RE: [SQU] More on WCCP and truncated GRE packets. --HELP

Nathan,

At 05:34 PM 13/12/2000 -0600, Nathan Lewis wrote:
>At 02:43 PM 12/13/00 -0800, Lincoln Dale wrote:
>>yes, you could just increase the MTU on the cisco router to something
>>larger than 1500.
>>but remember that the MTU is at 1500 for a _reason_.
>
>Crap. See output below:
>
> >config t
> >interface Ethernet0/0
> >mtu 1524

nice of you to cut-and-paste my email selectively.
to repeat what i said in the next sentence:
         it all has to do with what the "standard" for ethernet allows.

may i suggest that you take a read of:
         "The Ethernet - A Local Area Network", version 1.0, Digital Equipment
         Corporation, September 1980
and
         "The Ethernet, A Local Area Network" Data Link Layer and Physical
Layer
         Specifications", Digital, Intel, and Xerox, November, 1982.

while there are ways to extend the maximum-frame-size (so called "giant
frames" and "jumbo frames"), you have found that a 2600 router is not
capable of such a thing (and your unix box / network card probably wouldn't
be without specific driver enhancemts either).

cheers,

lincoln.

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