NEC IP8800/S3600, IP8800/S6600, IP8800/S2400 manual Multicast Relay by Igmp snooping Is Disabled

3.Troubleshooting Functional Failures in Operation

3.5.4Multicast Relay by IGMP snooping Is Disabled

If multicast relay is disabled when using IGMP snooping, follow the analysis flow to identify the symptom using steps shown in the table below and isolate the problem.

Figure 3-5: Analysis Flow

Analysis Flow

						Y	see the manual "Message Log
		there log					Reference" and perform the
							actions described in [Action]
							associated with each log
				N			message.
						N		Verify that the settings of
		Is filter setting correct?						filter and QoS Control are
								correct.
			Y
						Y	Verify that the settings for
		Is IPv4 multicast used?					using IPv4 multicast at the
							same time are correct.
			N			N
		Is there IGMP querier?					Set IP address on VLAN,
							and add the querier
							function in IGMP snooping.
			Y
This system may be the
	IGMP querier.								Unresolve
		Is the device that				Y
							Set the connecting port as
		multicast data connected						a multicast router port.
		to the same
		VLAN?
				N
	Y	Is the data relayed							Unresolved
		the same
			N			N
								Is it a relay within
								the same VLAN?
									Y
Verify that the configuration of		Refer to "3.8 IPv4 Multicast						Verify that other systems
IGMP snooping is properly set in		Routing Communication						are set to relay the
the corresponding VLAN.					Failure."			multicast data.

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