Gatekeeper delivering call to Avaya B server when Avaya A system is down.

[vvedavyasan]

Hi,

   We have a Cisco Gatekeeper with an Avaya server. Calls come through the Gatekeeper to this Avaya server. Now we recently added one more avaya server. What we require now is to deliver the call Avaya B server when the Avaya A server is down. Can someone please let me know what configuration needs to be done in Gatekeeper to achieve this ?

The Cisco Gatekeeper config is given below 

gatekeeper
 zone local GK pcb.com 10.238.1.2
 zone remote IN1-AVAYA-CM in1.pc.com 10.164.4.10 1719
 zone remote IN2-AVAYA-CM in2.pc.com 10.205.129.90 1719
 zone remote IN3-AVAYA-CM in3.pc.com 10.179.8.32 1719
 zone remote IN4-AVAYA-CM in4.pc.com 10.209.231.141 1719
 zone remote IN5-AVAYA-CM in5.pc.com 10.24.142.49 1719
 zone remote IN6-AVAYA-CM in6.pc.com 10.206.128.45 1719
 zone remote IN7-AVAYA-CM in7.pc.com 10.204.133.15 1719
 zone remote IN8-AVAYA-CM in8.pc.com 10.162.2.20 1719
 zone remote IN9-AVAYA-CM in9.pc.com 10.208.131.3 1719
 zone remote IN10-AVAYA-CM in10.pc.com 10.163.4.75 1719
 zone remote IN11-AVAYA-CM in11.pc.com 10.163.0.75 1719
 zone remote IN12-AVAYA-CM in12.pc.com 10.25.80.201 1719
 zone remote IN13-AVAYA-CM in13.pc.com 10.203.66.7 1719
 zone remote IN14-AVAYA-CM in14.pc.com 10.56.11.10 1719
 zone remote IN15-AVAYA-CM in15.pc.com 10.206.70.35 1719
 zone remote IN16-AVAYA-CM in16.pc.com 10.208.100.250 1719
 zone remote IN17-AVAYA-CM in17.pc.com 10.134.28.100 1719
 zone remote IN18-AVAYA-CM in18.pc.com 10.25.191.26 1719
 zone cluster local iWAN-IN-Cluster GK-PCB-IND
  element GK-PCB-INC 10.238.2.2 1719
 !
 zone prefix IN3-AVAYA-CM 131.....
 zone prefix IN3-AVAYA-CM 132.....
 zone prefix IN7-AVAYA-CM 171....
 zone prefix IN14-AVAYA-CM 141....
 zone prefix IN13-AVAYA-CM 1131....
 zone prefix IN13-AVAYA-CM 1132....
 zone prefix IN2-AVAYA-CM 121.....
 zone prefix IN4-AVAYA-CM 141....
 zone prefix IN15-AVAYA-CM 1151....
 zone prefix IN6-AVAYA-CM 161....
 zone prefix IN16-AVAYA-CM 2601....
 zone prefix IN9-AVAYA-CM 2631....
 zone prefix IN17-AVAYA-CM 390.....
 zone prefix IN5-AVAYA-CM 159....
 zone prefix IN5-AVAYA-CM 160....
 zone prefix IN12-AVAYA-CM 1121....
 zone prefix IN5-AVAYA-CM 151....
 zone prefix IN5-AVAYA-CM 152....
 zone prefix IN5-AVAYA-CM 153....
 zone prefix IN5-AVAYA-CM 154....
 zone prefix IN5-AVAYA-CM 155....
 zone prefix IN5-AVAYA-CM 156....
 zone prefix IN5-AVAYA-CM 157....
 zone prefix IN18-AVAYA-CM 1181....
 zone prefix IN5-AVAYA-CM 158....
 zone prefix IN18-AVAYA-CM 1182....
 zone prefix IN1-AVAYA-CM 111.....
 zone prefix IN10-AVAYA-CM 1101.....
 zone prefix IN11-AVAYA-CM 1111.....
 zone prefix IN8-AVAYA-CM 181.....
 lrq forward-queries add-hop-count
 bandwidth total default 10000000
 load-balance cpu 70 memory 70
 no shutdown

[Chris Deren]

You can add the another zone prefix for another zone with different priority:

zone prefix <gk_id> <e.164_pattern> gw-priority <0-10> command

http://www.cisco.com/c/en/us/support/docs/voice/h323/24462-gk-call-routing.html#t3

[vvedavyasan]

Hi Chris,

Thanks for your advice just to check if I understood it correct, I have to add

zone prefix IN1-AVAYA-CM 111.....gw-priority 1

zone prefix IN2-AVAYA-CM 111.....gw-priority 2

[Chris Deren]

Yes, however higher the gw-priority the more preferred it is, so gw-priority 2 would be preferred over 1:

http://www.cisco.com/en/US/docs/ios/12_3/vvf_r/vrg_z1_ps1839_TSD_Products_Command_Reference_Chapter.html

[vvedavyasan]

Hi Chris,

In this case it is asking for H323-ID 

zone prefix IN1-AVAYA-CM 111.....gw-priority 10 ?

WORD   H323-ID of gateway with this zone prefix priority 

What would this be in my case ?

When I stop with zone prefix IN1-AVAYA-CM 111.....gw-priority 10. It says incomplete command

[Chris Deren]

If you issue "show gatek end" does it show H323 IDs for the Avayas?

[sbmed]

please share with me you config, i have same problem