On Mon, 8 May 2000, Dennis wrote:
> At 12:08 AM 5/7/00 -0400, TheGolem wrote:
> >In my /etc/sysconfig/network-scripts/ifcfg-ppp0 script file, I have MTU set
> >to 578 (which was optimum for Windows -- but, I'm not sure it is for
betcha it was 576....
> >Linux?) and MRU set to 1000. Not getting errors, but for max
> >efficiency, shouldn't the Maximum Transfer Units be higher? Say, around 1000?
>
> In the old days, routers didnt forward frames larger then 570 some odd
512 bytes of payload + 64 bytes for header = 576. I think this was
somewhat a holdover from common practice with the BBN 1822 protocol that
IP replaced, but don't quote me.
> bytes by spec...now they almost universally use 1500 as the mtu. This was
1500 is roughly the size of a maximal Ethernet frame. Throw in the
physical-layer header and the frame is full.
> because lines had more errors and backbone speeds were slower and switches
> and routers had memory contraints...issues that no longer exist.
Let's say they've been relaxed -- unless you can tell me where to buy
unlimited memory chips and infinite-speed switches. :-)
--
Mark H. Wood, radical centrist OpenPGP ID 876A8B75 [EMAIL PROTECTED]
01/01/00 00:00:00 -- Apocralypse Now
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