Simple failover routing methods - any ideas?

[hoopteyxx]

Greetings all,

I was wondering if anyone was able to point me in the right direction... I've got a 2611 that's using a static route to forward inbound requests on port 80 to my webserver, which is on the LAN behind the router...

Instead of an LVS (virtual server) type solution, I was hoping to mirror my webserver with a backup machine, and in the event that the one route went bad it would forward the requests to a second machine with another route... Is there something built into IOS I don't know about (there's a TON I don't know...)

???

Thanks in advance,

Justin K.

[thisisshanky]

This is normally a feature supported by load balancers like Local director (EOL), CSS (from Cisco), F5 BIGIP and similar products. You could also enable similar feature using SLB (server load balancing feature in catalyst 6500).

I doubt if there is a work around other than load balancers in this scenario.

Unless you can use some form of server clustering where multiple servers share same content and share a common virtual IP, and if one goes down, the other server will take over. BEA Weblogic server for example runs Apache and does support clustering. I am sure Microsoft Windows server products do support something similar.

[hoopteyxx]

I understand and appreciate what you're getting at. I'm assuming I'm going to use LVS (Linux virtual server) to accomplish this. I was just thinking that if the router could do simple failover (which is what I'm interested in, not true load balancing)I could save time and the fact that I'd need extra machines as balancers would vanish.

[mlund]

Hi Justin

You can try with PBR (policy based routing) and SAA object tracking. Here's one link that can give you a hint.

http://www.cisco.com/en/US/partner/products/sw/iosswrel/ps5207/products_feature_guide09186a00801d1e95.html

/Mike