Avaya Configuring IP Multicasting and Multimedia Services Uživatelský manuál stáhnout pdf (Strana 207)

100

101

Customizing Protocol Independent Multicast

117355-D Rev 00

6-21

To modify the last-hop threshold, complete the following tasks:

Modifying the Rendezvous Point Threshold

By default, the RP router switches from the shared tree to the shortest-path tree

when the source sends data packets at a rate that exceeds 1024 bytes per second.

You can modify the rendezvous point threshold as follows:

• Change the data threshold rate (bytes per second).

• Specify a value from 0 through 64 for the RP data threshold to force the RP to

immediately switch from the shared tree to the SPT upon receiving the first

packet from the source.

• Disable the RP data threshold to ensure that PIM routers continue to receive

multicast traffic over the shared tree.

For more information about switching from the shared tree to the SPT, see “How

the RP Switches to the Shortest-Path Tree” on page 6-15.

Site Manager Procedure

You do this System responds

1. In the Configuration Manager window,

choose

Protocols

The Protocols menu opens.

2. Choose

. The IP menu opens.

3. Choose

PIM

. The PIM menu opens.

4. Choose

Global

. The PIM Global Configuration window

opens.

5. Set the

following parameters:

• Last Hop Threshold

• Last Hop Data Threshold

Click on

Help

or see the parameter

descriptions beginning on page A-38.

6. Click on

. You return to the Configuration Manager

window.

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