Cisco Cisco Unified Customer Voice Portal 11.0(1)

Page of 561
content APPSERVERS
protocol tcp
port 8000 
add service appserver1
add service appserver2
primarySorryServer appserver3
vip
address 10.1.1.8
CSS Configuration for Call Servers: Keepalive Method
For Call Servers, a CSS scripted keepalive should be used. Included within the Unified CVP
Call Server Installation’s ‘Downloads’ directory is a file called ‘ASKeepalive.txt’. This file is
a scripted keepalive for use with CSS. The scripted keepalive will utilize the Call Server’s
built-in heartbeat mechanism to validate that the AS is running at the Application Level. This
will ensure that, if an AS is taken out of service, CSS will recognize this state change and mark
the CSS service unavailable.
Load the CSS Call Server Keepalive Script into the /scripts directory of the CSS by copying it
from a tftp-enabled server onto the Content Switch. During the copy process, name the script:
ap-kal-httpvxml
Assign the keepalive script to each of the Call Server services. The ap-kal-httpvxml keepalive
script accepts one parameter, which is the ipaddress of the Call Server for which the service is
configured.
keepalive type script ap-kal-httpvxml "[ipaddress]"
where [ipaddress] is replaced with the address of the service you are configuring.
Note: For detailed instructions on implementing scripted keepalives for CSS, refer to the CSS
Basic Configuration Guide
.
CSS Configuration for Call Servers: Keepalive Times
Because these services are directly involved in processing voice calls, the shortest possible
failover detection is desired. Set the following keepalive parameters:
keepalive maxfailure 1
Note: If no keepalive retry period is specified, the default value of 5 seconds (recommended
value) is used.
CSS Configuration for Call Servers: Groups
Define a group for the participating Call Servers if your configuration requires source groups
(see the discussion of Groups in the "
" section for details).
Example of Call Servers Groups:
Configuration and Administration Guide for Cisco Unified Customer Voice Portal Release 4.1(1)
480
Chapter 15: - Configuring High Availability for Unified CVP
CSS Configuration for Call Servers