[c-nsp] Connecting isolated L3 islands without GRE tunnels

Phil Mayers p.mayers at imperial.ac.uk
Fri Jul 12 10:14:04 EDT 2013

On 12/07/13 14:13, Adam Greene wrote:
> Why is the GRE performance so bad? Perhaps you need to adjust MTU ...

3560 is, I presume from what he's said, Catalyst 3560, and the low-end 
Cat's don't perform GRE in hardware, which means it doesn't work 
properly *at all* - slowness is the least of his worries.

Unless the OP can specify his problem in more detail i.e. why he thinks 
he needs tunnelling in the first place, it's all a mystery...

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