From: Ben (bmunyao@gmail.com)
Date: Tue Jul 31 2007 - 09:49:13 ART
Thanks Antonio, Djerk for your feedback.
The options then appear to be
1. EEK if using a P2P subinterface, or MP subinterface with a single PVC.
2. GRE with keepalive
3. IP SLA type FR (responder req'd on remote end)
4. IP SLA type icmpecho (responder no req'd)
5. PPPoFR, depending on the task and its dependencies with other tasks
Having some difficulty tracing IP SLA FR in Doccd. I would appreciate a URL
if anyone has located it.
Thanks once again
Ben
On 7/31/07, Djerk Geurts <djerk@djerk.nl> wrote:
>
> Antonio,
>
> Thank you didn't know they added FR support into IP SLA. Tested and works
> like a charm. Though you do need to add the responder to the other side of
> the pvc. Not tested to see whether it ignores the IP side of things like a
> misconfigured IP address.
>
> Another nice question for a proctor imho :)
>
> Djerk
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> > Behalf Of Antonio Soares
> > Sent: dinsdag 31 juli 2007 13:30
> > To: 'Ben'; 'Cisco certification'
> > Subject: RE: HSRP and tracking FR interface
> >
> > Hello Ben,
> >
> > The best solution i know for this kind of problem is using IP
> > SLA. Something
> > like this:
> >
> > R6:
> > +++++++++++++++++++++++
> > !
> > ip sla monitor 1
> > type frame-Relay interface Serial1/0 dlci 601
> > timeout 500
> > frequency 1
> > !
> > track 1 rtr 1
> > !
> > interface FastEthernet0/0
> > ip address 6.6.6.6 255.255.255.0
> > duplex auto
> > speed auto
> > standby ip 6.6.6.254
> > standby preempt
> > standby track 1
> > !
> > interface Serial1/0
> > ip address 10.10.10.6 255.255.255.0
> > encapsulation frame-relay
> > serial restart-delay 0
> > frame-relay map ip 10.10.10.1 601 broadcast
> > no frame-relay inverse-arp
> > frame-relay lmi-type cisco
> > !
> >
> > R1:
> > +++++++++++++++++++++++
> > ip sla monitor responder
> >
> >
> > Regards,
> >
> > Antonio Soares
> > CCIE #18473, CCNP, CCIP
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> > Behalf Of Ben
> > Sent: terga-feira, 31 de Julho de 2007 11:00
> > To: Cisco certification
> > Subject: HSRP and tracking FR interface
> >
> > Hi
> >
> > When a question requires HSRP on LAN with R3 and R4 as
> > active/backup, and R4
> > taking over when R3 looses FR connection, how can you track the FR
> > interface?
> >
> > Here is an example:
> >
> > .3
> > |-------------------------------R3 \
> > | \
> > |10.10.1.0/24 FR cloud
> > | /
> > |-------------------------------R4 /
> >
> > Assume FR is configured on physical interface. Would the
> > following qualify
> > as a solution?
> >
> > R3
> > int f0/0
> > ip add 10.10.1.3 255.255.255.0
> > stand 1 priority 105
> > stand 1 preempt
> > stand 1 track s0/0
> > stand 1 ip 10.10.1.254
> >
> > R4
> > int f0/0
> > ip add 10.10.1.4 255.255.255.0
> > stand 1 preempt
> > stand 1 ip 10.10.1.254
> >
> > I presume this use of the track keyword only tracks the
> > line-protocol on
> > s0/0, and will therefore not detect when R3 looses IP
> > connectivity to the
> > other end of its DLCI. A variation of the stand 1 track s0/0
> > on R3 would be
> >
> > track 1 interface s0/0 line-protocol
> > int f0/0
> > stand 1 track 1
> >
> >
> > Another recent discussion on EEK indicated that EEK will not
> > bring down the
> > interface when the other end is not reachable. How can we
> > then meet the
> > requirements of the question? Do we have do use a GRE tunnel
> > with keepalive
> > over the FR link, and track that? Is there any other alternative?
> >
> > TIA
> > Ben
> >
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