Troubleshooting pim – H3C Technologies H3C S3600 Series Switches User Manual
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Vlan-interface103, Protocol 0x100: SPT, timeout in 135 sec
(10.110.5.100, 225.1.1.1)
Protocol 0x20: PIMSM, Flag 0x4: SPT
Uptime: 00:03:03, Timeout in 27 sec
Upstream interface: Vlan-interface105, RPF neighbor: 192.168.4.2
Downstream interface list:
Vlan-interface102, Protocol 0x200: SPT, timeout in 147 sec
Vlan-interface103, Protocol 0x200: SPT, timeout in 145 sec
Matched 1 (S,G) entry, 1 (*,G) entry, 0 (*,*,RP) entry
Troubleshooting PIM
Symptom: The router cannot set up multicast routing tables correctly.
Solution: You can troubleshoot PIM according to the following procedure.
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Make sure that the unicast routing is correct before troubleshooting PIM.
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Because PIM-SM needs the support of RP and BSR, you must execute the display pim bsr-info
command to see whether BSR information exists. If not, you must check whether there is any
unicast route to the BSR. Then, use the display pim rp-info command to check whether the RP
information is correct. If RP information does not exist, you must check whether there is any unicast
route to RP.
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Use the display pim neighbor command to check whether the neighboring relationship is
correctly established.