[c-nsp] Scaling L2

[Keegan Holley]

Have you looked at non-cisco equipment.  Juniper EX4200 for example is
comparable in price to the 3750E/X and can do vlan cross connect and
ethernet over mpls.  You can use the circuit cross connect to create a
separate switch with "core" vlans used only to cross connect between groups
of switches.  If you have vlans that you can "prune" from the core
distribution you can free up some mac address space.  Cisco has a similar
feature called vlan-maps but I think it's only supported on the 6500's.

On Sun, Jan 9, 2011 at 7:12 PM, T Johnson <tjohnson46 at gmail.com> wrote:

> I have a virtualization environment that is quickly growing and I tend
> to use "smaller" catalyst 2xxx and 3xxx series switches. One problem I
> see coming up is running out of MAC address table space on these
> switches as well as tons of L2 broadcast traffic.
>
> My question is this: does cisco have a way to deal with this when
> you'd want to keep things in one L2 domain (rather than
> forcing L3 boundaries)? I see the TRILL/fabricpath stuff, but of
> course it only runs on switches I don't have the budget for.
>
> Dreaming up things... it would seem fairly easy if I could just
> "route" sets of MAC addresses out to different connected switches.
> It's fairly easy to assign MAC addresses on the server side to help support
> this. Anything like this possible? Or another solution?
>
> Thanks
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