Cisco Systems 78-11741-02 Wireless Office Headset User Manual


 
Configuring IP Multicast Routing
Configuring PIM Version 2
IPC-420
Cisco IOS IP Configuration Guide
To prevent BSR messages from being sent or received through an interface, use the following command
in interface configuration mode:
To prevent Auto-RP messages from being sent or received through an interface, use the following
commands beginning in global configuration mode. The access list denies packets destined for the
224.0.1.39 and 224.0.1.40 multicast groups. These two groups are specifically assigned to carry
Auto-RP information.
Configuring Candidate BSRs
Configure one or more candidate BSRs. The routers to serve as candidate BSRs should be well connected
and be in the backbone portion of the network, as opposed to the dialup portion of the network.
Note The Cisco IOS implementation of PIM BSR uses the value 0 as the default priority for candidate RPs
and BSRs. This implementation predates the draft-ietf-pim-sm-bsr IETF draft, the first IETF draft to
specify 192 as the default priority value. The Cisco IOS implementation, thus, deviates from the IETF
draft. To comply with the default priority value specified in the draft, you must explicitly set the priority
value to 192.
To configure a router to be a candidate BSR, use the following command in global configuration mode:
Configuring Candidate RPs
Configure one or more candidate RPs. Similar to BSRs, the RPs should also be well connected and in
the backbone portion of the network. An RP can serve the entire IP multicast address space or a portion
of it. Candidate RPs send candidate RP advertisements to the BSR.
Command Purpose
Router(config-if)# ip pim bsr-border
Prevents BSR messages from being sent or received through an
interface.
Command Purpose
Step 1
Router(config)# access-list
access-list-number {deny | permit} source
[source-wildcard]
Defines an administratively scoped boundary.
Step 2
Router(config-if)# ip multicast boundary
access-list
Prevents Auto-RP messages (used in PIM Version 1) from being
sent or received through an interface.
Command Purpose
Router(config)# ip pim bsr-candidate type number
hash-mask-length [priority]
Configures the router to be a candidate BSR.