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Speeding up phone failover

kseraphine
Level 5
Level 5

Hi

I was working on a small ccm 4.0.2 installation last night and wanted to test the failover when the subscriber goes down. I did this by shutting down the switch ports used by the subscriber. I did this a number of times and it took between 70 - 90 seconds for the phone to register with the backup and give me dial tone.

I adjusted the Station KeepAlive Interval (sec) service parameter from 30 seconds down to 10 seconds without any improvement.

I notice a setting on the device pool called Connection Monitor Duration but I can't find any information on what it does so I didn't mess with it.

This is a small installation with two callmanagers and about 75 phones.

Any suggestions on how to speed this up?

2 Replies 2

dandis
Level 1
Level 1

Enable spanning-tree portfast on the switch ports

Portfast is already enabled on all phone and server ports. Thanks for the suggestion though