Cisco Nexus 7000 Series Configuration Manual page 106

Configuring BSRs (PIM)
Tip You should choose the candidate BSRs and candidate RPs that have good connectivity to all parts of the PIM
domain.
You can configure the same router to be both a BSR and a candidate RP. In a domain with many routers, you
can select multiple candidate BSRs and RPs to automatically fail over to alternates if a BSR or an RP fails.
To configure candidate BSRs and RPs, follow these steps:
1. Configure whether each router in the PIM domain should listen to and forward BSR messages. A router
configured as either a candidate RP or a candidate BSR automatically listens to and forwards all bootstrap
router protocol messages, unless an interface is configured with the domain border feature. For more
information, see the Configuring PIM or PIM6 Sparse Mode.
2. Select the routers to act as candidate BSRs and RPs.
3. Configure each candidate BSR and candidate RP as described in this section.
4. Configure BSR message filtering. See Configuring Message Filtering.
Configuring BSRs (PIM)
Before you begin
Ensure that you have installed the Enterprise Services license and enabled PIM or PIM6.
Procedure
Step 1
Step 2
Step 3
Step 4
Cisco Nexus 7000 Series NX-OS Multicast Routing Configuration Guide
92
Command or Action
config t
Example:
switch# config t
switch(config)#
ip pim bsr listen forward listen|forward |
forward|listen
Example:
switch(config)# ip pim bsr listen forward
ip pim bsr[bsr-candidate ] interface [hash-len
hash-length ] [ priorty priority ]
Example:
switch(config)# ip pim bsr-candidate
ethernet 2/1 hash-len 24
ip [ bsr] rp-candidate interface group-list
ip-prefix route-map policy-name priority
priority interval interval bidir
Example:
Configuring PIM and PIM6
Purpose
Enters global configuration mode.
Configures listen and forward.
Ensure that you have entered this command in
each VRF on the remote PE.
Configures a candidate bootstrap router (BSR).
The source IP address used in a bootstrap
message is the IP address of the interface. The
hash length ranges from 0 to 32 and has a
default of 30. The priority ranges from 0 to 255
and has a default of 64.
(Optional) Specifies the number of Bidir RPs
that you can configure for IPv6. The maximum
number of Bidir RPs supported per VRF for
PIM and PIM6 combined cannot exceed 8.
Values range from 0 to 8. The default is 2.