Quick Reference Guide

480 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
PIM Sparse
19
• Configure the following global parameter:
• Enable the PIM Sparse mode of multicast routing.
• Configure the following interface parameters:
• Configure an IP address on the interface
• Enable PIM Sparse.
• Identify the interface as a PIM Sparse border, if applicable.
NOTE
You cannot configure a routing interface as a PMBR interface for PIM Sparse in the current
software release.
• Configure the following PIM Sparse global parameters:
• Identify the Layer 3 Switch as a candidate PIM Sparse Bootstrap Router (BSR), if
applicable.
• Identify the Layer 3 Switch as a candidate PIM Sparse Rendezvous Point (RP), if
applicable.
• Specify the IP address of the RP (if you want to statically select the RP).
NOTE
Dell recommends that you configure the same Layer 3 Switch as both the BSR and the RP.
Limitations in this release
The implementation of PIM Sparse in the current software release has the following limitations:
• PIM Border Routers (PMBRs) are not supported. Thus, you cannot configure a routing interface
as a PMBR interface for PIM Sparse.
• PIM Sparse and regular PIM (dense mode) cannot be used on the same interface.
Configuring Global PIM Sparse parameters
To configure the PIM Sparse global parameters, use either of the following methods.
To configure basic global PIM Sparse parameters, enter commands such as the following on each
Layer 3 Switch within the PIM Sparse domain.
PowerConnect(config)#router pim
Syntax: [no] router pim
NOTE
You do not need to globally enable IP multicast routing when configuring PIM Sparse.
The command in this example enables IP multicast routing, and enables the PIM Sparse mode of IP
multicast routing. The command does not configure the Layer 3 Switch as a candidate PIM Sparse
Bootstrap Router (BSR) and candidate Rendezvous Point (RP). You can configure a Layer 3 Switch
as a PIM Sparse switch without configuring the it as a candidate BSR and RP. However, if you do
configure the Layer 3 Switch as one of these, Dell recommends that you configure it as both. Refer
to “Configuring BSRs” on page 481.
The behavior of the [no] router pim command is as follows: