[cisco-voip] VGW IP switch

[Voll, Scott]

Thanks guys for the quick response.  Your Great.

-----Original Message-----
From: Wes Sisk [mailto:wsisk at cisco.com] 
Sent: Thursday, April 27, 2006 3:59 PM
To: Voll, Scott
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] VGW IP switch

Change the IP on the gateway, do a no mgcp, mgcp.  Gateway initiates  
session to CM for MGCP.

if you've bound the MGCP to an interface IP, make sure to update that  
cmd in the gateway as well.

/Wes

On Apr 27, 2006, at 6:46 PM, Voll, Scott wrote:

I'm just trying to walk it though my head but wanted to bounce it off
everyone and see if any one else has done it and what kind of down time
I'm looking at.

I have a remote site that is connected to the Central site via a T1.
looks like this

						|------- PRI to PSTN
						|
Voice VLAN   --- 10.x.x.1 ------- VGW ------------FR T1 to Central site
						|
Data Vlan ------ 10.y.y.1 ----------|

I am going to move to Metro E and both the Voice and Data Vlan's are
going to terminate on the Router back at the central Site.  There for
the two (V)LAN IP addresses are going to the central router and the T1
Serial IP address is going away.  So I need to change the IP address of
the VGW. To look something like this:

Voice Vlan --- 10.x.x.2 ----- VGW ------ PRI to PSTN.

The VGW is MGCP with CM 4.1.3sr2.  Do I just change the IP address and
it reregisters with CM and I'm only down a couple of minutes or is there
more for me to do?  Do I have to recreate the VGW in CM with the new IP?
How long am I looking at being down?

Thanks for any insight.

Scott

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