+ :param action: 0: No action (by default) metadata is not used.
+ 1: Classified IP packets will be looked up from the specified ipv4
+ fib table (configured by metadata as VRF id).
+ Only valid for L3 input ACL node
+ 2: Classified IP packets will be looked up from the specified ipv6
+ fib table (configured by metadata as VRF id).
+ Only valid for L3 input ACL node
+ 3: Classified packet will be steered to source routing policy of
+ given index (in metadata).
+ This is only valid for IPv6 packets redirected to a source
+ routing node.
+ :param metadata: Valid only if action != 0. VRF id if action is 1 or 2.
+ SR policy index if action is 3. (Default value = 0)