[cisco-voip] IOS gatekeeper Load Balancing?

[Christopher M. Bomba]

Are you using CallManager to send to the gatekeepers?

CCM -> Local GK -> GK Lookup -> Remote Zone 1 or 2

If you have the opportunity to register both GKs to the CallManager you can use route groups/route lists and choose circular for your routing algorithm.  

You can also try the command "call-routing hunt-scheme percentage-capacity-util" under GK config.  Your gatekeeper must report the capacity of the Voice & H.323 ports it possesses in the RAS messages for this to work.  Here is an example off of Cisco's website.

gatekeeper 

zone local GK1 cisco.com 10.13.32.184

zone cluster local BGL-CL1 BGL-GK1 

element GK2 10.13.32.182 1719 

element GK3 10.13.32.183 1719 

! 

zone prefix GK1 9362* gw-priority 8 5850-GW4 GW1-5350 

zone prefix GK1 9362* gw-priority 2 GW2-3745 GW3-3845

zone prefix GK1 9845* gw-priority 6 5850-GW4 

zone prefix GK1 9845* gw-priority 4 GW3-3845 GW2-3745 GW1-5350

accounting 

timer cluster-element announce 10 

timer cluster-element resource-update 10 

no shutdown

call-routing hunt-scheme percentage-capacity-util 

server registration-port 1111



Chris Bomba

Original Message----------------------------------------------

From: "Hoa Thai Duy \(NGT\)" <hoathai at ngt.vn>
Subject: [cisco-voip] IOS gatekeeper Load Balancing?
To: <cisco-voip at puck.nether.net>
Message-ID: <009001c85bd9$87932f20$96b98d60$@vn>
Content-Type: text/plain; charset="us-ascii"

To the experts
I have 3662 running IOS 12.3T with GK enabled. 

I wonder if I can load balanced outgoing calls via different 02 GKs?
(weighted or fair balanced 1-1) 

Call1: MyGK (local zone) --> GK1 (remote zone1)
Call2: MyGK (local zone) --> GK2 (remote zone1, same zone)
Call3: MyGk (local zone)--> GK1 (remote zone1) ... so on ... 

I think sequencial and blast does not help here. Also, GK1 and GK2 is not Cisco Based (3rd party GK) 

Question: Is there any way for this scenario? DNS round-robin will help if I declare only one remote zone with DNS and I configure my BIND DNS Server to return multiple IP address to MyGk for load balancing? 

Brgds 

Thai Duy Hoa