Extensions to the PMIPv6 Access Network Identifier Option

Access Network Identifier (ANI) Mobility option was introduced in [RFC6757] enabling a MAG to convey information like network identifier, geo-location, operator-identifier. This specification extends Access Network Identifier mobility option with sub-options to carry Civic Location and MAG Group Identifer This specificaton also defines a ANI update timer sub-option that informs the the LMA when (and how often) the ANI will be updated.