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2.1.1.1
Vlan1
Switch#
Displayed information
Interface (the former)
Owner
Vif
Hello Interval
Neighbor-Address
Interface (the latter)
Uptime
Expires
19.3.4.5
debug ip pim
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
EES4710BD 10 Slots L2/L3/L4 Chassis Switch
00:26:23
00:01:39
Explanation
Interface name and interface IP
Multicast routing protocol of the interface
Corresponding virtual interface index to the interface
The HELLO packet interval configured on the interface (in seconds)
Neighbor address
The neighbor interface discovered
The up time of the neighbor since discovery
The remaining time before considering the neighbor to be invalid
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Table of Contents
Troubleshooting
