Configuration Guide User guide

FastIron Configuration Guide 1539
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PIM Sparse
The <num> parameter specifies the number of seconds and can from 1 – 65535. The default is
60.
Dropping PIM traffic in hardware
Unwanted PIM Dense or PIM Sparse multicast traffic can be dropped in hardware on Layer 3
switches. This feature does not apply to DVMRP. Refer to “Passive multicast route insertion” on
page 1579.
ACL based RP assignment
The rp-address command allows multiple static 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 for assigning ACL-based RP
• The RP learned from the BSR has higher precedence over Static RP. For more information,
refer to the definition of the override parameter in the section “Using ACLs to limit static RP
groups” on page 1588
• There is a limit of 16 static RPs in the systems.
Configuring an ACL based RP assignment
To configure an ACL based RP assignment, enter commands such as the following.
Brocade(config)# router pim
Brocade(config-pim-router)# rp-address 130.1.1.1 20
Syntax: [no] rp-address <ip_address> [<acl-num>]
Use the ip address parameter to specify the IP address of the device you want to designate as an
RP device.
Use the acl-num parameter to specify standard numbered ACL that specifies which multicast
groups use this RP.
NOTE
Only standard numbered ACLs are supported when configuring an ACL based RP assignment.