Redundancy between Offices

[kaoslife]

I'm planning on installing a pair of 2821's at our Primary site and a pair at one of our remote sites. I've configured HSRP at each site to fail over from the Primary box the the Standby box at each location, but am looking for some direction on redundancy. If the primary link fails, how do I ge the standby router to take over. HRSP will onlt failover if the interface goes down correct? What if the Provider has an outage on their Core? Can someone point me to a sample config with two site connectted with redundant routers at each site with either one or two WAn links and possibly a ISDN backup link?

[cdfowlie · Accepted solution]

This is a challenge where the Service Provider demarc may not necessarily give you a "line protocol down" in the event of a problem. Check out this config using the Service Assurance Agent. You should be able to tailor this to your needs: (Within the RTR config, you would choose a meaningful next hop address instead of 192.168.254.1 which I've used for illustration here...)

rtr 1

type echo protocol ipIcmpEcho 192.168.254.1

request-data-size 1000

timeout 1000

threshold 500

frequency 5

rtr schedule 1 life forever start-time now

track 3 rtr 1 reachability

interface GigabitEthernet0/1

ip address 192.168.5.2

standby 1 ip 192.168.5.1

standby 1 priority 105

standby 1 preempt

standby 1 track 3

[kaoslife]

Thanks, This has helped