NEC IP8800/S3600, IP8800/S6600, IP8800/S2400, IP8800/S6700, IP8800/S6300 manual BSR check items

3.Troubleshooting Functional Failures in Operation

No.	Troubleshooting Steps and Command	Action
4	Confirm in the configuration that suppression of protocol	If suppression of protocol packet and multicast packet relay is
	packet and multicast packet relay through filtering, etc. is not	provided, correct the configuration.
	provided on the interface that allows PIM and IGMP to run.
	show running-config
5	Check the PIM neighboring information.	If the neighboring router is not displayed, check the following:
	show ip pim neighbor	• Confirm that PIM is running on the interface connected to
		the neighboring router using the show ip pim
		interface command.
		• Verify the settings of the neighboring router.
6	Check to see if the unicast route to the multicast data sender	If the unicast route does not exist, see "3.7 IPv4 Unicast
	exists.	Routing Communication Failure."
	show ip route
7	Confirm that PIM is running on the interface to the next hop	If PIM is not running, check the configuration. Set PIM to run
	address for the multicast data sender.	on the interface connected to the next hop address for the
	show ip pim interface	multicast data sender.
8	Confirm that the PIM-SSM group addresses do not contain the	If the PIM-SSM group addresses contain the relay target group
	relay target group address, referring to the configuration.	address, correct the configuration.
	show running-config
9	Confirm that BSR is determined. However, this confirmation	If BSR is not determined, check to see if the unicast route to
	is not required if the rendezvous point for the relay target	BSR exists. If the unicast route does not exist, see "3.7 IPv4
	group address is a static rendezvous point.	Unicast Routing Communication Failure."
	show ip pim bsr	If the unicast route exists, check the BSR setting. If the BSR is
		this system, see "(2)BSR check items."
10	Confirm that the rendezvous point is determined.	If the rendezvous point is not determined, check to see if the
	show ip pim rp-mapping	unicast route to the rendezvous point exists. If the unicast
		route does not exist, see "3.7 IPv4 Unicast Routing
		Communication Failure."
		If the unicast route exists, check the rendezvous point setting.
		If the rendezvous point is this system, see "(3)Rendezvous
		point router check items."
11	Confirm that the rendezvous point group addresses contain the	If the relay target group address is not contained, check the
	relay target group address.	rendezvous point setting. If the rendezvous point is this
	show ip pim rp-mapping	system, see "(3)Rendezvous point router check items."
12	Confirm that the multicast relay entry exists.	If the multicast relay entry does not exist, confirm that
	show ip mcache	multicast data has arrived at the upstream port. If multicast
		data has not arrived, check the setting of the multicast sender
		or upstream router.
13	Confirm that the multicast relay routing information exists.	If the multicast routing information does not exist, check the
	show ip mroute	setting of the downstream router.
14	Check to see if multicast routing information or multicast	When warning is output, confirm that unexpected multicast
	forwarding entry exceeds the upper limit.	routing information or unexpected multicast forwarding entry
	Multicast routing information:	has not been created. If much of the negative cache exists in
	show ip mroute	multicast forwarding entry, confirm that there is no terminal
	Multicast forwarding entry:	transmitting unnecessary packets.
	show ip mcache
	netstat multicast

(2) BSR check items

The table below shows the items to be checked when this system is BSR in the IPv4 PIM-SM network configuration.

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