Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!mailrus!tut.cis.ohio-state.edu!ut-sally!utah-cs!utah-gr!uplherc!sp7040!obie!wsccs!dave
From: dave@wsccs.UUCP (Dave E Martin  "VAX Headroom")
Newsgroups: comp.os.vms
Subject: Re: phone and decservers
Message-ID: <233@wsccs.UUCP>
Date: 1 Mar 88 23:09:16 GMT
References: <8802210603.AA29392@ucbvax.Berkeley.EDU>
Lines: 20
Summary: lat is optimized.

In article <8802210603.AA29392@ucbvax.Berkeley.EDU>, AAD@GOLD.SCRIBE.COM writes:
> 
> I was once told that the lat servers send an ethernet packet for every
> character, and that thus the overhead is ~256 to 1. (The same person
> said that the minimun size for an enet packet is something like 256 bytes)

Lat servers have a timeout value, usually 80 milliseconds on decservers.  During this
time they collect characters on all terminals and buffer them up.
After the timeout has expired, they will send ALL collected characters
as one ethernet packet (unless, of course they total more than the maximum
packet size).  I believe the minimum ethernet packet size is aprox. 43
bytes.

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|		    |	     Dave E Martin       | DISCLAIMER: Been Cancelled |
|    /\		    | "...between the streets of | $ opinion/mine/noUinTech   |
|   /  \  .    /\   | Dallas, and the beaches of |----------------------------|
|  /    \/ \/\/  \  | Miami ...  THIS  was   Max | ...!ihnp4!utah-cs!utah-gr! |
| / U i n T e c h \ | Headroom's  finest  hour." | uplherc!sp7040!obie!       |
|		    |	          --Max Headroom | wsccs!net23.dnet!dave      |
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