ATTACH拒绝原因解释

DLT: 147, Payload: nas-eps_plain (Non-Access-Stratum (NAS)PDU)

Non-Access-Stratum (NAS)PDU

    0000 .... = Security header type: Plain NAS message, not security protected (0)

    .... 0111 = Protocol discriminator: EPS mobility management messages (0x07)

    NAS EPS Mobility Management Message Type: Attach reject (0x44)

    EMM cause

        Cause: ESM failure (19)

    ESM message container

        Element ID: 0x78

        Length: 4

        ESM message container contents: 0226d11e

            0000 .... = EPS bearer identity: No EPS bearer identity assigned (0)

            .... 0010 = Protocol discriminator: EPS session management messages (0x02)

            Procedure transaction identity: 38

            NAS EPS session management messages: PDN connectivity reject (0xd1)

            ESM cause

                Cause: Request rejected by Serving GW or PDN GW (30)

Cause #30 – Request rejected by Serving GW or PDN GW

      This ESM cause is used by the network to indicate that the requested service or operation or the request for a resource was rejected by the Serving GW or PDN GW.