[c-nsp] Idiot checking LC compatibility across different 7600 chassis.

[Nick Cutting]

The 6148's are so bad - I think they share 1g of bandwidth  per 8 ports.  I saw a client dropping TB's a day with these linecards. 

-----Original Message-----
From: cisco-nsp <cisco-nsp-bounces at puck.nether.net> On Behalf Of Tom Hill
Sent: Friday, September 28, 2018 10:08 AM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Idiot checking LC compatibility across different 7600 chassis.

This message originates from outside of your organisation.

On 28/09/18 14:57, Jason Lixfeld wrote:
> To that end, I’ve got a bunch of WS-X6148A-GE-45AF cards and a pair of SUP720-3BXLs in a 7606 chassis (PID: CISCO7606) and it works fine despite the WS-X6148A-GE-45AF data sheet making no reference to 7600 support, only 6500 support.
> 
> I need to forklift the 7606 for a 7613 (which is already equipped with a FAN2 and a pair of PWR-6000-DC PSUs).
> 
> Should all just work, ya?

Most likely, yes. Though the 6148s are 'classic bus' cards, which do not use the chassis fabric. They're hideous and slow down the whole router, due to taking up bandwidth on the classic bus that is also used for lookup signalling between CFCs and the supervisor (no use of classic bus cards, and the use of DFCs, is required to overcome those limitations).

If you're intending to add more, please add 6548s as a minimum. Better yet, please put all of your 7600 gear into the sea and use more power-efficient devices. :)

Regards,

--
Tom
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