3com 8807 用户指南
Displaying and Debugging IGMP
453
# Enable multicast.
<SwitchA>system-view
System View: return to User View with Ctrl+Z.
[SwitchA] multicast routing-enable
# Enable IGMP and PIM-DM for the interface of VLAN 100.
[SwitchA] interface vlan-interface 100
[SwitchA-Vlan-interface 100] igmp enable
[SwitchA-Vlan-interface 100] pim dm
# Configure Vlan-interface 100 so that it will not use the IP address 33.33.33.2 as
a PIM neighbor
a PIM neighbor
[SwitchA-Vlan-interface 100] pim neighbor-policy 2001
[SwitchA-Vlan-interface 100] quit
[SwitchA] acl number 2001
[SwitchA-acl-basic-2001] rule deny source 33.33.33.2 0
[SwitchA-acl-basic-2001] rule permit source any
3 Configure Receiver.
Receiver establishes HTTP connections to the multicast source and sends the list of
the names of the services provided by the multicast source to the clients (Each
service has its own multicast address, which is the multicast group). When a
service is selected, the client sends IGMP packets to join the multicast group,
through which the receiver can receive the corresponding multicast packets.
the names of the services provided by the multicast source to the clients (Each
service has its own multicast address, which is the multicast group). When a
service is selected, the client sends IGMP packets to join the multicast group,
through which the receiver can receive the corresponding multicast packets.
Displaying and
Debugging IGMP
Debugging IGMP
After the above configuration, execute display command in any view to display
the running of IGMP configuration, and to verify the effect of the configuration.
the running of IGMP configuration, and to verify the effect of the configuration.
Execute debugging command in corresponding views for the debugging of IGMP.
Table 446 Display and debug IGMP
Operation
Command
Display the information about members of
IGMP multicast groups
IGMP multicast groups
display igmp group [ group-address |
interface vlan-interface interface-number ]
interface vlan-interface interface-number ]
Display the IGMP configuration and running
information about the interface
information about the interface
display igmp interface [ vlan-interface
interface-number ]
interface-number ]
Enable the IGMP information debugging
debugging igmp { all | event | host | packet
| timer }
| timer }
Disable the IGMP information debugging
undo debugging igmp { all | event | host |
packet | timer }
packet | timer }