Debugging Pim-Dm - 3Com 3032 Configuration Manual

Starting the PIM-DM
Protocol
Configuring the Time
Interval for Hello
Messages
Displaying and

Debugging PIM-DM

You must start the PIM-DM protocol at each interface. By default, the system
disables the PIM-DM protocol.
Make the following configuration in the interface view.
Table 584 Start/Disable PIM-DM Protocol
Operation
Start PIM-DM protocol
Disable PIM-DM protocol
After the interface starts PIM-DM protocol, it will periodically send to all the PIM
routers (group address is 224.0.0.13) hello messages to find neighbors. PIM
query-interval timer determines the time interval. If the interface receives the hello
message, it means that there are adjacent PIM routers for this interface, and this
interface adds the neighbor to its interface neighbor list. If the interface does not
receive any hello message from the neighbors in the interface neighbor list within
a specific period, it is assumed that the neighbor has left the multicast network.
The time interval of sending hello message can be configured according to the
bandwidth and the type of the network to which the interface connects.
Make the following configuration in the interface view.
Table 585 Configure the Time Interval of Interface Sending Hello Messages
Operation
Set the time interval of interface sending
hello messages
Restore the default value of the time
interval of interface sending hello
messages
By default, the time interval of interface sending hello messages is 30 seconds.
Table 586 Display and Debug PIM-DM
Operation
Display multicast forwarding list
information
Display multicast core routing table
Display IP multicast forwarding table
information
Display PIM protocol interface information display pim interface [ type number ]
Display PIM protocol multicast routing
table information
Display PIM adjacent routers information
Turn on the switch of multicast
forwarding table debugging information
Turn on the switch of PIM general
debugging information
Displaying and Debugging PIM-DM
Command
pim dm
undo pim dm
Command
pim timer hello seconds
undo pim timer hello
Command
display multicast forwarding-table [
group-address | source-address ]
display multicast routing-table [
group-address | source-address ]
display multicast forwarding-table
display pim routing-table [ *g [
group-address ] | **rp [ rp-address ]
| { group-address | source-address }
]
display pim neighbor [ interface type
number ]
debugging multicast forwarding
debugging pim common { all | event |
packet | timer }
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