
Configuring IP Multicasting and Multimedia Services
4-10 117355-A Rev. A
Setting the Update Interval
Periodically, each multicasting router issues full or partial routing information on
each DVMRP circuit, using DVMRP report messages. This routing information
represents the sending router’s cost to reach the specified network. (The cost is the
sum of the hop metrics along the shortest path to the given source network.)
You can use Site Manager to
• Specify how often routing messages containing complete routing tables are
sent.
• Specify the minimum amount of time between triggered updates. Triggered
updates are sent when routing information changes. Issuing a full update
restarts the triggered update timer. Therefore, the triggered update interval
you specify must be shorter than the full update interval you set.
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
choose Protocols.
The Protocols menu opens.
2. Choose IP. The IP menu opens.
3. Choose Multicast. The Multicast menu opens.
4. Choose DVMRP. The DVMRP menu opens.
5. Choose Global. The DVMRP Global Configuration
window opens.
6. Set the following parameters:
• Full Update Interval
• Triggered Update Interval
Click on Help or see the parameter
descriptions beginning on page A-2.
7. Click on Save. You return to the Configuration Manager
window.
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