[cisco-voip] CME & Redunancy?

[Leetun, Rob]

I don't know the exact answer for this but it looks like HSRP is the way
to go from a quick scan of CCO.

IP-HSRP testing
Configure HSRP between the two Cisco 3825 routers and the two Cisco 3845
routers. IP phones should register with the virtual HSRP IP address,
which is tied to the primary voice routers. IP phones must reregister
with the backup router.
---	
Verify IP phones will reregister with the Cisco CME on the backup router
after the master HSRP router goes down. Also verify PSTN trunks
failover.
---	
The IP phones were registered to the primary Cisco CME router and failed
over to the backup router. The failure was simulated by pulling the
electric plug on the primary router. 
---

To configure HSRP put something similar to this on each router that is
to participate...
ROUTER#1
interface FastEthernet0/0.88
 description Phone Network
 encapsulation dot1Q 88
 ip address 192.168.88.2 255.255.255.0
 standby 88 ip 192.168.88.1
 standby 88 priority 110 preempt
 service-policy output L3-to-L2-SubInt

ROUTER#2
interface FastEthernet0/0.88
 description Phone Network
 encapsulation dot1Q 88
 ip address 192.168.88.3 255.255.255.0
 standby 88 ip 192.168.88.1
 standby 88 preempt
 service-policy output L3-to-L2-SubInt

The default priority is 100. The higher priority will own the route.
HSRP takes up to 10 seconds to fail over.
You can type show standby to see who owns the route and the routers that
are sharing the route...

Good luck :)

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Sean Watkins
Sent: Tuesday, November 29, 2005 7:33 AM
To: 'cisco-voip at puck.nether.net'
Subject: [cisco-voip] CME & Redunancy?

Hi,

Is there any way to setup CME for some redunancy using HSRP etc? I have
found some references on CCO, but nothing in any docs on setting it up.

Sean
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