ACL based RP assignment
The rp-address command allows multiple static rendezvous point (RP) configurations. For each static
RP, an ACL can be given as an option to define the multicast address ranges that the static RP permit
or deny to serve.
A static RP by default serves the range of 224.0.0.0/4 if the RP is configured without an ACL name. If
an ACL name is given but the ACL is not defined, the static RP is set to inactive mode and it will not
cover any multicast group ranges.
The optional static RP ACL can be configured as a standard ACL or as an extended ACL. For an
extended ACL, the destination filter will be used to derive the multicast group range and all other filters
are ignored. The content of the ACL needs to be defined in the order of prefix length; the longest prefix
must be placed at the top of the ACL definition.
If there are overlapping group ranges among the static RPs, the static RP with the longest prefix match
is selected. If more than one static RP covers the exact same group range, the highest IP static RP will
be used.

Configuration considerations:

• The Static RP has higher precedence over RP learnt from the BSR.
• There is a limit of 64 static RPs in the systems.

Configuring an ACL based RP assignment

To configure an ACL based RP assignment, enter commands such as the following.
device(config)# router pim
device(config-pim-router)# rp-address 130.1.1.1 acl1
Syntax: [no] rp-address ip_address [acl_name_or_id ]
Use the ip address parameter to specify the IP address of the device you want to designate as an RP
device.
Use the acl name or id (optional) parameter to specify the name or ID of the ACL that specifies which
multicast groups use this RP.

Displaying the static RP

Use the show ip pim rp-set command to display static RP and the associated group ranges.
device(config)# show ip pim rp-set
Static RP and associated group ranges
-------------------------------------
Static RP count: 4
130.1.1.1
120.1.1.1
120.2.1.1
124.1.1.1
Number of group prefixes Learnt from BSR: 0
No RP-Set present.
Use the show ip pim rp-map command to display all current multicast group addresses to RP address
mapping.
device(config)# show ip pim rp-map
Number of group-to-RP mappings: 5
-------------------------------------------
S.No Group address RP address

ACL based RP assignment

FastIron Ethernet Switch IP Multicast Configuration Guide 101
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