3. Enable PIM-SM on an interface. See page 758.
Related Configuration Tasks
•
Configurable S,G Expiry Timers on page 759
•
Configure a Static Rendezvous Point on page 760
•
Elect an RP using the BSR Mechanism on page 762
•
Configure a Designated Router on page 763
•
Create Multicast Boundaries and Domains on page 763
•
Set a Threshold for Switching to the SPT on page 764
•
PIM-SM Graceful Restart on page 764
•
First Packet Forwarding for Lossless Multicast on page 765
•
Monitoring PIM on page 766
Enable PIM-SM
You must enable PIM-SM on each participating interface:
IP Version
Task
IPv4
Enable PIM-Sparse Mode on an interface.
IPv6
Enable PIM-Sparse Mode on an interface.
Display which interfaces are enabled with PIM-SM using the command
EXEC Privilege mode, as shown in
Figure 34-1. Viewing PIM-SM Enabled Interfaces
FTOS#show ip pim interface
Address
189.87.5.6
189.87.3.2
189.87.31.6
189.87.50.6
FTOS#
Note: You can influence the selection of the Rendezvous Point by enabling PIM-Sparse Mode on a
loopback interface and assigning a low IP address.
Display PIM neighbors for each interface using the command
Privilege mode, as shown in
758
|
PIM Sparse-Mode
Figure
34-1.
Interface VIFindex Ver/
Mode
Gi 4/11
0x2
v2/S
Gi 4/12
0x3
v2/S
Gi 7/11
0x0
v2/S
Gi 7/13
0x4
v2/S
Figure
34-2.
Command
ip pim sparse-mode
ipv6 pim sparse-mode
show
Nbr
Query
DR
DR
Count
Intvl
Prio
1
30
1
127.87.5.6
1
30
1
127.87.3.5
0
30
1
127.87.31.6
1
30
1
127.87.50.6
show
ip | ipv6
[
Command Mode
INTERFACE
INTERFACE
ip | ipv6
pim interface
[
]
from
pim neighbor
]
from EXEC