Your software release
may not support all the features documented in this module. For the latest
feature information and caveats, see the release notes for your platform and
Use Cisco Feature
Navigator to find information about platform support and Cisco software image
support. To access Cisco Feature Navigator, go to
http://www.cisco.com/go/cfn. An account on Cisco.com is
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see
Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to
www.cisco.com/go/cfn. An account on Cisco.com is not required.
Prerequisites for SSM Channel Based Filtering for Multicast Boundaries
IP multicast is enabled on the device using the tasks described in the "Configuring Basic IP Multicast" module of the
IP Multicast: PIM Configuration Guide.
Information About the SSM Channel Based Filtering for Multicast Boundaries Feature
The SSM Channel Based Filtering for Multicast Boundaries feature expands the
ipmulticastboundary command for control plane filtering support. More than one
ipmulticastboundary command can be applied to an interface.
The following rules govern the
One instance of the
out keywords can be configured on an interface.
out keywords can be used for standard or extended access lists.
Only standard access lists are permitted with the use of the
filter-autorp keyword or no keyword.
A maximum of three instances of a command will be allowed on an interface: one instance of
in, one instance of
out, and one instance of
filter-autorp or no keyword.
When multiple instances of the command are used, the filtering will be cumulative. If a boundary statement with no keyword exists with a boundary statement with the
inkeyword, both access lists will be applied on the in direction and a match on either one will be sufficient.
All instances of the command apply to both control and data plane traffic.
Protocol information on the extended access list is parsed to allow reuse and filtering for consistency. An (S,G) operation will be filtered by an extended access list under all conditions stated above for keywords if the access list filters (S,G) traffic for all protocols.
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