From: YourPal (dearprudence28@gmail.com)
Date: Fri Mar 14 2008 - 06:37:54 ARST
Hi Pandi,
I tested the following two scenarios without EEK:
1. R3 uses p2p sub-int, R4 uses multipoint sub-int (no inverse-arp. I used
frame map).
2. Both R3 and R4 use multipoint sub-int (both use frame map with
inverse-arp disabled).
In either case, shutting down the physical serial interface on one router
causes the remote router's sub-int to go down as well.
I'd say we can configure HSRP can track the sub-int directly without
additional mechanism to detect PVC failure.
If physical interface is used and needed to be tracked by HSRP, we can use
the GRE tunnel, IP SLA, etc methods.
Correct me if I'm wrong.
Thank you.
BR,
Emil
On 3/14/08, PANDI MOORTHY <moorthypandi@gmail.com> wrote:
>
>
>
>
> Hi Sadiq Yakasai
>
>
>
> Yes I can understand the EEK works fine for both interfaces.
>
>
>
> But for the above question, we need to bring down the interface when the
> PVC is goes down
>
>
>
> If we apply EEK under the main interface and when the PVC is down, do you
> thing EEK will bring down the main interface? Please advice
>
>
>
>
>
> My Test:
>
>
>
> Router R4 and R3 connected via FR
>
>
>
> I have configured the multipoint sub interface on R4 and R3 and applied
> the EEK under sub interface.
>
>
>
> When I shut the R3 serial interface, then after the two EEK hello
> intervals, the R4 sub interface also went down.
>
>
>
>
>
> I did test without EEK on these sub interfaces, the R4 sub interface
> remains up even though I shut the R3 serial interface. This proves to me
> that EEK is bring down the sub interface when there is a PVC failure
>
>
>
>
>
> I did the same test on the main interface with EEK enabled, but the serial
> interface remain up/up when I shut the remote router serial interface
>
>
>
>
>
> Map-class frame-relay e-2-e
>
> Frame-relay end-to-end keepalive mode bidirectional
>
>
>
> R3:
>
> --
>
>
>
> Int serial 1/0.1 multipoint
>
> Ip add 10.2.2.3 255.255.255.0
>
> Frame-relay class e-2-e
>
> Frame-relay interface-dlci 304
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> R4:
>
> --
>
>
>
> Int serial 1/0.1 multipoint
>
> Ip add 10.2.2.4 255.255.255.0
>
> Frame-relay class e-2-e
>
> Frame-relay interface-dlci 403
>
> Regards
> Pandi
>
>
> On 3/13/08, Sadiq Yakasai <sadiqtanko@gmail.com> wrote:
> >
> > Pandi,
> >
> > It doesnt matter where you apply it. You just need to apply it to a
> > DLCI since its a map-class.
> >
> > Wether on the sub-interface or the main interface, it works fine.
> >
> > HTH
> >
> > Sadiq
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