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Re: Thoughts on increasing MTUs on the internet


From: "David W. Hankins" <David_Hankins () isc org>
Date: Thu, 12 Apr 2007 15:09:56 -0700

On Thu, Apr 12, 2007 at 05:58:07PM -0400, Daniel Senie wrote:
2. It's no longer necessary to manage 1500 byte+ MTUs manually

But for this, there has been (for a long time now) a DHCPv4 option
to give a client its MTU for the interface being configured (#26,
RFC2132).

Trying to do this via DHCP is, IMO, doomed to failure. The systems 
most likely to be in need of larger MTUs are likely servers, and 
probably not on DHCP-assigned addresses.

If you're bothering to statically configure a system with a fixed
address (such as with a server), why can you not also statically
configure it with an MTU?

-- 
David W. Hankins        "If you don't do it right the first time,
Software Engineer               you'll just have to do it again."
Internet Systems Consortium, Inc.       -- Jack T. Hankins

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