Troubleshooting Ipv6 Multicast Policy Configuration; Abnormal Termination Of Ipv6 Multicast Data - HP 4800G Series Configuration Manual

To do...
Display the RPF route information of
the specified IPv6 multicast source
Clear forwarding entries from the
IPv6 multicast forwarding table
Clear routing entries from the IPv6
multicast routing table
The reset command clears the information in the IPv6 multicast routing table or the multicast
forwarding table, and thus may cause transmission failure of IPv6 multicast information.
When a routing entry is deleted from the IPv6 multicast routing table, the corresponding forwarding
entry will also be deleted from the IPv6 multicast forwarding table.
When a forwarding entry is deleted from the IPv6 multicast forwarding table, the corresponding
routing entry will also be deleted from the IPv6 multicast routing table.

Troubleshooting IPv6 Multicast Policy Configuration

Abnormal Termination of IPv6 Multicast Data

Symptom
A host sends an MLD report announcing its joining an IPv6 multicast group (G). However, there is
no member information about the IPv6 multicast group (G) on the immediate router. The
intermediate router can receive IPv6 multicast packets successfully, but the packets cannot reach
the stub network.
The interface of the intermediate router receives the IPv6 multicast packets, but there is no
corresponding (S, G) entry in the IPv6 PIM routing table.
Analysis
The multicast ipv6 boundary command is used to filter IPv6 multicast packets received on an
interface. If an IPv6 multicast packet fails to match the IPv6 ACL rule of this command, IPv6 PIM
will create no routing entry.
In addition, the source-policy command in IPv6 PIM is used to filter received IPv6 multicast
packets. If an IPv6 multicast packet fails to match the IPv6 ACL rule of this command, IPv6 PIM will
not create a routing entry, either.
Solution
Use the display current-configuration command to display the IPv6 ACL rule configured on the
multicast forwarding boundary. Change the IPv6 ACL rule used in the multicast ipv6 boundary
Use the command...
display multicast ipv6 rpf-info
ipv6-source-address [ ipv6-group-address ]
reset multicast ipv6 forwarding-table
{ { ipv6-source-address [ prefix-length ] |
ipv6-group-address [ prefix-length ] |
incoming-interface { interface-type
interface-number | register } } * | all }
reset multicast ipv6 routing-table
{ { ipv6-source-address [ prefix-length ] |
ipv6-group-address [ prefix-length ] |
incoming-interface { interface-type
interface-number | register } } * | all }
1-7
Remarks
Available in
any view
Available in
user view
Available in
user view