3Com Switch 4800G 24-Port - Displaying and Maintaining Multicast Routing and Forwarding; Configuration Examples

Displaying and Maintaining Multicast Routing and Forwarding 709
Displaying and
Maintaining Multicast
Routing and
Forwarding
c
CAUTION:
■ The reset command clears the information in the multicast routing table or the
multicast forwarding table, and thus may cause failure of multicast
transmission.
■ When a routing entry is deleted from the multicast routing table, the
corresponding forwarding entry will also be deleted from the multicast
forwarding table.
■ When a forwarding entry is deleted from the multicast forwarding table, the
corresponding route entry will also be deleted from the multicast routing table.
Configuration
Examples
Changing an RPF Route Network requirements
■ PIM-DM runs in the network. All switches in the network support multicast.
To do… Use the command… Remarks
View the multicast
boundary information
display multicast boundary [ group-address
[ mask | mask-length ]] [interface
interface-type interface-number ]
Available in
any view
View the multicast
forwarding table
information
display multicast forwarding-table
[ source-address [ mask { mask | mask-length }] |
group-address [ mask { mask | mask-length }] |
incoming-interface { interface-type
interface-number | register } |
outgoing-interface {{exclude | include |
match } { interface-type interface-number |
register }} | statistics ] * [ port-info ]
Available in
any view
View the multicast routing
table information
display multicast routing-table
[ source-address [ mask { mask | mask-length }] |
group-address [ mask { mask | mask-length }] |
incoming-interface { interface-type
interface-number | register } |
outgoing-interface {{exclude | include |
match
} { interface-type interface-number |
register }}] *
Available in
any view
View the information of
the multicast static routing
table
display multicast routing-table static
[ config ] [ source-address { mask-length |
mask }]
Available in
any view
View the RPF route
information of the
specified multicast source
display multicast rpf-info source-address
[ group-address ]
Available in
any view
Clear forwarding entries
from the multicast
forwarding table
reset multicast forwarding-table
{{source-address [ mask { mask | mask-length }]
| group-address [ mask { mask | mask-length }] |
incoming-interface { interface-type
interface-number | register }} * | all }
Available in
user view
Clear routing entries from
the multicast routing table
reset multicast routing-table
{{source-address [ mask { mask | mask-length }]
| group-address [ mask { mask | mask-length }] |
incoming-interface { interface-type
interface-number | register }} * | all }
Available in
user view