[c-nsp] Upgrading Catalyst 6500 from 720-3B to 720-3BXL

[Jon Lewis]

On Tue, 28 Apr 2015, [utf-8] Fernando García Fernández wrote:

> Hello all
>
> Iÿÿve tried to google the solution to one doubt I have, but couldnÿÿt find it.
>
> Iÿÿm going to upgrade a Catalyst 6509 from a 720-3B to a new 720-3BXL so we can use it for BGP routing with full Internet route table.
>
> The procedure Iÿÿm designing is:
>
> - create a CF for the 720-3BXL with the same IOS of the 720-3B
>
> - Insert the 720-3BXL y the second slot of the 6500
>
> - activate redundancy:
> conf t
> redundancy
> mode sso
> end
> show redundancy
>
> - switch processing to 720-3BXL
>
> redundancy force-switchover
>
> - disable redundancy
>
> conf t
> redundancy
> mode none
> end
>
> - remove 720-3B
>
> Iÿÿm almost sure that a 720-3B and a 720-3BXL can coexist in a chassis. Is correct?
>
> Also is the procedure correct?

Even if this worked, you'd still end up having to reboot.

In order to put full routes on the 3BXL, you're going to have to manually 
tune the v4/v6 mls cef maximum-routes split (which requires a reboot to 
take affect).

According to 
http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/107258-C6K-PFC-DFC-CFC.html
your plan is not going to work.

Q. Can the Supervisors with different PFC versions form redundancy?

A. You cannot use one type of PFC3 (PFC3BXL, PFC3B, or PFC3A) on one 
supervisor engine and a different type on the other supervisor engine for 
redundancy. You must use identical policy feature cards for redundancy.

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