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- Newsgroups: comp.mail.uucp
- Path: sparky!uunet!demos!news-server
- From: alex@icm.msk.su (Black One)
- Subject: Re: UUCP 'G' protocol packet size
- Date: Sun, 6 Sep 1992 12:39:57 GMT
- Reply-To: alex@icm.msk.su
- Organization: Informational Center "MATHEMATICS"
- Sender: news-server@kremvax.hq.demos.su
- Message-ID: <9209061339.AA25300@icm.msk.su>
- Lines: 37
-
- Hi !
-
- In article <1079@bazooka.amb.org> ti@bazooka.amb.org writes:
- > I have been playing around with the UUCP 'G' protocol by increasing
- > my uucico's supported window size from 3 to 7. This yielded a nice
- > ~20% boost in throughput when transferring compressed news batches.
- > This appears to have no ill effects as far as compatibility with other
- > systems go.
- .......
- > this to something like 4096 bytes? Do I run the risk of making my
- > uucico incompatible with other systems?
-
- Well, I tryed to change the packet size in my own UUCICO, and got a
- LOT of NAKs while talking with my main host. The most funny thing is
- that even when I tryed to send 32 byte packets on last bytes of a file,
- I received NAKs too.
- Some versions of UUCICO's seems to expect different packet lengths,
- as mine do, but never sends such packets. In addition most of them
- always sends the INITB packet with K=1 (64 byte packets).
- So, you can change the packet size, but anyway the remote system will
- send you an INITB with k=1, and you wouldn't be able to increase the packet
- lenght.
-
- About the boost. I tryed to use larger packets between two hardwired
- machines, and the boost was 100% using 1K packets instead of 64 byte packets.
-
- Ian Taylor in his "UUCP Internals Frequently Asked Questions" posted
- 26 Apr 1992 wrote that there is a 'G' (uppercase) protocol, that allows
- different packet size, receive window size more than 1 and so on, but I
- never meet a host talking 'G' protocol in Russia.
- Does anybody use the 'G' protocol out there?
- Regards
- Alex Kluev
- ---------------
- "There's no Dark Side on the Moon Realy"
-
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-