Abstract: A method, apparatus and computer program product for providing IP multicast over split plane wireless LAN. An access tunnel (AT) is defined as an IP multicast interface at a first network device. The AT is capable of communicating with a second network device that is an Internet Protocol (IP) multicast receiver, wherein a local Virtual Local Area Network (VLAN) the first device serves the second network device's mobility VLAN. The first network device sends a query to the second network device over the AT and receiving, in response to the sending the query, a report. A data structure is built defining a multicast group membership from the report, and multicast data is forwarded in accordance with the data structure.

Abstract: A method, apparatus and computer program product for providing IP multicast over split plane wireless LAN. An access tunnel (AT) is defined as an IP multicast interface at a first network device. The AT is capable of communicating with a second network device that is an Internet Protocol (IP) multicast receiver, wherein a local Virtual Local Area Network (VLAN) the first device serves the second network device's mobility VLAN. The first network device sends a query to the second network device over the AT and receiving, in response to the sending the query, a report. A data structure is built defining a multicast group membership from the report, and multicast data is forwarded in accordance with the data structure.

Abstract: Multicast route leaking between VRFs in different VPNs enables receivers in different VPNs to subscribe to the same IP multicast so that an efficient IP multicast distribution tree can be built to include subscribers in multiple VPNs. VRFs are administratively configured to implement multicast route leaking and each such configured VRF brings up an internal connectionless IP interface. The VRFs then enable the multicast routing protocol (e.g. PIM) on the internal IP interface to establish PIM neighborships with each other. When a VRF receives an IGMP join from a receiver, it uses PIM to join the receiver to the multicast over the internal IP interface. This enables receivers outside of a VPN but associated with VRFs that are co-located on the same PE to join multicasts established within the VPN so that separate multicast distribution trees are not required for each VPN.