Cisco Cisco Customer Voice Portal 8.0(1)

D-15

Cisco Customer Voice Portal (CVP) Release 3.1(0) Configuration and Administration Guide

Appendix D Configuring Cisco Content Services Switch (CSS) for Use with Customer Voice Portal

CSS Redundancy

Example D-12 Defining Customer Voice Portal VoiceXML Servers Group

group vxml_group1

vip address 10.86.130.165

add destination service CVPVoicexml1

add destination service CVPVoicexml2

active

CSS Redundancy

CSS supports several types of failover mechanisms. The Virtual IP redundancy mechanism will allow
for a rapid failover from a defined Master CSS to it’s backup using VRRP. This failover takes less than
3 seconds and may or may not additionally incorporate the use of ASR. Customer Voice Portal
transactions to servers do not require a stateful connection to the gateway. If the CSS fails during a
prompt, the vxml documents that drive Customer Voice Portal will retry and re-stream the prompt from
the new CSS access.

For this reason, general VIP redundancy is implemented. The sample below shows the redundant section
for each of the two CSSs.

CSS1:

!************************** CIRCUIT **************************

circuit VLAN1

ip address 10.1.1.100 255.255.255.0

ip virtual-router 1 priority 230 preempt

ip redundant-interface 1 10.1.1.200

ip redundant-vip 1 10.1.1.4

ip redundant-vip 1 10.1.1.8

ip redundant-vip 1 10.1.1.12

CSS2: