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Now check the RP status on the routers. This recipe configured RouterA and<br />

RouterG as RPs. We check RouterA first:<br />

aviva@RouterA> show pim rps inet<br />

Instance: PIM.master<br />

Address family INET<br />

RP address Type Holdtime Timeout Active groups Group prefixes<br />

192.168.13.1 bootstrap 150 None 3 224.0.0.0/4<br />

192.168.13.1 static 0 None 3 224.0.0.0/4<br />

The first line shows that this router (192.168.13.1) has been elected as the RP by the<br />

bootstrap router. The statically configured RP, shown in the second line of the output,<br />

is inactive because its hold time, which is how long the RP should remain active, is 0.<br />

This recipe also configures RouterG as a candidate RP, so check its RP status:<br />

aviva@RouterG> show pim rps inet<br />

Instance: PIM.master<br />

Address family INET<br />

RP address Type Holdtime Timeout Active groups Group prefixes<br />

192.168.13.1 bootstrap 150 150 3 224.0.0.0/4<br />

192.168.19.1 static 0 None 0 224.0.0.0/4<br />

The first line in the output confirms that RouterA (192.168.13.1) is the RP, as elected<br />

by the bootstrap router. The second line of the output confirms that we statically<br />

configured RouterG to be an RP, but the hold-time value of 0 shows you that this<br />

configuration is not active.<br />

See Also<br />

Recipes 16.2 and 16.3<br />

16.5 Filtering PIM-SM Bootstrap Messages<br />

Problem<br />

Your PIM-SM domain uses bootstrap routers to elect RPs. Some of the routers have<br />

interfaces that connect to other PIM-SM domains. You need to ensure that Bootstrap<br />

messages do not cross the domain boundary.<br />

Solution<br />

On router interfaces that connect to other PIM-SM domains, create filters to prevent<br />

bootstrap router messages from crossing domain boundaries:<br />

[edit policy-options]<br />

aviva@RouterB# set policy-statement pim-bootstrap-import from interface se-0/0/3<br />

aviva@RouterB# set policy-statement pim-bootstrap-import then reject<br />

aviva@RouterB# set policy-statement pim-bootstrap-export from interface se-0/0/3<br />

aviva@RouterB# set policy-statement pim-bootstrap-export then reject<br />

Filtering PIM-SM Bootstrap Messages | 591<br />

This is the Title of the Book, eMatter Edition<br />

Copyright © 2008 O’Reilly & Associates, Inc. All rights reserved.

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