Brocade TurboIron 24X Series Configuration Guide - Manual (Page 844)

810 Brocade TurboIron 24X Series Configuration Guide
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PIM Sparse
To enable PIM Sparse mode on an interface, enter commands such as the following.
TurboIron(config)#interface ethernet 2
TurboIron(config-if-2)#ip address 10.95.7.1 255.255.255.0
TurboIron(config-if-2)#ip pim-sparse
Syntax: [no] ip pim-sparse
The commands in this example add an IP interface to port 2, then enable PIM Sparse on the
interface.
If the interface is on the border of the PIM Sparse domain, you also must enter the following
command.
TurboIron(config-if-2)#ip pim border
Syntax: [no] ip pim border
NOTE
You cannot configure a routing interface as a PMBR interface for PIM Sparse in the current software
release.
Configuring BSRs
In addition to the global and interface parameters in the sections above, you need to identify an
interface on at least one Layer 3 Switch as a candidate PIM Sparse Bootstrap router (BSR) and
candidate PIM Sparse Rendezvous Point (RP).
NOTE
It is possible to configure the Layer 3 Switch as only a candidate BSR or RP, but Brocade
recommends that you configure the same interface on the same Layer 3 Switch as both a BSR and
an RP.
This section presents how to configure BSRs. Refer to “Configuring RPs” on page 811 for
instructions on how to configure RPs.
To configure the Layer 3 Switch as a candidate BSR and RP, enter commands such as the following.
TurboIron(config)#router pim
TurboIron(config-pim-router)#bsr-candidate ethernet 2 30 255
BSR address: 10.95.7.1, hash mask length: 30, priority: 255
This command configures the PIM Sparse interface on port 2 as a BSR candidate, with a hash
mask length of 30 and a priority of 255. The information shown in italics above is displayed by the
CLI after you enter the candidate BSR configuration command.
Syntax: [no] bsr-candidate ethernet [ | loopback | ve
[]
The | loopback | ve parameter specifies the interface. The Layer 3
Switch will advertise the specified interface IP address as a candidate BSR:
• Enter ethernet for a physical interface (port).
• Enter ve for a virtual interface.
• Enter loopback for a loopback interface.
The <hash-mask-length> parameter specifies the number of bits in a group address that are
significant when calculating the group-to-RP mapping. You can specify a value from 1 – 32.