RE: 4507-Dual SUP- UPLink on both SUP-Redundancy

Jack,

> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> jack daniels
>
> But is there some way out of redundancy of uplinks if standby sup
> interface
> is not operational till ACTIVE sup is down

I'm not sure I follow the conversation exactly, but with SUP IV's only using SSO, only one the first of the two uplinks is active, but you can enable an etherchannel (PaGP, LACP, or ON) across both SUP's using that first interface. If you're using the SUP's in RPR, you should reconsider the design, you're looking at least 45 seconds of downtime when the SUP's failover. At that point, redundancy shouldn't come into play at all, everything must be re-established.

>
> On Wed, Dec 30, 2009 at 5:15 PM, Danshtr <danshtr_at_gmail.com> wrote:
>
> > I have tested 4507 with two SUP-6e.
> >
> > Both interfaces on both SUPs are fully operational, regardless of the
> SUP
> > standby state.
> >

6e's are nice, but only applicable for the E chassis. However, a SUP V will also work, but the II-Plus and IV and V won't do this. Here is the Supervisor Uplink Redundancy page:

http://www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note09186a0080134f18.shtml#topic2

HTH,

-ryan

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Received on Wed Dec 30 2009 - 13:38:54 ART