API Guide

Table Of Contents
3. If you configure a secondary VLT peer as an E-BSR and in case of ICL flap or failover, the VLT lag will be down resulting a BSM
timeout in the PIM domain and a new BSR will be elected. Hence, it is recommended to configure the primary VLT peer as E-BSR.
To enable BSR election for IPv4 or IPv6, perform the following steps:
1. Enter the following IPv4 or IPv6 command to make a PIM router a BSR candidate:
CONFIGURATION
ip pim bsr-candidate
ipv6 pim bsr-candidate
2. Enter the following IPv4 or IPv6 command to make a PIM router a RP candidate:
CONFIGURATION
ip pim rp-candidate
ipv6 pim rp-candidate
3. Display IPv4 or IPv6 Bootstrap Router information.
EXEC Privilege
show ip pim bsr-router
Example:
DellEMC# show ip pim bsr-router
PIMv2 Bootstrap information
This system is the Bootstrap Router (v2)
BSR address: 7.7.7.7 (?)
BSR Priority: 0, Hash mask length: 30
Next bootstrap message in 00:00:08
This system is a candidate BSR
Candidate BSR address: 7.7.7.7, priority: 0, hash mask length: 30
DellEMC#
show ipv6 pim bsr-router
Example:
DellEMC#show ipv6 pim bsr-router
PIMv2 Bootstrap information
BSR address: 200::1 (?)
BSR Priority: 0, Hash mask length: 126
Expires: 00:01:43
This system is a candidate BSR
Candidate BSR address: 100::1, priority: 0, hash mask length: 126
Next Cand_RP_advertisement in 00:00:25
RP: 100::1(Lo 0)
DellEMC#
Enabling RP to Server Specific Multicast Groups
When you configure an RP candidate, its advertisement is sent to the entire multicast address range and the group-to-RP mapping is
advertised for the entire range of multicast address. Starting with Dell Networking OS 9.11.0.0, you can configure an RP candidate for a
specified range of multicast group address.
The Configured multicast group ranges are used by the BSR protocol to advertise the candidate RPs in the bootstrap messages.
You can configure the multicast group ranges as a standard ACL list of multicast prefixes. You can then associate the configured group list
with the RP candidate.
NOTE:
• If there is no multicast group list configured for the RP-candidate, the RP candidate will be advertised for all
the multicast groups.
To enable an RP to serve specific group of multicast addresses, perform the following step:
Enter the following command to associate a multicast group to an RP candidate:
CONFIGURATION
ip pim [vrf vrf-name] rp-Candidate interface [priority] [acl-name]
The specified acl-list is associated to the rp-candidate.
652
PIM Source-Specific Mode (PIM-SSM)