Displaying And Debugging Pim-Sm; Pim-Sm Configuration Example - 3Com 5500-SI Configuration Manual

346 C 18: M
HAPTER ULTICAST
Displaying and
Debugging PIM-SM
PIM-SM Configuration
Example
P
ROTOCOL
In BSR mechanism, a C-RP router unicasts C-RP messages to the BSR, which then
propagates the C-RP messages among the network by BSR message. To prevent C-RP
spoofing, you need to configure
their service group range. Since each C-BSR has the chance to become BSR, you must
configure the same filtering policy on each C-BSR router.
Perform the following configuration in PIM view.
Table 359 Limiting the range of legal C-RP
Operation
Set the legal C-RP range limit
Restore to the default setting
For detailed information of
Clearing Multicast Route Entries from PIM Routing Table
Refer to "PIM-DM Overview" on page 333.
Clearing PIM Neighbors
Refer to "PIM-DM Overview" on page 333.
After the above configuration, execute display command in any view to display the
running of PIM-SM configuration, and to verify the effect of the configuration.
Execute command in user view for the debugging of PIM-SM.
debugging
Table 360 Displaying and debugging PIM-SM
Operation
Display the BSR
information
Display the RP information display pim rp-info [ group-address ]
Enable the PIM-SM
debugging
Disable the PIM-SM
debugging
Networking Requirements
In actual network, we assume that the switches can intercommunicate.
Suppose that Host A is the receiver of the multicast group at 225.0.0.1. Host B begins
transmitting data destined to 225.0.0.1. Switch_A receives the multicast data from
Host B via Switch_B.
on the BSR to limit legal C-RP range and
crp-policy
Command
crp-policy acl-number
undo crp-policy
, please refer to the command manual.
crp-policy
Command
display pim bsr-info
debugging pim sm { all | verbose | mrt | warning |
mbr { alert | fresh } | timer { assert | bsr |
crpadv | jp | jpdelay | mrt | probe | spt } | {
recv | send } { assert | bootstrap | crpadv | reg
| regstop | jp } }
undo debugging pim sm { all | verbose | mrt |
warning | mbr { alert | fresh } | timer { assert |
bsr | crpadv | jp | jpdelay | mrt | probe | spt }
| { recv | send } { assert | bootstrap | crpadv |
reg | regstop | jp } }