Re: Reopening jumbo frames in IS-IS

[Tony Li <tony.li at tony.li>]

> Until something changes there is no automatic means to detect and
> correct an MTU mismatch on the same subnet.  If running ISIS there is
> the means to detect the error but I don't think there is an automatic
> correction (no MTU fallback).  I'd have to check the expired draft.


There is currently no such mechanism.

Note that correction between routers is less of an issue.  If all end
systems on the (V)LAN are not agreed on the MTU, then there is a more
general problem.  If all end systems are fixed, then presumably all
routers are as well.

Tony