Re: HSRP

NSF/SSO allows RPs to fail over without any packet loss, and ESPs can fail
over with extremely small packet loss.

If we are talking redundant RPs/ESPs here and SSO NSF aware, then the
standby group will not change and the Active router would remain to forward
the traffic as usual.

If this is between just two ASRs or between any two routers, the Standby
router takes over forwarding if the control frames messages are lost.

Thanks,
Tharak Abraham Luke

On Wed, Jul 11, 2012 at 4:20 PM, Jay McMickle <jay.mcmickle_at_yahoo.com>wrote:

> I think his question was about how the ASR would detect the failure and
> about tracking.
>
> I'm not familiar with the ESP card, but from the sounds of it, it will
> just know (ESP, haha).
>
> What are the effects of the ESP card? If it's like a SUP, the hellos would
> e lost and yes, the 2nd would become active if preempt is enabled.
>
> I need to look up the ESP card as I installed two ASR1001's yesterday.
>
> Regards,
> Jay McMickle- CCIE #35355 (R&S)
> Sent from iJay
>
> On Jul 10, 2012, at 2:00 PM, Tony Singh <mothafungla_at_gmail.com> wrote:
>
> > Depends which one is active at the time of failure, my understanding is
> the highest priority hsrp group would remain active, what interfaces have
> you configured the group on
> >
> > --
> > BR
> >
> > Tony
> >
> > Sent from my iPhone on 3
> >
> > On 6 Jul 2012, at 11:20, jack daniels <jckdaniels12_at_gmail.com> wrote:
> >
> >> Hi Experts,
> >>
> >> If there is HSRP running between two Cisco ASR Routers 1004 and ESP
> card FAILS.
> >> Then how will it Network Behave-
> >> Will there be no HSRP Hellos and both become active ?
> >>
> >> Regards
> >>
> >>
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Received on Wed Jul 11 2012 - 18:10:54 ART