[c-nsp] Different Supervisor in 7609 + High Availability (SSO + NSF + GR)

[Matlock, Kenneth L]

If the 2nd one will even come up, it will almost definitely come up in RPR mode instead of SSO. So you're going to take a hit on all your linecards when trying the switchover. (My guess is the other will get stuck in 'standby cold' state).
 
If it were me I'd just take a downtime hit and replace them both at the same time.
 
Ken

________________________________

From: cisco-nsp-bounces at puck.nether.net on behalf of cisco-pe
Sent: Sun 7/17/2011 1:46 PM
To: Gert Doering
Cc: cisco-nsp
Subject: Re: [c-nsp] Different Supervisor in 7609 + High Availability (SSO + NSF + GR)



Hi Gert,
Thank you for your response. Following your recommendations, I am planning
to replace my most important router with the new sup (RSP 720-3C) and re-use
the WS-720-3B to implement dual-sup in the other routers.

The idea is the follwong:
Main Router 7609-S with dual-sup WS-720-3B (02)
- Replace the stand-by sup (WS-720-3B)  by one RSP 720-3C.( here the
critical point, I will try to test in lab if I get all the resources)
- Switchover to RSP 720-3C and then this sup become the active sup.
- Replace the old WS-720-3B by one RSP 720-3C and at the end, to have one
7609-S with 02 RSP 720-3C

Best Regards
JC


On Sun, Jul 17, 2011 at 2:17 PM, Gert Doering <gert at greenie.muc.de> wrote:

> Hi,
>
> On Sun, Jul 17, 2011 at 01:38:16PM -0500, cisco-pe wrote:
> > Is it possible to use two different supervisor in one 7609? (WS-720-3B
> and
> > RSP 720-3C)
> > At this moment we are using a number of 7609 with only one supervisor
> > (WS-720-3B), and we want to implement HA using a second supervisor (RSP
> > 720-3C).
>
> Can't answer that bit, sorry.  (It might work, and fall back to "3B"
> capabilities - but very likely TAC will tell you "this is unsupported",
> and quite likely, IOS will just crash).
>
> If you have multiple routers anyway, I'd just move half the routers
> to dual-RSP720 and the Sup720-3B that are no longer in use there can be
> used in the other half for dual-Sup720-3B setups...
>
> > Another question: We are using the GE port on the main supervisor for the
> > Uplink connection, if we use the GE interface on the second supervisor,
> is
> > it possible to use this link to implement load balancing ?
> > Or this link only will be active when the supervisor change from stand-by
> to
> > active??
>
> On a 6500/7600 with (supported - see above :) ) dual supervisors, all
> ports can be used.
>
> gert
> --
> USENET is *not* the non-clickable part of WWW!
>                                                           //
> www.muc.de/~gert/
> Gert Doering - Munich, Germany
> gert at greenie.muc.de
> fax: +49-89-35655025
> gert at net.informatik.tu-muenchen.de
>
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