[c-nsp] 10Gigabit or other options for 12000 ?

[Mikael Abrahamsson]

On Thu, 21 Jun 2007, vince anton wrote:

> Hi,
>
> I'm looking into the options for going beyond 1Gbps on the 12k platform.
>
> The current box is a 12404 with single PRP-2 and 4GE-SFP-LC
>
> It looks like the 10G option is based on the SIP/SPA modules, and it doesnt
> come cheap at all.
> Other than that it looks like the other option would be POS based - which
> may be OK for the WAN, but what about the LAN connections in the core
> currently based on 7606-SUP720-3BXL - doest really make sense doing POS
> across the room to link 12k to 7600 ?

No, POS doesn't make sense.

I would recommend going for equal cost multipath over parallell gigs to 
link your 7600, and when you have more than 2-3, then you should be able 
to justify a SIP-601 and SPA-TENGE for the gsr.

Or, if you only run ethernet you can ditch the GSR altogether and do 
everything in the 7600.

Etherchannel on the GSR is not something I would recommend. It's really 
bad if you're running the older Engine 2 linecards, otherwise it's 
managable. I still recommend ECMP over Etherchannel, though.

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se