Chapter 20
| Multicast Routing
Configuring PIM for IPv4
– 768 –
Parameters
These parameters are displayed:
◆ BSR Candidate Status – Configures the switch as a Bootstrap Router (BSR)
candidate. (Default: Disabled)
◆ VLAN ID – Identifier of configured VLAN interface. (Range: 1-4094)
◆ Hash Mask Length – Hash mask length (in bits) used for RP selection (see
“Configuring a PIM Static Rendezvous Point” on page 769 and “Configuring a
PIM RP Candidate” on page 770). The portion of the hash specified by the mask
length is ANDed with the group address. Therefore, when the hash function is
executed on any BSR, all groups with the same seed hash will be mapped to the
same RP. If the mask length is less than 32, then only the first portion of the
hash is used, and a single RP will be defined for multiple groups. (Range: 0-32;
Default: 10)
◆ Priority – Priority used by the candidate bootstrap router in the election
process. The BSR candidate with the largest priority is preferred. If the priority
values are the same, the candidate with the larger IP address is elected to be
the BSR. Setting the priority to zero means that this router is not eligible to
server as the BSR. At least one router in the PIM-SM domain must be set to a
value greater than zero. (Range: 0-255; Default: 0)
Web Interface
To configure the switch as a BSR candidate:
1. Click Routing Protocol, PIM, SM.
2. Select BSR Candidate from the Step list.
3. Specify the VLAN interface for which this router is bidding to become the BSR,
the hash mask length that will subsequently be used for RP selection if this
router is selected as the BSR, and the priority for BSR selection.
4. Click Apply.
Figure 527: Configuring a PIM-SM BSR Candidate
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