Multicast Forwarding By Mld Snooping Is Not Possible - Alaxala AX6700S series Troubleshooting Manual

No. Items to check and commands
4 Use the
show igmp-snooping
command to check the IGMP
snooping configuration.
5 Use the
show igmp-snooping
command with the
parameter to check the IPv4
multicast group address.
# If the Switch is the IGMP querier, the same address is displayed for
. If any other device is the IGMP querier, the address displayed for
IP Address
is not the same as the address displayed for
system

3.6.5 Multicast forwarding by MLD snooping is not possible

If multicast forwarding is impossible when MLD snooping is used, use the following analysis
flowchart to determine the problem and isolate the cause.
Check the following:
• To check whether the IGMP querier that monitors the group members
exists, make sure one of the following messages is displayed.
(1) If the IGMP querier exists, the IP address of the IGMP querier is
displayed:
(2) If the IGMP querier does not exist, nothing is displayed for
querying system:
• If the Switch is the IGMP querier, make sure the IP address has been set
for the VLAN.
(1) If the IP address has been set for the VLAN, the following message
is displayed:
(2) If the IP address has not been set for the VLAN, nothing is displayed
for
IP Address
• If a multicast router is connected, check the
Check the following:
• Make sure the joined IPv4 multicast group address is displayed by the
group
show igmp-snooping group
3. Troubleshooting Functional Failures During Operation
Action
IGMP querying system: 192.168.11.20*
IGMP querying system:
IP Address: 192.168.11.20*
:
IP Address:
> show igmp-snooping 100
Date 2005/05/15 15:20:00
VLAN 100:
IP Address:192.168.11.20
IGMP querying system : 192.168.11.20
Port (2): 0/1,0/3
Mrouter-port:0/1
Group Counts: 3
command.
> show igmp-snooping group 100
Date 2005/05/15 15:20:00
VLAN 100 Group counts:3
Group Address
224.10.10.10 0100.5e0a.0a0a
Port-list 0/1-3
225.10.10.10 0100.5e0a.0a0a
Port-list 0/1-2
239.192.1.1 0100.5e40.1606
Port-list 0/1
IP Address
Mrouter-port
Querier : enable
MAC Address
IGMP querying system
IGMP querying
.
IGMP
setting.
and
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