Cisco Cisco Customer Voice Portal 8.0(1)

In this application of CSS, the engine is used primarily to direct initial session requests for a
particular type of service. There are four types of services:

•

http prompts

•

ASR/TTS

•

Unified CVP Call Server

•

VXML Server

The following general approach will apply to configuring each Unified CVP component type
for use with CSS. Specific component-type configuration is covered in the following sections.

Services—One CSS Service is configured for each Unified CVP component that needs CSS
load balancing. For general step-by-step guidelines for configuring Services, refer to the CSS
Basic Configuration Guide.

Rules—A content rule should be established for each Unified CVP component type. In order
to define a content rule, a content owner must be defined on the Content Switch. (Refer to the
CSS Basic Configuration Guide.) Media Servers, Call Servers, ASR/TTS Servers and VXML
Servers might each have their own content rules defined. For general step-by-step guidelines
for configuring content rules, refer to the CSS Basic Configuration Guide.

Groups—It may be necessary to define source groups for each service. Group configuration
will vary depending upon whether a single VLAN or multiple VLANs are used for the CSS’
inbound and outbound traffic from the voice gateway and the Unified CVP component servers.
If the servers and the voice gateway clients are on the same VLAN, then destination services
will need to be specified. This configuration is sometimes referred to as a ‘one-arm’ configuration
because all traffic passes through one interface. Refer to the online documentation for the Cisco
Content Switch entitled, “How to Configure the CSS to Load Balance Using One Interface”.
At the time of this writing, the document was located here:

Also, refer to the CSS Basic Configuration Guide for help determining whether your setup will
require destination services. The examples in the next section incorporate the use of destination
services.

Keepalives—Each Unified CVP component type will also have a varying type of keepalive
defined. The CSS keepalive definitions will allow for an appropriate method of determining
whether the component is functional and able to participate in receiving requests.

CSS Configuration for Media Servers

Media Servers are standard web servers that are responsible for serving Unified CVP prompt
files to the voice gateway.

Configuration and Administration Guide for Cisco Unified Customer Voice Portal Release 4.1(1)