From: Ben (bmunyao@gmail.com)
Date: Tue Jul 31 2007 - 06:59:44 ART
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
This archive was generated by hypermail 2.1.4 : Sat Aug 18 2007 - 08:17:42 ART