203 
[SwitchD-pim] bidir-pim enable 
[SwitchD-pim] quit 
4.  On Switch C, configure VLAN interface 102 as a C-BSR, and loopback interface 0 as a C-RP for 
the entire BIDIR-PIM domain. 
[SwitchC-pim] c-bsr vlan-interface 102 
[SwitchC-pim] c-rp loopback 0 bidir 
[SwitchC-pim] quit 
Verifying the configuration 
# Display the DF information of BIDIR-PIM on Switch A.  
[SwitchA] display pim df-info 
 VPN-Instance: public net 
 
 RP Address: 1.1.1.1 
  Interface           State   DF-Pref    DF-Metric  DF-Uptime DF-Address 
  Vlan100             Win     100        2          01:08:50  192.168.1.1 (local) 
  Vlan101             Lose    100        1          01:07:49  10.110.1.2 
# Display the DF information of BIDIR-PIM on Switch B.  
[SwitchB] display pim df-info 
 VPN-Instance: public net 
 
 RP Address: 1.1.1.1 
  Interface           State   DF-Pref    DF-Metric  DF-Uptime DF-Address 
  Vlan200             Win     100        1          01:24:09  192.168.2.1 (local) 
  Vlan101             Win     100        1          01:24:09  10.110.1.2 (local) 
  Vlan102             Lose    0          0          01:23:12  10.110.2.2 
# Display the DF information of BIDIR-PIM on Switch C.  
[SwitchC] display pim df-info 
 VPN-Instance: public net 
 
 RP Address: 1.1.1.1 
  Interface           State   DF-Pref    DF-Metric  DF-Uptime DF-Address 
  Loop0               -       -          -          -         - 
  Vlan102             Win     0          0          01:06:07  10.110.2.2 (local) 
  Vlan103             Win     0          0          01:06:07  10.110.3.1 (local) 
# Display the DF information of BIDIR-PIM on Switch D.  
[SwitchD] display pim df-info 
 VPN-Instance: public net 
 
 RP Address: 1.1.1.1 
  Interface           State   DF-Pref    DF-Metric  DF-Uptime DF-Address 
  Vlan300             Win     100        1          01:19:53  192.168.3.1 (local) 
  Vlan400             Win     100        1          00:39:34  192.168.4.1 (local) 
  Vlan103             Lose    0          0          01:21:40  10.110.3.1 
# Display the DF information of the multicast forwarding table on Switch A. 
[SwitchA] display multicast forwarding-table df-info