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746 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
PIM Sparse
25
Configuring PIM interface parameters
After you enable IP multicast routing and PIM Sparse at the global level, you must enable it on the
individual interfaces connected to the PIM Sparse network. To do so, use the following CLI method.
To enable PIM Sparse mode on an interface, enter commands such as the following.
PowerConnect(config)#interface ethernet 2/2
PowerConnect(config-if-2/2)#ip address 207.95.7.1 255.255.255.0
PowerConnect(config-if-2/2)#ip pim-sparse
Syntax: [no] ip pim-sparse
The commands in this example add an IP interface to port 2/2, 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.
PowerConnect(config-if-2/2)#ip pim border
Syntax: [no] ip pim border
NOTE
You cannot configure a Dell 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 Dell 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 747 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.
PowerConnect(config)#router pim
PowerConnect(config-pim-router)#bsr-candidate ethernet 2/2 30 255
BSR address: 207.95.7.1, hash mask length: 30, priority: 255
This command configures the PIM Sparse interface on port 2/2 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 [<slotnum>/]<portnum> | loopback <num> | ve <num>
<hash-mask-length> [<priority>]
The <slotnum> parameter is required on chassis devices.
The <portnum> | loopback <num> | ve <num> parameter specifies the interface. The Layer 3
Switch will advertise the specified interface IP address as a candidate BSR:
• Enter ethernet [<slotnum>/] <portnum> for a physical interface (port).