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5 debug ip pim, 6 pim-dm troubleshooting help – Accton Technology ES4710BD User Manual

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467

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ES4710BD 10 Slots L2/L3/L4 Chassis Switch

2.1.1.1 Vlan1 00:26:23 00:01:39
Switch#

Displayed information

Explanation

Interface (the former)

Interface name and interface IP

Owner

Multicast routing protocol of the interface

Vif Corresponding

virtual

interface index to the interface

Hello Interval

The HELLO packet interval configured on the interface (in seconds)

Neighbor-Address Neighbor

address

Interface (the latter)

The neighbor interface discovered

Uptime

The up time of the neighbor since discovery

Expires

The remaining time before considering the neighbor to be invalid

19.3.4.5 debug ip pim

z

Command: debug ip pim

Function: Enables the debugging function for displaying detailed PIM information; the “no” format

of this command disables this debug function.

Parameters: N/A.

Default: Disabled.

Command mode: Admin Mode

Usage Guide: If detailed information about PIM packets etc. is required, this debugging command

can be used.

Example:

Switch # debug ip pim

00:15:45: PIM: Send v2 Hello on vlan1, holdtime 105

00:15:45: PIM: Send v2 Hello on vlan1, holdtime 105

00:15:45: PIM: Received v2 Hello on vlan1 from 2.1.1.2, holdtime 105

19.3.4.6 PIM-DM

Troubleshooting

Help

In configuring and using PIM-DM protocol, the PIM-DM protocol may fail to run properly due to

reasons such as physical connection failure or wrong configurations. The user should ensure the

following:
—

Good condition of the physical connection.

—

All interface and link protocols are in the UP state (use “show interface” command).

—

Next, enable PIM-DM protocol on the interface (use the “ip pim dense-mode” command).

—

Multicast protocols use unicast routes to perform RPF check, for this reason, the unicast route

correctness must be ensured.

If PIM-DM problems persist after the above-mentioned procedures, please run debugging

commands such as “debug ip pim”, and copy the output debug information in 3 minute and send the