across reboots, see the
         MODULE-IDENTITY's DESCRIPTION clause."
  ::= { t11FamEntry 5 }

t11FamPriority OBJECT-TYPE

  SYNTAX     T11FamDomainPriority
  MAX-ACCESS read-write
  STATUS     current
  DESCRIPTION
         "The initial or configured priority of a particular switch
         to be used in Principal Switch selection process.
         For the persistence of values across reboots, see the
         MODULE-IDENTITY's DESCRIPTION clause."
  ::= { t11FamEntry 6 }

t11FamPrincipalSwitchWwn OBJECT-TYPE

  SYNTAX      FcNameIdOrZero
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
         "The WWN of the Principal Switch on this Fabric,
         or zero-length string if the identity of the principal
         switch is unknown."
  DEFVAL  { ''H }
  ::= { t11FamEntry 7 }

t11FamLocalSwitchWwn OBJECT-TYPE

  SYNTAX      FcNameIdOrZero
  MAX-ACCESS  read-only

DeSanti, et al. Standards Track [Page 17] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  STATUS      current
  DESCRIPTION
         "The WWN of the particular switch on this Fabric."
  ::= { t11FamEntry 8 }

t11FamAssignedAreaIdList OBJECT-TYPE

  SYNTAX     OCTET STRING (SIZE(0..256))
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The list of (zero or more) Area_IDs that have been
         assigned by a particular switch in this Fabric, formatted
         as an array of octets in ascending order.
         Each octet represents one Area_ID.  So, the list containing
         Area_IDs 23, 45, 235, and 56 would be formatted as the
         4-octet string x'172d38eb'.
         A particular area's Area_ID is used as the index into the
         t11FamAreaTable to get the statistics on that area."
  ::= { t11FamEntry 9 }

t11FamGrantedFcIds OBJECT-TYPE

  SYNTAX     Counter32
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The total number of Fibre Channel Address Identifiers
         granted (for local use, i.e., with a particular switch's
         Domain_ID) by the Fabric Address Manager on that switch.
         This counter has no discontinuities other than those
         that all Counter32s have when sysUpTime=0."
  ::= { t11FamEntry 10 }

t11FamRecoveredFcIds OBJECT-TYPE

  SYNTAX     Counter32
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The total number of Fibre Channel Address Identifiers that
         have been recovered by the Fabric Address Manager on a
         particular switch since the switch has been initialized.
         A recovered Fibre Channel Address Identifier is one that is
         explicitly returned after previously being used.
         This counter has no discontinuities other than those
         that all Counter32s have when sysUpTime=0."

DeSanti, et al. Standards Track [Page 18] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  ::= { t11FamEntry 11 }

t11FamFreeFcIds OBJECT-TYPE

  SYNTAX     Gauge32
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The number of Fibre Channel Address Identifiers that are
         currently unassigned on this Fabric and could be available
         for assignment either immediately or at some later time.
         The sum of the instances of FreeFcIds and AssignedFcIds
         corresponding to a particular Fabric is the total number of
         Fibre Channel Address Identifiers that the local Fabric
         Address Management is capable of assigning on that Fabric."
  ::= { t11FamEntry 12 }

t11FamAssignedFcIds OBJECT-TYPE

  SYNTAX     Gauge32
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The number of Fibre Channel Address Identifiers that are
         currently assigned on this Fabric.
         The sum of the instances of FreeFcIds and AssignedFcIds
         corresponding to a particular Fabric is the total number of
         Fibre Channel Address Identifiers that the local Fabric
         Address Management is capable of assigning on that Fabric."
  ::= { t11FamEntry 13 }

t11FamAvailableFcIds OBJECT-TYPE

  SYNTAX     Gauge32
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The number of Fibre Channel Address Identifiers that are
         unassigned and currently available for immediate assignment
         on the Fabric, e.g., with the 'Clean Address' bit set to 1."
  REFERENCE
      "Fibre Channel - Framing and Signaling (FC-FS),
       ANSI INCITS 373-2003, section 15.6.2.4.2."
  ::= { t11FamEntry 14 }

t11FamRunningPriority OBJECT-TYPE

  SYNTAX     T11FamDomainPriority
  MAX-ACCESS read-only
  STATUS      current

DeSanti, et al. Standards Track [Page 19] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  DESCRIPTION
         "The running priority of a particular switch on this Fabric.
         This value is initialized to the value of t11FamPriority,
         and subsequently altered as specified by the procedures
         defined in FC-SW-3."
  ::= { t11FamEntry 15 }

t11FamPrincSwRunningPriority OBJECT-TYPE

  SYNTAX     T11FamDomainPriority
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The running priority of the Principal Switch on this
         Fabric."
  ::= { t11FamEntry 16 }

t11FamState OBJECT-TYPE

  SYNTAX     T11FamState
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The state of the Fabric Address Manager on a particular
         switch on this Fabric."
  ::= { t11FamEntry 17 }

t11FamLocalPrincipalSwitchSlctns OBJECT-TYPE

  SYNTAX     Counter32
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The number of times a particular switch became the
         Principal Switch on this Fabric.
         This counter has no discontinuities other than those
         that all Counter32s have when sysUpTime=0."
  ::= { t11FamEntry 18 }

t11FamPrincipalSwitchSelections OBJECT-TYPE

  SYNTAX     Counter32
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The number of Principal Switch selections on this Fabric.
         This counter has no discontinuities other than those
         that all Counter32s have when sysUpTime=0."
  ::= { t11FamEntry 19 }

DeSanti, et al. Standards Track [Page 20] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

t11FamBuildFabrics OBJECT-TYPE

  SYNTAX     Counter32
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The number of non-disruptive fabric reconfigurations (BFs)
         that have occurred on this Fabric.
         This counter has no discontinuities other than those
         that all Counter32s have when sysUpTime=0."
  ::= { t11FamEntry 20 }

t11FamFabricReconfigures OBJECT-TYPE

  SYNTAX     Counter32
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The number of disruptive fabric reconfigurations (RCFs)
         that have occurred on this Fabric.
         This counter has no discontinuities other than those
         that all Counter32s have when sysUpTime=0."
  ::= { t11FamEntry 21 }

t11FamDomainId OBJECT-TYPE

  SYNTAX      FcDomainIdOrZero
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
         "The Domain_ID of a particular switch on this Fabric or
         zero if no Domain_ID has been assigned."
  ::= { t11FamEntry 22 }

t11FamSticky OBJECT-TYPE

  SYNTAX      TruthValue
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
         "An indication of whether a particular switch is supporting
         the concept of Preferred Domain_IDs via a best-effort
         attempt to re-assign the same Fibre Channel Address
         Identifier value to a port on the next occasion when a port
         requests an assignment on this Fabric.
         If the value of this object is 'true', then the switch is
         maintaining rows in the t11FamFcIdCacheTable for this
         Fabric."
  ::= { t11FamEntry 23 }

DeSanti, et al. Standards Track [Page 21] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

t11FamRestart OBJECT-TYPE

  SYNTAX     INTEGER {
                     nonDisruptive(1),
                     disruptive(2),
                     noOp(3)
             }
  MAX-ACCESS  read-write
  STATUS      current
  DESCRIPTION
         "This object tells the Fabric Address Manager to
         request a Fabric reconfiguration.
         If this object is set to 'disruptive', then an RCF
         (ReConfigure Fabric) is generated in the Fabric
         in order for the Fabric to recover from the errors.
         If this object is set to 'nonDisruptive', then a
         BF (Build Fabric) is generated in the Fabric.
         No action is taken if this object is set to 'noOp'.
         The value of the object when read is always 'noOp'.
         For the persistence of values across reboots, see the
         MODULE-IDENTITY's DESCRIPTION clause."
  REFERENCE   "Fibre Channel - Switch Fabric - 3 (FC-SW-3),
               ANSI INCITS 384-2004, section 7.3."
  ::= { t11FamEntry 24 }

t11FamRcFabricNotifyEnable OBJECT-TYPE

  SYNTAX     TruthValue
  MAX-ACCESS read-write
  STATUS     current
  DESCRIPTION
         "An indication of whether or not a particular switch
         should issue a t11FamFabricChangeNotify notification on
         sending or receiving ReConfigureFabric (RCF) on a Fabric.
         If the value of the object is 'true', then the
         notification is generated.  If the value is 'false',
         notification is not generated.
         If an implementation requires all Fabrics to have the
         same value, then setting one instance of this object
         to a new object will result in all corresponding
         instances being set to that same new value.
         For the persistence of values across reboots, see the
         MODULE-IDENTITY's DESCRIPTION clause."

DeSanti, et al. Standards Track [Page 22] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  DEFVAL { false }
  ::= { t11FamEntry 25 }

t11FamEnable OBJECT-TYPE

  SYNTAX      TruthValue
  MAX-ACCESS  read-write
  STATUS      current
  DESCRIPTION
         "Enables the Fabric Address Manager on this switch
         on this Fabric.
         If enabled on a Fabric, the switch will participate in
         Principal Switch selection, and Domain_IDs are assigned
         dynamically.  If disabled, the switch will not participate
         in Principal Switch selection, and Domain_IDs are
         assigned statically.  Thus, the corresponding value of
         t11FamConfigDomainIdType needs to be 'static'.
         For the persistence of values across reboots, see the
         MODULE-IDENTITY's DESCRIPTION clause."
REFERENCE   "Fibre Channel - Switch Fabric - 4 (FC-SW-4),
             ANSI INCITS 418-2006, sections 7.1 and 7.3."
DEFVAL  { true }
::= { t11FamEntry 26 }

t11FamFabricName OBJECT-TYPE

  SYNTAX      FcNameIdOrZero
  MAX-ACCESS  read-write
  STATUS      current
  DESCRIPTION
         "The WWN that is configured on this switch to be used as
         the name of this Fabric when the value of t11FamEnable is
         'false'.
         If the value of t11FamEnable is 'true', this value is not
         used.
         Fibre Channel requires that:
             a) all switches in an operational Fabric be
                configured with the same Fabric name; and
             b) each Fabric have a unique Fabric name.
         If either of these is violated, either by switches within a
         single Fabric being configured with different Fabric names,
         or by multiple Fabrics that share management applications
         or interact in other ways having the same Fabric name,
         then the behavior of the switches and associated management
         functions is not specified by Fibre Channel or Internet
         standards.

DeSanti, et al. Standards Track [Page 23] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

         For the persistence of values across reboots, see the
         MODULE-IDENTITY's DESCRIPTION clause."
  REFERENCE   "Fibre Channel - Switch Fabric - 4 (FC-SW-4),
               ANSI INCITS 418-2006, section 7.1."
  ::= { t11FamEntry 27 }

– – t11FamIfTable - Interface configuration –

t11FamIfTable OBJECT-TYPE

  SYNTAX     SEQUENCE OF T11FamIfEntry
  MAX-ACCESS not-accessible
  STATUS     current
  DESCRIPTION
         "This table contains those Fabric Address Manager parameters
         and status values that are per-interface (identified
         by an ifIndex value), per-Fabric (identified by a
         t11FamFabricIndex value), and per-switch (identified by
         values of fcmInstanceIndex and fcmSwitchIndex).
         An entry in this table is automatically created when
         an E_Port becomes non-isolated on a particular Fabric.
         An entry is deleted automatically from this table if:
         a) the corresponding interface is no longer an E_Port (e.g.,
            a G_Port that is dynamically determined to be an F_Port),
            and all configuration parameter(s) have default values; or
         b) the interface identified by ifIndex no longer exists
            (e.g., because a line-card is physically removed); or
         c) the row in the t11FamTable corresponding the fabric
            identified by t11FamFabricID no longer exists.
         Creating an entry in this table via t11FamIfRowStatus
         provides the means to specify non-default parameter value(s)
         for an interface at a time when the relevant row in this
         table does not exist, i.e., because the interface is either
         down or it is not an E_Port."
  ::= { t11FamConfiguration 2 }

t11FamIfEntry OBJECT-TYPE

  SYNTAX     T11FamIfEntry
  MAX-ACCESS not-accessible
  STATUS     current
  DESCRIPTION
         "An entry containing information on the interface
         configuration on the Fabric identified by

DeSanti, et al. Standards Track [Page 24] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

         t11FamFabricIndex."
  INDEX { fcmInstanceIndex, fcmSwitchIndex,
          t11FamFabricIndex, ifIndex}
  ::= { t11FamIfTable 1 }

T11FamIfEntry ::= SEQUENCE {

  t11FamIfRcfReject    TruthValue,
  t11FamIfRole         T11FamDomainInterfaceRole,
  t11FamIfRowStatus    RowStatus

}

t11FamIfRcfReject OBJECT-TYPE

  SYNTAX     TruthValue
  MAX-ACCESS read-create
  STATUS      current
  DESCRIPTION
         "This object determines if the incoming ReConfigure
         Fabric (RCF) messages on this interface on this
         Fabric is accepted or not.  If this object is 'true', then
         the incoming RCF is rejected.  If 'false', incoming RCF is
         accepted.
         Note that this object does not apply to the outgoing
         RCFs generated by this interface.
         Implementations that support write-access to this object
         can do so under whatever conditions they choose."
  DEFVAL {false}
  ::= { t11FamIfEntry 1 }

t11FamIfRole OBJECT-TYPE

  SYNTAX     T11FamDomainInterfaceRole
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION
         "The role of this interface."
  ::= { t11FamIfEntry 2 }

t11FamIfRowStatus OBJECT-TYPE

  SYNTAX     RowStatus
  MAX-ACCESS read-create
  STATUS      current
  DESCRIPTION
         "The status of this row."
  ::= { t11FamIfEntry 3 }

DeSanti, et al. Standards Track [Page 25] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

– t11FamAreaTable –

t11FamAreaTable OBJECT-TYPE

  SYNTAX     SEQUENCE OF T11FamAreaEntry
  MAX-ACCESS not-accessible
  STATUS     current
  DESCRIPTION
         "This table contains area assignments per-Fabric by a
         switch's Fabric Address Manager.  Each octet in
         t11FamAssignedAreaList is able to be used to index into
         this table to find information on each area."
  REFERENCE   "Fibre Channel - Switch Fabric - 3 (FC-SW-3),
               ANSI INCITS 384-2004, section 4.8."
  ::= { t11FamInfo 1 }

t11FamAreaEntry OBJECT-TYPE

  SYNTAX     T11FamAreaEntry
  MAX-ACCESS not-accessible
  STATUS     current
  DESCRIPTION
         "An entry gives information on the Area_ID and all
         Port_IDs that have been assigned within an area for
         the Fabric identified by t11FamFabricIndex, by the
         Fabric Address Manager in the switch identified by
         fcmInstanceIndex and fcmSwitchIndex."
  INDEX { fcmInstanceIndex, fcmSwitchIndex,
          t11FamFabricIndex, t11FamAreaAreaId}
  ::= { t11FamAreaTable 1 }

T11FamAreaEntry ::= SEQUENCE {

  t11FamAreaAreaId                Unsigned32,
  t11FamAreaAssignedPortIdList    OCTET STRING

}

t11FamAreaAreaId OBJECT-TYPE

  SYNTAX     Unsigned32 (0..255)
  MAX-ACCESS not-accessible
  STATUS      current
  DESCRIPTION
         "The Area_ID of this area."
  ::= { t11FamAreaEntry 1 }

t11FamAreaAssignedPortIdList OBJECT-TYPE

  SYNTAX     OCTET STRING (SIZE(0..256))
  MAX-ACCESS read-only
  STATUS      current
  DESCRIPTION

DeSanti, et al. Standards Track [Page 26] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

         "The list of Port_IDs which have been assigned in
         this area and Fabric, formatted as an array of
         octets in ascending order.  There could be zero or more
         Port_IDs assigned on this area and Fabric.
         Each octet represents one Port_ID.  So, the list containing
         the Port_IDs 23, 45, 235, and 56 would be formatted as the
         4-octet string x'172d38eb'."
  ::= { t11FamAreaEntry 2 }

– – t11FamDatabaseTable –

t11FamDatabaseTable OBJECT-TYPE

  SYNTAX     SEQUENCE OF T11FamDatabaseEntry
  MAX-ACCESS not-accessible
  STATUS     current
  DESCRIPTION
         "This table contains all information known by
         a switch about all the domains that have been
         assigned in each Fabric."
  REFERENCE   "Fibre Channel - Switch Fabric - 3 (FC-SW-3),
               ANSI INCITS 384-2004, section 4.8."
  ::= { t11FamInfo 2 }

t11FamDatabaseEntry OBJECT-TYPE

  SYNTAX     T11FamDatabaseEntry
  MAX-ACCESS not-accessible
  STATUS     current
  DESCRIPTION
         "An entry (conceptual row) in the t11FamDatabaseTable
         containing information about one Domain_ID in the
         Fabric identified by t11FamFabricIndex, and known by
         the switch identified by t11FamFabricIndex and
         t11FamDatabaseDomainId."
  INDEX { fcmInstanceIndex, fcmSwitchIndex,
          t11FamFabricIndex , t11FamDatabaseDomainId}
  ::= { t11FamDatabaseTable 1 }

T11FamDatabaseEntry ::= SEQUENCE {

  t11FamDatabaseDomainId              FcDomainIdOrZero,
  t11FamDatabaseSwitchWwn             FcNameIdOrZero

}

t11FamDatabaseDomainId OBJECT-TYPE

  SYNTAX     FcDomainIdOrZero (1..239)

DeSanti, et al. Standards Track [Page 27] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  MAX-ACCESS not-accessible
  STATUS      current
  DESCRIPTION
         "The Domain_ID for which this row contains information.
         The value must be non-zero."
  ::= { t11FamDatabaseEntry 1 }

t11FamDatabaseSwitchWwn OBJECT-TYPE

  SYNTAX      FcNameIdOrZero
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
          "The node name (WWN) of the switch to which the
          corresponding value of t11FamDatabaseDomainId is currently
          assigned for the particular Fabric."
  ::= { t11FamDatabaseEntry 2 }

– – Fibre Channel Address Identifier cache information – – The cached information allows the Fabric Address Manager to – implement the concept of a Preferred Domain_ID, whereby after a port – releases a Fibre Channel Address Identifier value, a switch makes an – attempt to re-assign the same Fibre Channel Address Identifier value – on the next occasion when that port requests an assignment. –

t11FamMaxFcIdCacheSize OBJECT-TYPE

  SYNTAX      Unsigned32 (0..4294967295)
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
         "The maximum number of Fibre Channel Address Identifiers
         that are able to be cached in the t11FamFcIdCacheTable.
         If the number is unknown, the value of this object is
         zero."
  ::= { t11FamInfo 3 }

– – t11FamFcIdCacheTable –

t11FamFcIdCacheTable OBJECT-TYPE

  SYNTAX     SEQUENCE OF T11FamFcIdCacheEntry
  MAX-ACCESS not-accessible
  STATUS     current

DeSanti, et al. Standards Track [Page 28] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  DESCRIPTION
         "This table contains all the Fibre Channel Address
         Identifiers that have recently been released by the
         Fabric Address Manager in a switch.  So, it lists
         all the Fibre Channel Address Identifiers that have valid
         WWN-to-Fibre Channel Address Identifier mappings and are
         currently not assigned to any ports.  These Fibre Channel
         Address Identifiers were assigned to ports but have since
         been released.  These cached Fibre Channel Address
         Identifiers contain only Area_ID and Port_ID information.
         This cache is kept to provide best-effort re-assignment of
         same Fibre Channel Address Identifiers; i.e., when an
         Nx_Port asks for a Fibre Channel Address Identifier, soon
         after releasing one, the same value is re-assigned, if
         possible."
  ::= { t11FamInfo 4 }

t11FamFcIdCacheEntry OBJECT-TYPE

  SYNTAX     T11FamFcIdCacheEntry
  MAX-ACCESS not-accessible
  STATUS     current
  DESCRIPTION
         "An entry (conceptual row) in the t11FamFcIdCacheTable
         containing information about one Fibre Channel Address
         Identifier that was released from a WWN, corresponding to a
         range of one or more ports connected to the switch
         (identified by t11FamFabricIndex and t11FamFcIdCacheWwn) in
         the Fabric (identified by t11FamFabricIndex).  An entry is
         created when a Fibre Channel Address Identifier is released
         by the last port in the range.  The oldest entry is deleted
         if the number of rows in this table reaches
         t11FamMaxFcIdCacheSize, and its space is required for a new
         entry.  An entry is also deleted when its Fibre Channel
         Address Identifier is assigned to a port."
  INDEX { fcmInstanceIndex, fcmSwitchIndex,
          t11FamFabricIndex, t11FamFcIdCacheWwn}
  ::= { t11FamFcIdCacheTable 1 }

T11FamFcIdCacheEntry ::= SEQUENCE {

  t11FamFcIdCacheWwn                  FcNameIdOrZero,
  t11FamFcIdCacheAreaIdPortId         OCTET STRING,
  t11FamFcIdCachePortIds              Unsigned32

}

t11FamFcIdCacheWwn OBJECT-TYPE

  SYNTAX     FcNameIdOrZero
  MAX-ACCESS not-accessible
  STATUS      current

DeSanti, et al. Standards Track [Page 29] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

  DESCRIPTION
         "The N_Port_Name (WWN) of the port associated with this
         entry."
  ::= { t11FamFcIdCacheEntry 1 }

t11FamFcIdCacheAreaIdPortId OBJECT-TYPE

  SYNTAX     OCTET STRING (SIZE (2))
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
         "The combination of this object and t11FamFcIdCachePortIds
         represent one range of Fibre Channel Address Identifiers,
         which were assigned and later released.  This object
         contains the Area_ID and Port_ID of the first Fibre
         Channel Address Identifier in the range.
         Note that this object is only 2 bytes."
  ::= { t11FamFcIdCacheEntry 2 }

t11FamFcIdCachePortIds OBJECT-TYPE

  SYNTAX     Unsigned32 (0..65535)
  MAX-ACCESS  read-only
  STATUS      current
  DESCRIPTION
         "The combination of t11FamFcIdCacheAreaIdPortId and this
         object represent one range of Fibre Channel Address
         Identifiers, which were assigned and later released.  This
         object contains the number of (consecutive) Fibre Channel
         Address Identifiers in the range."
  ::= { t11FamFcIdCacheEntry 3 }

– Objects for use in notifications

t11FamNotifyFabricIndex OBJECT-TYPE

  SYNTAX      T11FabricIndex
  MAX-ACCESS  accessible-for-notify
  STATUS      current
  DESCRIPTION
         "A unique index value that identifies a particular
         Fabric for which a particular notification is generated.
         In a Fabric conformant to SW-3, only a single Fabric
         can operate within a physical infrastructure, and thus,
         the value of this Fabric Index will always be 1.
         However, the current standard, FC-SW-4, defines
         how multiple Fabrics, each with its own management

DeSanti, et al. Standards Track [Page 30] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

         instrumentation, could operate within one (or more)
         physical infrastructures.  In order to accommodate this
         scenario, this index value is used to uniquely identify a
         particular Fabric within a physical infrastructure."
  ::= { t11FamNotifyControl 1 }

– Notifications

t11FamDomainIdNotAssignedNotify NOTIFICATION-TYPE

  OBJECTS     { t11FamLocalSwitchWwn, t11FamNotifyFabricIndex }
  STATUS      current
  DESCRIPTION
         "This notification indicates that a Domain_ID has not
         been configured or assigned for a particular Fabric,
         identified by t11FamNotifyFabricIndex, on a particular
         switch identified by t11FamLocalSwitchWwn.  This could
         happen under the following conditions, and results in the
         switch isolating E_Ports on the Fabric:
  1. if the switch's request for a configured static

Domain_ID is rejected or no other Domain_ID is

            assigned, then the E_Ports are isolated."
  ::= { t11FamNotifications 1 }

t11FamNewPrincipalSwitchNotify NOTIFICATION-TYPE

  OBJECTS     { t11FamLocalSwitchWwn, t11FamNotifyFabricIndex }
  STATUS      current
  DESCRIPTION
         "This notification indicates that a particular switch,
         identified by t11FamLocalSwitchWwn, has become the new
         Principal Switch on the Fabric identified by
         t11FamNotifyFabricIndex.
         This notification is sent soon after its election as
         the new Principal Switch, i.e., upon expiration of a
         Principal Switch selection timer that is equal to
         twice the Fabric Stability Timeout value (F_S_TOV)."
  ::= { t11FamNotifications 2 }

t11FamFabricChangeNotify NOTIFICATION-TYPE

  OBJECTS     { t11FamLocalSwitchWwn, t11FamNotifyFabricIndex }
  STATUS      current
  DESCRIPTION
         "This notification is sent whenever a particular switch,
         identified by t11FamLocalSwitchWwn, sends or
         receives a Build Fabric (BF) or a ReConfigure Fabric
         (RCF) message on the Fabric identified by

DeSanti, et al. Standards Track [Page 31] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

         t11FamNotifyFabricIndex.
         This notification is not sent if a
         't11FamNewPrincipalSwitchNotify' notification is sent
         for the same event."
  ::= { t11FamNotifications 3 }

– – Conformance –

t11FamMIBCompliances OBJECT IDENTIFIER ::= { t11FamMIBConformance 1 } t11FamMIBGroups OBJECT IDENTIFIER ::= { t11FamMIBConformance 2 }

t11FamMIBCompliance MODULE-COMPLIANCE

  STATUS   current
  DESCRIPTION
         "The compliance statement for Fibre Channel switches
         that implement Fabric Address Manager functionality."
  MODULE
  MANDATORY-GROUPS { t11FamGroup,
                     t11FamDatabaseGroup,
                     t11FamAreaGroup,
                     t11FamNotificationGroup
                   }
    OBJECT t11FamConfigDomainId
    MIN-ACCESS read-only
    DESCRIPTION
           "Write access is not required."
    OBJECT t11FamConfigDomainIdType
    MIN-ACCESS read-only
    DESCRIPTION
           "Write access is not required."
    OBJECT t11FamAutoReconfigure
    MIN-ACCESS read-only
    DESCRIPTION
           "Write access is not required."
    OBJECT t11FamContiguousAllocation
    MIN-ACCESS read-only
    DESCRIPTION
           "Write access is not required."
    OBJECT t11FamPriority

DeSanti, et al. Standards Track [Page 32] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

    MIN-ACCESS read-only
    DESCRIPTION
           "Write access is not required."
    OBJECT t11FamIfRcfReject
    MIN-ACCESS read-only
    DESCRIPTION
           "Write access is not required."
    OBJECT t11FamIfRowStatus
    MIN-ACCESS read-only
    DESCRIPTION
           "Write access is not required."
    OBJECT t11FamRcFabricNotifyEnable
    MIN-ACCESS read-only
    DESCRIPTION
           "Write access is not required."
    GROUP  t11FamCacheGroup
    DESCRIPTION
           "This group is mandatory only for switches that
           support the concept of Preferred Domain_ID via a best-
           effort attempt for (short-term) re-assignment of the
           same FC address identifiers."
    GROUP  t11FamCommandGroup
    DESCRIPTION
           "This group is optional."
  ::= { t11FamMIBCompliances 1 }

– Units of Conformance

t11FamGroup OBJECT-GROUP

  OBJECTS  { t11FamConfigDomainId,
             t11FamConfigDomainIdType,
             t11FamAutoReconfigure,
             t11FamContiguousAllocation,
             t11FamPriority,
             t11FamPrincipalSwitchWwn,
             t11FamLocalSwitchWwn,
             t11FamAssignedAreaIdList,
             t11FamGrantedFcIds,
             t11FamRecoveredFcIds,
             t11FamFreeFcIds,
             t11FamAssignedFcIds,

DeSanti, et al. Standards Track [Page 33] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

             t11FamAvailableFcIds,
             t11FamRunningPriority,
             t11FamPrincSwRunningPriority,
             t11FamState,
             t11FamLocalPrincipalSwitchSlctns,
             t11FamPrincipalSwitchSelections,
             t11FamBuildFabrics,
             t11FamFabricReconfigures,
             t11FamDomainId,
             t11FamSticky,
             t11FamRestart,
             t11FamRcFabricNotifyEnable,
             t11FamEnable,
             t11FamFabricName,
             t11FamIfRcfReject,
             t11FamIfRole,
             t11FamIfRowStatus,
             t11FamNotifyFabricIndex
          }
  STATUS   current
  DESCRIPTION
         "A collection of general objects for displaying and
         configuring Fabric Address management."
  ::= { t11FamMIBGroups 1 }

t11FamCommandGroup OBJECT-GROUP

  OBJECTS  { t11FamRestart }
  STATUS   current
  DESCRIPTION
         "A collection of objects used for initiating an
         operation on the Fabric."
  ::= { t11FamMIBGroups 2 }

t11FamDatabaseGroup OBJECT-GROUP

  OBJECTS  { t11FamDatabaseSwitchWwn }
  STATUS   current
  DESCRIPTION
         "A collection of objects containing information about
         Domain-IDs assignments."
  ::= { t11FamMIBGroups 3 }

t11FamAreaGroup OBJECT-GROUP

  OBJECTS  { t11FamAreaAssignedPortIdList }
  STATUS   current
  DESCRIPTION
         "A collection of objects containing information about
         currently assigned addresses within a domain."
  ::= { t11FamMIBGroups 4 }

DeSanti, et al. Standards Track [Page 34] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

t11FamCacheGroup OBJECT-GROUP

  OBJECTS  { t11FamMaxFcIdCacheSize,
             t11FamFcIdCacheAreaIdPortId,
             t11FamFcIdCachePortIds
           }
  STATUS   current
  DESCRIPTION
         "A collection of objects containing information about
         recently-released Fibre Channel Address Identifiers."
  ::= { t11FamMIBGroups 5 }

t11FamNotificationGroup NOTIFICATION-GROUP

  NOTIFICATIONS  { t11FamDomainIdNotAssignedNotify,
                   t11FamNewPrincipalSwitchNotify,
                   t11FamFabricChangeNotify }
  STATUS   current
  DESCRIPTION
         "A collection of notifications for status monitoring
         and notification."
  ::= { t11FamMIBGroups 6 }

END

7. Acknowledgements

 This document began life as a work item of the INCITS Task Group
 T11.5.  We wish to acknowledge the many contributions and comments
 from the INCITS Technical Committee T11, including the following:
    T11 Chair: Robert Snively, Brocade
    T11 Vice Chair: Claudio DeSanti, Cisco Systems
    T11.5 Chair: Roger Cummings, Symantec
    T11.5 members, especially:
        Ken Hirata, Emulex
        Scott Kipp, McData
        Michael O'Donnell, McData
        Elizabeth G. Rodriguez, Dot Hill
        Steven L. Wilson, Brocade
 Thanks also to Orly Nicklass of RAD Data Communications, Bert Wijnen
 of Lucent, and those members of the IMSS WG who provided review
 comments.

DeSanti, et al. Standards Track [Page 35] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

8. Normative References

 [RFC2578]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,
            "Structure of Management Information Version 2 (SMIv2)",
            STD 58, RFC 2578, April 1999.
 [RFC2579]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,
            "Textual Conventions for SMIv2", STD 58, RFC 2579, April
            1999.
 [RFC2580]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,
            "Conformance Statements for SMIv2", STD 58, RFC 2580,
            April 1999.
 [IF-MIB]   McCloghrie, K. and F. Kastenholz, "The Interfaces Group
            MIB", RFC 2863, June 2000.
 [FC-MGMT]  McCloghrie, K., "Fibre Channel Management MIB", RFC 4044,
            May 2005.
 [FC-SW-3]  "Fibre Channel - Switch Fabric - 3 (FC-SW-3)", ANSI INCITS
            384-2004, June 2004.
 [FC-SW-4]  "Fibre Channel - Switch Fabric - 4 (FC-SW-4)", ANSI INCITS
            418-2006, 2006.
 [FC-FS]    "Fibre Channel - Framing and Signaling (FC-FS)" ANSI
            INCITS 373-2003, April 2003.

9. Informative References

 [RFC2837]  Teow, K., "Definitions of Managed Objects for the Fabric
            Element in Fibre Channel Standard", RFC 2837, May 2000.
 [RFC3410]  Case, J., Mundy, R., Partain, D., and B. Stewart,
            "Introduction and Applicability Statements for Internet-
            Standard Management Framework", RFC 3410, December 2002.
 [FC-MI]    "Fibre Channel - Methodologies for Interconnects (FC-MI)",
            INCITS TR-30-2002, November 2002.

DeSanti, et al. Standards Track [Page 36] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

10. IANA Considerations

 IANA has made two MIB OID assignments, one for the T11-TC-MIB module
 and one for the T11-FC-FABRIC-ADDR-MGR-MIB module, under the
 appropriate subtree(s).

11. Security Considerations

 There are a number of management objects defined in this MIB module
 with a MAX-ACCESS clause of read-write and/or read-create.  Such
 objects may be considered sensitive or vulnerable in some network
 environments.  The support for SET operations in a non-secure
 environment without proper protection can have a negative effect on
 network operations.  These are the tables and objects and their
 sensitivity/vulnerability:
       t11FamConfigDomainId, t11FamConfigDomainIdType and
       t11FamContiguousAllocation -- ability to change the address
       allocation policy.
       t11FamRestart and t11FamAutoReconfigure -- ability to cause a
       fabric reconfiguration, e.g., on certain error conditions.
       t11FamPriority -- ability to affect which switch becomes the
       Principal Switch.
       t11FamRcFabricNotifyEnable -- ability to enable/disable a
       notification.
       t11FamIfRcfReject -- ability to change the switch's behavior on
       receipt of an RCF.
       t11FamIfRowStatus -- ability to change an interface
       configuration parameter.
 Some of the readable objects in this MIB module (i.e., objects with a
 MAX-ACCESS other than not-accessible) may also be considered
 sensitive or vulnerable in some network environments.  It is thus
 important to control even GET and/or NOTIFY access to these objects
 and possibly to even encrypt the values of these objects when sending
 them over the network via SNMP.  These are the tables and objects and
 their sensitivity/vulnerability:
       t11FamTable and t11FamIfTable -- contain the configuration,
       status, and statistics of the Fabric Address Manager.

DeSanti, et al. Standards Track [Page 37] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

       t11FamAreaTable, t11FamDatabaseTable and t11FamFcIdCacheTable
       -- contain information on currently assigned or recently-
       released addresses.
 SNMP versions prior to SNMPv3 did not include adequate security.
 Even if the network itself is secure (for example by using IPsec),
 even then, there is no control as to who on the secure network is
 allowed to access and GET/SET (read/change/create/delete) the objects
 in this MIB module.
 It is RECOMMENDED that implementors consider the security features as
 provided by the SNMPv3 framework (see [RFC3410], section 8),
 including full support for the SNMPv3 cryptographic mechanisms (for
 authentication and privacy).
 Further, deployment of SNMP versions prior to SNMPv3 is NOT
 RECOMMENDED.  Instead, it is RECOMMENDED to deploy SNMPv3 and to
 enable cryptographic security.  It is then a customer/operator
 responsibility to ensure that the SNMP entity giving access to an
 instance of this MIB module is properly configured to give access to
 the objects only to those principals (users) that have legitimate
 rights to indeed GET or SET (change/create/delete) them.

DeSanti, et al. Standards Track [Page 38] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

Authors' Addresses

 Claudio DeSanti
 Cisco Systems, Inc.
 170 West Tasman Drive
 San Jose, CA 95134 USA
 Phone: +1 408 853-9172
 EMail: cds@cisco.com
 Vinay Gaonkar
 Cisco Systems, Inc.
 170 West Tasman Drive
 San Jose, CA 95134 USA
 Phone: +1 408 527-8576
 EMail: vgaonkar@cisco.com
 Keith McCloghrie
 Cisco Systems, Inc.
 170 West Tasman Drive
 San Jose, CA USA 95134
 Phone: +1 408-526-5260
 EMail: kzm@cisco.com
 Silvano Gai
 Retired

DeSanti, et al. Standards Track [Page 39] RFC 4439 Fibre Channel Fabric Address Manager MIB March 2006

Full Copyright Statement

 Copyright (C) The Internet Society (2006).
 This document is subject to the rights, licenses and restrictions
 contained in BCP 78, and except as set forth therein, the authors
 retain all their rights.
 This document and the information contained herein are provided on an
 "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
 OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
 ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
 INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
 INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
 WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Intellectual Property

 The IETF takes no position regarding the validity or scope of any
 Intellectual Property Rights or other rights that might be claimed to
 pertain to the implementation or use of the technology described in
 this document or the extent to which any license under such rights
 might or might not be available; nor does it represent that it has
 made any independent effort to identify any such rights.  Information
 on the procedures with respect to rights in RFC documents can be
 found in BCP 78 and BCP 79.
 Copies of IPR disclosures made to the IETF Secretariat and any
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 attempt made to obtain a general license or permission for the use of
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 http://www.ietf.org/ipr.
 The IETF invites any interested party to bring to its attention any
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 rights that may cover technology that may be required to implement
 this standard.  Please address the information to the IETF at
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Acknowledgement

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 Administrative Support Activity (IASA).

DeSanti, et al. Standards Track [Page 40]

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