Lynksis router validating
This section contains the following tasks: •Using PIM-Enabled Routers to Test IP Multicast Reachability (optional) •Verifying IP Multicast Operation in a PIM-SM or a PIM-SSM Network (optional) Perform the following tasks to use PIM-enabled routers to test IP multicast reachability.
If all the PIM-enabled routers and access servers that you administer are members of a multicast group, pinging that group causes all routers to respond, which can be a useful administrative and debugging tool.
•Use this command to display information about the multicast packet rate for active sources sending to groups on routers along the SPT.
•Use this command to display information about the multicast packet rate for active sources sending to groups on the first hop router.
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Displays the rate that active sources are sending to multicast groups, in kilobits per second (kb/s).
Before you verify IP multicast operation, you should understand the following concept: •Guidelines for Verifying IP Multicast Operation in a PIM-SM and PIM-SSM Network Environment When you verify the operation of IP multicast in a PIM-SM network environment or in an PIM-SSM network environment, a useful approach is to begin the verification process on the last hop router, and then continue the verification process on the routers along the SPT until the first hop router has been reached.
The goal of the verification is to ensure that IP multicast traffic is being routed properly through an IP multicast network.
To reach links to specific feature documentation in this module and to see a list of the releases in which each feature is supported, use the "Feature Information for Verifying IP Multicast Operation" section. •Prerequisites for Verifying IP Multicast Operation •Restrictions for Verifying IP Multicast Operation •Information About Verifying IP Multicast Operation •How to Verify IP Multicast Operation •Configuration Examples for Verifying IP Multicast Operation •Additional References •Feature Information for Verifying IP Multicast Operation •Before performing the tasks in this module, you should be familiar with the concepts described in the "" module.
Finding Support Information for Platforms and Cisco IOS and Catalyst OS Software Images Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS software image support. •For PIM-SM, this module assumes that the shortest path tree (SPT) threshold for PIM-enabled routers is set to the value of zero (the default) and not infinity.
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•Use this command to confirm that the IGMP cache is being properly populated on the last hop router for the groups that receivers on the LAN have joined.