Displaying And Maintaining Ipv6 Multicast Routing And Forwarding - HP 4800G Series Configuration Manual

table based on the actual networking situation and the performance requirements. If the configured
maximum number of IPv6 multicast forwarding table entries is smaller than the current value, the
entries in excess will not be immediately deleted; instead they will be deleted by the IPv6 multicast
routing protocol running on the router. The router will no longer install new IPv6 multicast forwarding
entries until the number of existing IPv6 multicast forwarding entries comes down below the configured
value.
When forwarding IPv6 multicast traffic, the router replicates a copy of the IPv6 multicast traffic for each
downstream node and forwards the traffic, and thus each of these downstream nodes forms a branch of
the IPv6 multicast distribution tree. You can configure the maximum number of downstream nodes
(namely, the maximum number of outgoing interfaces) for a single entry in the IPv6 multicast forwarding
table to lessen burden on the router for replicating IPv6 multicast traffic. If the configured maximum
number of downstream nodes for a single IPv6 multicast forwarding entry is smaller than the current
number, the downstream nodes in excess will not be deleted immediately; instead they must be deleted
by the IPv6 multicast routing protocol. The router will no longer install new IPv6 multicast forwarding
entries for newly added downstream nodes until the number of existing downstream nodes comes
down below the configured value.
Follow these steps to configure the IPv6 multicast forwarding table size:
To do...
Enter system view
Configure the maximum
number of entries in the IPv6
multicast forwarding table
Configure the maximum
number of downstream nodes
for a single IPv6 multicast
forwarding entry

Displaying and Maintaining IPv6 Multicast Routing and Forwarding

To do...
Display the IPv6 multicast boundary
information
Display the information of the IPv6
multicast forwarding table
Display the information of the IPv6
multicast routing table
Use the command...
system-view
multicast ipv6
forwarding-table route-limit
limit
multicast ipv6
forwarding-table
downstream-limit limit
Use the command...
display multicast ipv6 boundary
[ ipv6-group-address [ prefix-length ] |
interface interface-type interface-number ]
display multicast ipv6 forwarding-table
[ ipv6-source-address [ prefix-length ] |
ipv6-group-address [ prefix-length ] |
incoming-interface { interface-type
interface-number | register } |
outgoing-interface { { exclude | include |
match } { interface-type interface-number |
register } } | statistics | slot slot-number ] *
[ port-info ]
display multicast ipv6 routing-table
[ ipv6-source-address [ prefix-length ] |
ipv6-group-address [ prefix-length ] |
incoming-interface { interface-type
interface-number | register } |
outgoing-interface { { exclude | include |
match } { interface-type interface-number |
register } } ] *
1-6
Remarks
—
Optional
512 by default.
Optional
128 by default.
Remarks
Available in
any view
Available in
any view
Available in
any view