Hi,
I have a query regarding Extended object tracking used in HSRP.
Scenario:- We have two IPLCs , each connected to an MGX 8850 at each end.
The MGX 8850s have a FRSM card which is connected to Cisco3745 routers
running IOS ver 12.2(15)T, by back to back DTE-DCE cable combination. We
have configured HSRP between the two routers at each end.Static routes are
used to route data between the networks.No dyanmic protocols are used due
to customer regulations.
Router1 Router 3
--------------------- HSRP
----------------------
| |
| |
| |
------------------------
------------------------
| MGX 8850 | | MGX 8850 |
------------------------
------------------------
| |
| |
|IPLC |IPLC
| |
------------------------ ---------------------
| MGX 8850 | | MGX 8850 |
------------------------ ---------------------
| |
| |
| |
---------------------- HSRP ---------------------
Router 2 Router 4
Objective:-We would like the HSRP to recognise a IPLC failure and switch to
the alternate path in case of IPLC failure.
Problems:- When we use the normal HSRP command (standby 1 track serial 0/0
) to track the serial inerface, the serial interface is unable to
recongnise that the IPLC is down. It shows both serial interface and line
protocol up even when the IPLC connected to the MGX8850 is down. So inorder
to overcome this problem we configured the extended object tracking to
track the Ip route reachability.But even after this , the track command in
unable to switch the HSRP router when the link goes down.
Show track 100
command show that
Ip reachability UP (static).
Queries:--
Does this mean that the IP reachability tracking will not work with
static routes?
What could be other suggestions to overcome this problem.
Can we create loop back interfaces in the four routers and then enable RIP
among them, and make HSRP track the ip route reachability to the loopback
interface from the remote end?
Any inputs would be valuable...
regards
Diva.
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