Section: 17.7.18 MBMS-User-Data-Mode-Indication AVP
Content: The MBMS-User-Data-Mode-Indication AVP (AVP code 915) is of type Enumerated. The meaning of the message containing this AVP depends on the sending entity. The absence of this AVP indicates unicast mode of operation. The following values are supported: Unicast (0) When BM-SC sends this value, that indicates to GGSN that BM-SC supports only unicast mode (IP multicast packets encapsulated over UDP by IP unicast header). When GGSN sends this value, that indicates to BM-SC that BM-SC shall send user plane data with unicast mode (IP multicast packets encapsulated over UDP by IP unicast header). Multicast and Unicast (1) When BM-SC sends this value, that indicates to GGSN that BM-SC supports both modes of operation. When GGSN sends this value, that indicates to BM-SC that BM-SC shall send user plane data with multicast mode.