[c-nsp] GRE tunnel to do span vlan across two datacenters?

[Bruce Pinsky]

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Eric Gauthier wrote:
> Hello,
> 
> I am not sure that you can bridge two subnets together using GRE, so
> you may need some additional technology if your goal is to make the 
> same subnet/IP float dynamically between locations.
> 
> With that said, if you use GRE, you'll want to make sure that the 
> underlying transport between your data centers supports an MTU large 
> enough to handle the GRE header without fragmentation.  
> 

Bridging over GRE, if it works at all, is not supported.

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bep

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