Specifications

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Cisco TV CDS 2.5 ISA Software Configuration Guide
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Chapter 4 Configuring the CDS
Array Level Configuration
Configuring Cache Groups
A Cache Group consists of one or more Caching Nodes. Caching Nodes within a Cache Group work as
a team with regard to content caching, load distribution, and bandwidth usage. Cache Groups interact
with other Cache Groups by passing cache-fill requests among each other based on performance
qualification and cost considerations. If a Cache Group must give up a cache-fill task to another group,
Cache Group preferences set on the Stream to Cache Map page are followed.
Note The Cache Groups Setup page is part of the VVI feature and is displayed only on VVIMs.
A Caching Node can never be a member of more than one Cache Group.
When grouping Caching Nodes you should take into account network costs, bandwidth usage, and
geographic locations of Vaults, Caching Nodes, and Streamers. All Caching Nodes in a group are
considered to have the same cost to reach a destination.
To configure a Cache Group, do the following:
Step 1 Choose Configure > Array Level > Cache Groups Setup. The Cache Groups Setup page is displayed
(Figure 4-21).
Figure 4-21 Cache Groups Setup Page—CCP Streamers
Step 2 From the Select Cache Group to View/Edit drop-down list, choose Add New Cache Group and click
Display.
To edit a Cache Group, choose the Cache Group from the drop-down list and click Display.
Step 3 In the New Cache Group Name field, enter the name of the Cache Group and click Submit.
You can use only alphanumeric characters (0-9, a-z, A-Z), the dash (-), and the underscore (_) to create
a Cache Group name.
Step 4 Add the Caching Nodes to the Cache Group.