[sclug] Bizarre IMAP problem

[Roland Turner SCLUG]

Alex Butcher wrote:


> Even better, ifconfig eth0 mtu 576, which is the largest MTU that is
> guaranteed to traverse any and all types of network without fragmentation.


Interesting; where does this number come from? (A spec somewhere, or
simply the observed behaviour of lots of different IP carriers?) This[1]
MS KB article states:


    The Internet standard for MTU is 576.


without attribution. The google search "site:ietf.org mtu 576" yields _no_
hits which suggests that, if it is a standard, it's certainly not a formal
one.


- Raz


1: http://support.microsoft.com/kb/q183437/