Cisco ACE dynamic rerouting (dc to dc failover)

[steve_bny]

Good day,

We currtenly have two dc's (site A and site B)

We are using netapps as our SAN and we ar booting our server directly from the SAN

SAN A and SAN B are insync and the network between site A and site B is routed.

The challange:

When a server is failover from site A to B it still has an ip adress that is routed to site A.(due to the SAN boot)

We have a cold - hot design in regards to the servers (so no clustering of ESX)

I have been reading about cisoc ACE and i think that it would solve the challange by dynamily updateing OSPF.

Can any one please confirm that cisco ACE will solve this challlange (whitout the need for any other additional hardware)

Thanks a lot,

Regards,

joli-coeur Wouter

(CCIE Security 23078)

[Surya ARBY]

It's more related to disaster recovery planning than ACE configuration

The cleanest way is to use L2 extension.

Otherwise you can use VMWare SRM to change the ip addresses of your VMs, or run an OSPF process and replicate all the subnets and put it in the "shutdown state" (or announcing it with a very high cost, proximity routing will do the rest - ACE module can do this for the VIPs with OSPF route health injection, ACE4710 doesn't support RHI but on the upstream router you can define an IP SLA probe and perform conditionnal redistribution), or use a dummy VRF with all your subnets and when enabling DRP, perform route leaking... use NAT with DNS-based failover etc...

There is no generic answer to your problem.