Troubleshooting Mld; No Member Information On The Receiver-Side Router - 3Com MSR 50 Series Configuration Manual

1232 C 73: MLD C
HAPTER

Troubleshooting MLD

No Member Information
on the Receiver-Side
Router
ONFIGURATION
# Enable IPv6 multicast routing on Router B, enable MLD and IPv6 PIM-DM on
Ethernet1/0, and set the MLD version number to 2.
<RouterB> system-view
[RouterB] multicast ipv6 routing-enable
[RouterB] interface ethernet 1/0
[RouterB-Ethernet1/0] mld enable
[RouterB-Ethernet1/0] mld version 2
[RouterB-Ethernet1/0] pim ipv6 dm
[RouterB-Ethernet1/0] quit
# Enable IPv6 multicast routing on Router C, enable MLD and IPv6 PIM-DM on
Ethernet1/0, and set the MLD version number to 2.
<RouterC> system-view
[RouterC] multicast ipv6 routing-enable
[RouterC] interface ethernet 1/0
[RouterC-Ethernet1/0] mld enable
[RouterC-Ethernet1/0] mld version 2
[RouterC-Ethernet1/0] pim ipv6 dm
[RouterC-Ethernet1/0] quit
3 Verify the configuration
Carry out the display mld interface command to display the MLD configuration
and running information on each router interface. Example:
# View MLD information on Ethernet 1/0 of Router B.
[RouterB] display mld interface ethernet 1/0
Ethernet1/0 (FE80::200:5EFF:FE66:5100):
MLD is enabled
Current MLD version is 2
Value of query interval for MLD(in seconds): 125
Value of other querier present interval for MLD(in seconds): 255
Value of maximum query response time for MLD(in seconds): 10
Querier for MLD: FE80::200:5EFF:FE66:5100 (this router)
Symptom
When a host sends a message for joining IPv6 multicast group G, there is no
member information of multicast group G on the immediate router.
Analysis
The correctness of networking and interface connections directly affects the
■
generation of IPv6 group member information.
IPv6 multicast routing must be enabled on the router.
■
If the mld group-policy command has been configured on an interface, the
■
interface cannot receive report messages that fail to pass filtering.