729
Configuring IP Multicast Routing
Configuration Example
Switch(config)# access-list 1 permit 225.2.2.2 0.0.0.0
Switch(config)# ip pim rp-address 147.106.6.22 1
This example shows how to send RP announcements out all PIM-enabled interfaces for a maximum of 31 hops. The IP
address of port 1 is the RP. Access list 5 describes the group for which this switch serves as RP:
Switch(config)# ip pim send-rp-announce gigabitethernet0/1 scope 31 group-list 5
Switch(config)# access-list 5 permit 224.0.0.0 15.255.255.255
This example shows a sample configuration on an Auto-RP mapping agent that is used to prevent candidate RP
announcements from being accepted from unauthorized candidate RPs. In this example, the mapping agent accepts
candidate RP announcements from only two devices, 172.16.5.1 and 172.16.2.1. The mapping agent accepts candidate
RP announcements from these two devices only for multicast groups that fall in the group range of 224.0.0.0 to
239.255.255.255. The mapping agent does not accept candidate RP announcements from any other devices in the
network. Furthermore, the mapping agent does not accept candidate RP announcements from 172.16.5.1 or 172.16.2.1
if the announcements are for any groups in the 239.0.0.0 through 239.255.255.255 range. This range is the
administratively scoped address range.
Switch(config)# ip pim rp-announce-filter rp-list 10 group-list 20
Switch(config)# access-list 10 permit host 172.16.5.1
Switch(config)# access-list 10 permit host 172.16.2.1
Switch(config)# access-list 20 deny 239.0.0.0 0.0.255.255
Switch(config)# access-list 20 permit 224.0.0.0 15.255.255.255
The following example configures the interface to be the PIM domain border:
interface ethernet 1
ip pim bsr-border
This example shows a portion of an IP multicast boundary configuration that denies Auto-RP information:
Switch(config)# access-list 1 deny 224.0.1.39
Switch(config)# access-list 1 deny 224.0.1.40
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# ip multicast boundary 1
This example shows how to configure a candidate BSR, which uses the IP address 172.21.24.18 on a port as the
advertised BSR address, uses 30 bits as the hash-mask-length, and has a priority of 10:
Switch(config)# interface gigabitethernet0/2
Switch(config-if)# ip address 172.21.24.18 255.255.255.0
Switch(config-if)# ip pim sparse-dense-mode
Switch(config-if)# ip pim bsr-candidate gigabitethernet0/2 30 10
This example shows how to configure the switch to advertise itself as a candidate RP to the BSR in its PIM domain.
Standard access list number 4 specifies the group prefix associated with the RP that has the address identified by a port.
That RP is responsible for the groups with the prefix 239.
Switch(config)# ip pim rp-candidate gigabitethernet0/2 group-list 4
Switch(config)# access-list 4 permit 239.0.0.0 0.255.255.255
The following example shows how to set a threshold of 4 kbps. If the traffic rate exceeds this threshold, the traffic to a
group from a source causes the router to switch to the shortest path tree to that source.
Switch# configure terminal
Switch(config)# ip pim spt-threshold 4
The following example shows how to set the PIM hello interval to 45 seconds:
interface FastEthernet0/1
ip pim query-interval 45
To Next Page
Loading...
Need help?
General