3Com 10014299 manual Follow these steps, Display pim neighbor command can be used to check whether

Troubleshooting PIM-SM 521

[RouterB-Serial1] pim sm [RouterB] interface serial 2 [RouterB-Serial2] pim sm

b Configure the candidate BSR [RouterB-pim]c-bsr serial 0 30 2 c Configure the candidate RP

[RouterB-pim] acl 5

[RouterB-acl-5]rule permit source 225.0.0.0 255.0.0.0

[RouterB-acl-5] pim

[RouterB-pim] c-rp serial 0 accept-policy 5 d Configure PIM domain boundary [RouterB-Serial2] pim bsr-boundary

When the Serial 2 has been configured to be BSR, Router D will not be able to receive the BSR information sent by Router B, which will be excluded from this PIM domain.

3 Configure the Router C

a Enable PIM-SM protocol

[RouterC] multicast routing-enable

[RouterC] interface ethernet 0 [RouterC-Ethernet0]pim sm [RouterC] interface serial 0 [RouterC-Serial0]pim sm [RouterC] interface serial 1 [RouterC-Serial1]pim sm

Suppose Host A is the receiver of 225.0.0.1. Host B now begins sending data with the destination address 225.0.0.1. Router A receives the multicast data sent by Host B via Router B. When the multicast data rate of Host B exceeds 10kbps, Router A will be added to the shortest path tree, and the multicast data message sent by Host B will be received directly from Router C.

Troubleshooting	The router cannot correctly establish the multicast routing table.
PIM-SM	Follow these steps:
	■	Use the PIM-SM protocol to configure RP and BSR. First, use the display pim
		bsr-infocommand to check whether there is BSR information. If there is no
		such information, check whether there is unicast routing to the BSR. Then, use
		the display pim rp-infocommand to check whether the RP information is
		correct. If there is no RP information, check the unicast routing again.
	■	The display pim neighbor command can be used to check whether the
		neighbors have discovered each other.