Monitoring and Troubleshooting PIM

To log information about PIM errors and events using the Portal:

In the tree view, click Advanced Routing > Routing Options.
In the Configuration tab, select Filter Visible Tables Below and select PIM.
In the option variables area, do one of:
- Double-click an option.
- Select an option (to select multiple options, use Shift-Click) and click Activate.
Click Apply at the top of the page

To log information about PIM errors and events using the CLI:

Use these commands to monitor and troubleshoot PIM.

These commands apply to both dense-mode and sparse-mode PIM:

show pim

interfaces

interface <if_name>

neighbors

neighbor <ip_address>

memory

timers

stats

summary

These commands apply only to sparse-mode PIM:

show pim

bootstrap

candidate-rp

joins

rps

sarse-mode-stats

group-rp-mapping <mcast_address>

Dense Mode and Sparse Mode Parameters

Parameter	Description
`interfaces` `interface` <if_name>	The interfaces that are running PIM, their status, and their mode. This command also displays the interface and its DR priority and the number of PIM neighbors on the interface.
`neighbors`	The IP address of each PIM neighbor and the interface on which the neighbor is present. This command also displays the neighbor’s DR priority, generation ID, holdtime and the time the neighbor is set to expire based on the holdtime received in the most recent hello message.
`neighbor` <ip_address>	Use this command to verify whether a PIM neighbor supports DR Priority. For neighbors that advertise a DR election priority value, the following message appears in the summary: `DRPriorityCapable Yes`
`stats`	The number of different types of PIM packets received and transmitted and any associated errors.
`memory`
`timers`
`summary`

Sparse Mode Parameters

Parameter	Description
`bootstrap`	The IP address and state of the Bootstrap router.
`candidate-rp`	The state of the Candidate Rendezvous Point state machine.
`joins`	PIM’s view of the join-prune (*, G and S, G) state, including RP for the group, incoming, and outgoing interface(s), interaction with the multicast forwarding cache and the presence of local members. To view the equivalent information for dense-mode PIM, use the show mfc cache command.
`rps`	The active RP-set, including the RP addresses, their type (or source of information about them) and the groups for which they are configured to act as RP.
`group-rp-mapping <`group-address`>`	The RP selected for a particular group based on information from the active RP-set.
`sparse-mode stats`	Error statistics for multicast forwarding cache (MFC); Bootstrap Router (BSR) messages; Candidate Rendezvous Point (CRP) advertisements; and the Internet Group Management Protocol (IGMP).

MFC Commands and Trace Options

To log multicast errors and events, use the show mfc commands or the MFC Trace options in the Portal or the CLI.

show mfc {cache | interface}

Parameter	Description
`cache`	Multicast source and group forwarding state by prefix.
`interface`	Multicast source and group forwarding state by interface.