Troubleshooting Mld Snooping - H3C S3610-28P Operation Manual

Operation Manual – Multicast Protocol
H3C S3610&S5510 Series Ethernet Switches
3) Configuration on Switch C
# Enable MLD Snooping globally.
<SwitchC> system-view
[SwitchC] mld-snooping
[SwitchC-mld-snooping] quit
# Create VLAN 100, add Ethernet 1/0/1 through Ethernet 1/0/3 to VLAN 100, and
enable MLD Snooping in this VLAN.
[SwitchC] vlan 100
[SwitchC-vlan100] port ethernet 1/0/1 to ethernet 1/0/3
[SwitchC-vlan100] mld-snooping enable
4) Verify the configuration
# View the MLD message statistics on Switch C.
[SwitchC-vlan100] display mld-snooping statistics
Received MLD general queries:3.
Received MLDv1 specific queries:0.
Received MLDv1 reports:4.
Received MLD dones:0.
Sent
Received MLDv2 reports:0.
Received MLDv2 reports with right and wrong records:0.
Received MLDv2 specific queries:0.
Received MLDv2 specific sg queries:0.
Sent
Sent
Received error MLD messages:0.
Switch C received MLD general queries. This means that Switch A works as an
MLD-Snooping querier.

3.9 Troubleshooting MLD Snooping

3.9.1 Switch Fails in Layer 2 Multicast Forwarding
I. Symptom
A switch fails to implement Layer 2 multicast forwarding.
II. Analysis
MLD Snooping is not enabled.
III. Solution
1) Enter the display current-configuration command to view the running status of
MLD Snooping.
MLDv1 specific queries:0.
MLDv2 specific queries:0.
MLDv2 specific sg queries:0.
Chapter 3 MLD Snooping Configuration
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