----------------
CONTENTS
Introduction
Modulation Protocols
2400 bps modems
High-speed modems
... ome
V.fast
ISDN
Error Control Protocols
V.42 and MNP-4
V.42 & MNP-4 can provid... hput
Are MNP 4/V.42 useful?
Data Compression Protocols
MNP-5 & V.42bis
Are MNP-5 & V.42bis us... uld you buy a modem with a proprietary modulation protocol?
Should you buy a 2400 bps modem with V.42bi
ssing several of the more popular file transfer protocols.
This session will go farther into the area of file transfer
protocols, technology such as the 9600 bit per second mode... nd how one goes about
intelligently selecting a protocol given a basic understanding of
their environmen... e at
this time. MNP (Microcom Networking Protocol) which was
developed by Microcom and ARQ (a g
our use. Things like page
length, transfer protocol, or hot keys. If you are not sure, use
the... downloads unziped.
File Transfers and Protocols
----------------------------
The ac... ttings, always make sure your file
transfer protocol matches what the bulletin board will be sending
... t boards offer a selection of file transfer
protocols which the caller can select from, as do most
an initial
version I indicated that SEAlink protocol used 32-bit CRC, it
does not. The second is ...
anything but an excellent example of contemporay protocols and am
dismayed at the crudeness of Mr. Fors... e neglects the main point, the reliability of any protocol
is dependent on its implementation. CRC-16 ... --Paul Meiners
*/
GTTUTOR confuses YMODEM protocol with XMODEM-1k. YMODEM, developed in the
early 1
as an integrity check vehicle. Instead, in every protocol
other than ASCII we add either one or two full by... ady saw that for every 128 bytes of data, in most protocols,
we send an additional one or two bytes of CRC. ... s time to transmit. Also,
it takes time for most protocols to turnaround and react to the
ACK or NAK. For ... se, is that it does so only by convention.
Newer protocols do not wait. They assume that a transmission
wi
for your use. Things like
page length, transfer protocol, or hot keys. If you are not sure, use the
reco... + + + + +
File Transfers and Protocols
The act of receiving a file from another compu... our settings, always make sure your file transfer protocol
matches what the bulletin board will be sending ... Most boards
offer a selection of file transfer protocols which the caller can select from,
as do most co
preference settings for personal upload/download protocols
* choice of message editors
* automatic command ... ng supported for any archiver with that ability
* protocols are completely configurable to allow the use of external
file transfer protocols (XPR) and DLG-compatible protocols
* custom Xmodem (Checksum / CRC / 1K) and Zmodem protocols included
* s
)
* ability to up-load and down-load files using protocol to detect errors
* ability to change communicati... uring transmission.
FILE TRANSFER PROTOCOL: An agreed upon convention for
tr... oped for transferring files. These file transfer protocols monitor the
quality of the data being transferre... sfer.
FILE TRANSFER PROTOCOLS
~~~~~~~~~~~~~~~~~~~~
ation scheme used for Fax, and T.30 defines a Fax Protocol.
Fax machines nowadays can transfer Faxs at 4800... full advantage
of a Full Duplex Modem: By using a protocol called Bimodem to upload and
Download at the same... BBS's and users still use one
direction transfer protocols such as Zmodem or YModem-G.
-------------------... MNP
MNP (Microcom Networking Protocol) levels 1-4 are methods of error correction
in wh
D>ownload, <L>ist, or <Q>uit.
?d
Select Download Protocol
1. XMODEM
2. XMODEM (w/1K blocks)
3. YMODEM
4. Z... ople somewhat new
to the Z-Modem transfer protocol. I've discovered some quick (and
quite f... of using Zmodem
as a background transfer protocol, but, until then this could an
alternate ... <D>ownload, <L>ist, or <Q>uit.
?
Select Download Protocol
1. XMODEM
2. XMODEM (w/1K blocks)
3. YMODEM
4. Z
.
Ok. File transfers work with what is called a protocol, or simply
stated, the method by which they are transfered. The most common protocols
are XMODEM, YMODEM and ZMODEM, but granted I mus... u have there will be many many different types
of protocols which you can use. The way in which a protocol works is that
the host computer sends the particular file
t funded a project to develop a new file
transfer protocol to alleviate the throughput problems network
cust... m
X.PC, HDLC, BISYNC, Kermit, and dozens of other protocols, while
avoiding many of their shortcomings.
... eed, reliability, and ease of use has made it the protocol
of choice for thousands of bulletin boards, GEnie... se the speed gap between ZMODEM and less reliable protocols
without sacrificing ZMODEM's historical robustne
r.
SLBBS supports all the standard file transfer protocols,
including built-in ZMODEM. You can add external protocols as
well, such as YMODEM-Batch and HS/LINK. SLBB... onference (message base) areas
- 36 file transfer protocols supported
- Supports 37,767 DOORS per conference... other BBS systems, such as internal
file transfer protocols, and RIP graphics support. Wildcat is
commercia
d more.
+ Supports the most popular file transfer protocols.
+ Full support for single and multi-disc CD-ROM... nterface system to install up to fifteen external protocols.
+ Fully configurable file ratio system allows t... rnal support for external bi-directional transfer protocols.
+ Provision that allows users to download a tex... us protection
+ Use external and bi-directional protocols
+ Automatically imports FILE_ID.DIZ and DESC.