MTU mismatch on one link

Justin M. Streiner streiner at
Fri Aug 31 09:47:32 CDT 2012

On Fri, 31 Aug 2012, Andrew K. wrote:

> Besides routing protocol convergence is there any service issues with running 
> mismatched MTU?  Assuming the packet flow does not exceed the smallest MTU 
> value.

Not really, but given the bursty nature of IP traffic, that's a very 
dubious assumption.

In other words, you _can_ do it, but it's not a good idea, and can end up 
making lots of extra headaches for you/whoever supports this setup.


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