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    4. Secure GPRS Tunneling Protocol (GTP) in Mobile Networks
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    6. GTP Message Type
    End-of-Life (EoL)

    GTP Message Type

    Indicates the type of GTP message. GTPv1 messages are defined in 3GPP T.S 29.060 release 13.4 and GTPv2 messages defined in 3GPP T.S 29.274.
    GTP
    Message Value
    Message Type
    GTPv1
    1
    Echo Request
    2
    Echo Response
    3
    Version Not Supported
    4
    Node Alive Request
    5
    Node Alive Response
    6
    Redirection Request
    7
    Create PDP Context Request
    16
    Create PDP Context Response
    17
    Update PDP Context Request
    18
    Update PDP Context Response
    19
    Delete PDP Context Request
    20
    Delete PDP Context Response
    22
    Initiate PDP Context Activation Request
    23
    Initiate PDP Context Activation Response
    26
    Error Indication
    27
    PDU Notification Request
    28
    PDU Notification Response
    29
    PDU Notification Reject Request
    30
    PDU Notification Reject Response
    31
    Supported Extensions Header Notification
    32
    Send Routing for GPRS Request
    33
    Send Routing for GPRS Response
    34
    Failure Report Request
    35
    Failure Report Response
    36
    Note MS Present Request
    37
    Note MS Present Response
    38
    Identification Request
    39
    Identification Response
    50
    SGSN Context Request
    51
    SGSN Context Response
    52
    SGSN Context Acknowledge
    53
    Forward Relocation Request
    54
    Forward Relocation Response
    55
    Forward Relocation Complete
    56
    Relocation Cancel Request
    57
    Relocation Cancel Response
    58
    Forward SRNS Context
    59
    Forward Relocation Complete Acknowledge
    60
    Forward SRNS Context Acknowledge
    61
    UE Registration Request
    62
    UE Registration Response
    70
    RAN Information Relay
    96
    MBMS Notification Request
    97
    MBMS Notification Response
    98
    MBMS Notification Reject Request
    99
    MBMS Notification Reject Response
    100
    Create MBMS Notification Request
    101
    Create MBMS Notification Response
    102
    Update MBMS Notification Request
    103
    Update MBMS Notification Response
    104
    Delete MBMS Notification Request
    105
    Delete MBMS Notification Response
    112
    MBMS Registration Request
    113
    MBMS Registration Response
    114
    MBMS De-Registration Request
    115
    MBMS De-Registration Response
    116
    MBMS Session Start Request
    117
    MBMS Session Start Response
    118
    MBMS Session Stop Request
    119
    MBMS Session Stop Response
    120
    MBMS Session Update Request
    121
    MBMS Session Update Response
    128
    MS Info Change Request
    129
    MS Info Change Response
    240
    Data Record Transfer Request
    241
    Data Record Transfer Response
    254
    End Marker
    255
    G-PDU
    GTPv2
    1
    Echo Request
    2
    Echo Response
    3
    Version Not Supported
    32
    Create Session Request
    33
    Create Session Response
    34
    Modify Bearer Request
    35
    Modify Bearer Response
    36
    Delete Session Request
    37
    Delete Session Response
    38
    Change Notification Request
    39
    Change Notification Response
    40
    Remote UE Report Notifications
    41
    Remote UE Report Acknowledge
    164
    Resume Notification
    165
    Resume Acknowledge
    64
    Modify Bearer Command
    65
    Modify Bearer Failure
    66
    Delete Bearer Command
    67
    Delete Bearer Failure
    68
    Bearer Resource Command
    69
    Bearer Resource Failure
    70
    Downlink Data Notification Failure
    71
    Trace Session Activation
    72
    Trace Session Deactivation
    73
    Stop Paging Indication
    95
    Create Bearer Request
    96
    Create Bearer Response
    97
    Update Bearer Request
    98
    Update Bearer Response
    99
    Delete Bearer Request
    100
    Delete Bearer Response
    101
    Delete PDN Request
    102
    Delete PDN Response
    103
    PGW Downlink Notification
    104
    PGW Downlink Acknowledge
    128
    Identification Request
    129
    Identification Response
    130
    Context Request
    131
    Context Response
    132
    Context Acknowledge
    133
    Forward Relocation Request
    134
    Forward Relocation Response
    135
    Forward Relocation Notification
    136
    Forward Relocation Acknowledge
    137
    Forward Access Notification
    138
    Forward Access Acknowledge
    139
    Relocation Cancel Request
    140
    Relocation Cancel Response
    141
    Configuration Transfer Tunnel
    152
    RAN Information Relay
    149
    Detach Notification
    150
    Detach Acknowledge
    151
    CS Paging
    153
    Alert MME Notification
    154
    Alert MME Acknowledge
    155
    UE Activity Notification
    156
    UE Activity Acknowledge
    157
    ISR Status
    162
    Suspend Notification
    163
    Suspend Acknowledge
    160
    Create Forwarding Request
    161
    Create Forwarding Response
    166
    Create Indirect Data Tunnel Request
    167
    Create Indirect Data Tunnel Response
    168
    Delete Indirect Data Tunnel Request
    169
    Delete Indirect Data Tunnel Response
    170
    Release Access Bearers Request
    171
    Release Access Bearers Response
    176
    Downlink Data Notification
    177
    Downlink Data Acknowledge
    179
    PGW Restart Notification
    180
    PGW Restart Acknowledge
    200
    Update PDN Connection Request
    201
    Update PDN Connection Response
    211
    Modify Access Bearers Request
    212
    Modify Access Bearers Response
    231
    MMBS Session Start Request
    232
    MMBS Session Start Response
    233
    MMBS Session Update Request
    234
    MMBS Session Update Response
    235
    MMBS Session Stop Request
    236
    MMBS Session Stop Response

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