Information on Survivability and Redundancy for 1 CS1000M and 2 CS1000E's

[2newphoneguys]

Hi everyone, this is my dilema...trying to figure out the following configuration. Can anyone give me some help? My higher ups have given me a tight timeline...LIKE TOMORROW...for an answer!

Alternate 1 switch configuration:
1 CP PM as a Call Server
1 CP PM as a Signaling Server
2 Media Gateway Controllers
2 4526T Routers
1 SR1002 Router
1 PRI for call processing/SIP trunks

Alternate 2 switch configuration:
1 Media Gateway Controller
1 CP PM as a Call Server
1 IBM eServer X-Series 306m
2 4526T Routers
1 PRI for call processing/SIP trunks

Main switch configuration:
2 CP PM Signaling Servers
1 Dell PowerEdge 1750 Server
2 4526T Routers
2 PRI’s for call processing/SIP trunks
2 CP PIV’s as CPU’s (not sure if this info is needed) for CS 1000M, the other two sites are stand alone CS1000Es


I need to know how I can make this setup survivable in the event of a disaster at one of the 3 sites. So survivability and redundancy are of utmost importance. The two alternate sites process their calls over the SIP trunks through the main site. Should anything happened to any one link in this design the others should be able to process calls as normal. Right now, that is not possible. When the main site goes down the other two sites are down as well. The other two sites communicate over approximately 70+ SIP trunks and 1 DCH assigned to them.

So my question is what other equipment, routing, programming, or anything you can imagine, would I need? I am relatively green at this.

If there is any other information you need let me know.

Thanks

 

[janaya]

What release? All IP Sets? Are they willing to spend a little money.

Look at the Fundamentals of Redundancy book. NTP 43001-507. It talks about SMG (Survivalble Media Gateways). This will get you started. Your systems could be converted to this with a little programming.

 

[2newphoneguys]

I guess that's really pertinent information isn't it....Rel 5.5 No IP sets at all. We will be moving to VoIP by the end of the year, supposedly.

Thanks Janaya

 

[janaya]

Ok. You have a problem with 5.5 because you cant get package 404/405 (Geo-Redundancy Package). When you upgrade, you may consider the SMG environment.

All Phones are programmed on the 81C. You would convert that to a CS1000E with MGXPEC cards and a couple signaling servers. You would implmement UCM/system manager/session manager.

Alternate sites would be Survivable Media Gateways off the Main site, but one would be the Secondary site. This way all phones are programmed in the 81C platform and the database is repliacted to each of the Alternate sites. If you have a catastrophic WAN failure, or even a Call Server failure at the 81C, the other sites would go into Active mode and be stand alone.

This is a very simple explanation and you need some more information, but there is not enough room here. I have done this and it's not that bad once you get a grasp of everything. Call your Avaya Rep or Maintenance Provider. They can sit down and explain how all this will work.

Hope this helps.

 

[2newphoneguys]

Thanks Janaya this does help tremendously. I was reading the NTP you referred and am gaining quite a bit of understanding of how things work, though I think I will need some guidance from the recommended reps. I appreciate your time and advice!