338 CHAPTER 18: MULTICAST PROTOCOL
Displaying andDebugging PIM-DMAfter the above configuration, execute the display command in any view to display the running of PIM-DM configuration, and to verify the effect of the configuration.Execute the debugging command in user view for the debugging of PIM-DM.PIM-DM ConfigurationExampleNetworking RequirementsSwitch_A has a port carrying Vlan 10 to connect the Multicast Source, a port carrying Vlan11 to connect Switch_B and a port carrying Vlan12 to connect to Switch_C. Configure to implement multicast between Multicast Source and Receiver 1 and Receiver 2.
Networking Diagram

Figure85 PIM-DM configuration networking

Table349 Displaying and debugging PIM-DM

Operation Command
Display the PIM multicast
routing table display pim routing-table [ { { *g [ group_address
[ mask { mask_length | mask } ] ] | **rp [
rp_address [ mask { mask_length | mask } ] ] } | {
group_address [ mask { mask_length | mask } ] |
source_address [ mask { mask_length | mask } ] } *
} | incoming-interface { interface-type
interface_number | null } | { dense-mode |
sparse-mode } ] *
Display the PIM interface
information display pim interface [ interface-type
interface_number ]
Display the information
about PIM neighboring
routers
display pim neighbor [ interface-type
interface_number ]
Enable the PIM
debugging debugging pim common { all | event | packet |
timer }
Disable the PIM
debugging undo debugging pim common { all | event | packet |
timer }
Enable the PIM-DM
debugging debugging pim dm { alert | all | mbr | mrt | timer
| warning | { recv | send } { all | assert | graft
| graft-ack | join | prune } }
Disable the PIM-DM
debugging undo debugging pim dm { alert | all | mbr | mrt |
timer | warning | { recv | send } { all | assert |
graft | graft-ack | join | prune } }
Lanswitch3
Lanswitch1
RECEIVER 1
Lanswitch2
VLAN10 VLAN11
VLAN12
Multicast
Source
RECEIVER 2
VLAN20
VLAN30
Lanswitch3
Lanswitch1
RECEIVER 1
Lanswitch2
VLAN10 VLAN11
VLAN12
Multicast
Source
RECEIVER 2
VLAN20
VLAN30
Switch_A
Switch_B
Switch_C