Displaying And Debugging Common Multicast Configuration - 3Com 8807 Configuration Manual

440 C 41: C
HAPTER OMMON
Displaying and
Debugging Common
Multicast
Configuration
M C
ULTICAST ONFIGURATION
After the above configuration, execute display command in any view to display
the running of the multicast configuration, and to verify the effect of the
configuration.
Execute debugging command in user view for the debugging of multicast.
Table 431 Display and Debug Common Multicast Configuration
Operation
Display the multicast
routing table
Display the multicast
forwarding table
View port-specific multicast
forwarding table
ninformation
View IP multicast group and
MAC multicast group
information of all VLANs or
a specific VLAN
Enable multicast packet
forwarding debugging
Disable multicast packet
forwarding debugging
Enable multicast
forwarding status
debugging
Disable multicast
forwarding status
debugging
Enable multicast kernel
routing debugging
Disable multicast kernel
routing debugging
The multicast routing tables can be layered as follows:
Each multicast routing protocol has a multicast routing table of itself.
■
All the multicast routing tables can be summarized into the multicast kernel
■
routing tables.
The multicast kernel routing tables should keep consistent with the multicast
■
forwarding tables which actually control the forwarding of the multicast data
packets.
The multicast forwarding tables are mainly used for debugging. Usually, users can
view the multicast kernel routing tables to get the required information.
Command
display multicast routing-table [ group-address [ mask { mask
| mask-length } ] | source-address [ mask { mask | mask-length } ]
| incoming-interface { vlan-interface vlan-interface-number |
register } ]*
display multicast forwarding-table [ group-address [ mask {
mask | mask-length } ] | source-address [ mask { mask |
mask-length } ] | incoming-interface { interface-type
interface-number | null NULL-interface- number | register } ]*
display mpm forwarding-table [ group-address |
source-address ]
display mpm group [ vlan vlan-id [ ip-address ] ]
debugging multicast forwarding
undo debugging multicast forwarding
debugging multicast status-forwarding
undo debugging multicast status-forwarding
debugging multicast kernel-routing
undo debugging multicast kernel-routing