The SSM Channel Based Filtering for Multicast Boundaries feature expands the
boundary command for control plane filtering support. More than one
boundary 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
in keyword, 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.