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New Member

extension mobility fallback through SLB

Dear List,

I want to achieve EM fallback using server load balancing method.

Following is the partial configuration for switch-1:

ip slb vserver VS1

virtual 10.148.3.9 tcp 8080

serverfarm CCMGroup1

in-service standby em_group1

!

My question is regarding tcp port xxxx, I think I've configured it correctly to 8080.

If anybody can comment on this please.

Thanks,

inner_silence

2 REPLIES
Silver

Re: extension mobility fallback through SLB

From the CallManager perspective when configuring SLB for EM redundancy we need to make sure that the SLB virtual IP address is configured for the URL Services and EM IP phone service. You can configure port as 8080 for TCP.

Configuring Server Load Balancing:

http://www.cisco.com/en/US/docs/ios/12_2/ip/configuration/guide/1cfsflb.html

New Member

Re: extension mobility fallback through SLB

Thanks man,

I had it working. Port config was fine. Couple of things I was missing I'll add here in case somone wants to refer this thread in future:

"nat server" is required inside server farm.

ip slb serverfarm CCMGROUP1

nat server

!

Pointed the URL services inside Enterprise Parameter to Virtual IP Address. Now, even I take Publisher out of the network, the phones still get the extension mobility service when pressing the services button, else it was failing since EP were pointing to Pub IP and Pub was unreachable.

thanks

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