Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
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3 Make sure the settings for using
IPv4 multicast are correct.
Check the following:
• For AX3800S or AX3600S series switches, check whether the setting of
the
swrt_multicast_table configuration command is applied.
If the swrt_multicast_table configuration command is correctly
set,
On is displayed for Current selected swrt_multicast_table:
when the show system command is executed.
Current selected swrt_multicast_table: On
If Off is displayed when the swrt_multicast_table configuration
command has been set, the Switch must be restarted.
• For AX3800S or AX3600S series switches, if both IPv4 multicast and
IGMP snooping are used simultaneously, make sure that IPv4 multicast
is used for the target VLAN.
If the IPv4 multicast is used for the target VLAN,
On is displayed for
IPv4 Multicast routing: when the show igmp-snooping
command is executed.
IPv4 Multicast routing: On
• If the static group participation functionality of IPv4 multicast is used for
the target VLAN, set the multicast router port for ports that use the
multicast communication.
• If the number of entries registered for IGMP snooping exceeds the
capacity limit, multicast relay entries of IPv4 multicast generated
subsequently are for communications only for multicast router ports.
Configure the network so that the number of entries registered for IGMP
snooping does not exceed the capacity limit.
If the number of entries registered for IGMP snooping exceeds the
capacity limit, the following log information is displayed:
IGMP snooping: The number of the IGMP snooping entry
exceeded the capacity of this system.
No. Items to check and commands Action