GTP Message Type

GTPv1 and GTPv2 have message types and corresponding message values.
Indicates the type of GTP message. GTPv1 messages are defined in 3GPP TS 29.060 release 13.4 and GTPv2 messages are defined in 3GPP TS 29.274.
GTP
Message Value
Message Type
Decimal
Hexadecimal
GTPv1
1
1
Echo Request
2
2
Echo Response
3
3
Version Not Supported
4
4
Node Alive Request
5
5
Node Alive Response
6
6
Redirection Request
7
7
Redirection Response
16
10
Create PDP Context Request
17
11
Create PDP Context Response
18
12
Update PDP Context Request
19
13
Update PDP Context Response
20
14
Delete PDP Context Request
21
15
Delete PDP Context Response
22
16
Initiate PDP Context Activation Request
23
17
Initiate PDP Context Activation Response
26
1A
Error Indication
27
1B
PDU Notification Request
28
1C
PDU Notification Response
29
1D
PDU Notification Reject Request
30
1E
PDU Notification Reject Response
31
1F
Supported Extensions Header Notification
32
20
Send Routing for GPRS Request
33
21
Send Routing for GPRS Response
34
22
Failure Report Request
35
23
Failure Report Response
36
24
Note MS Present Request
37
25
Note MS Present Response
38
26
Identification Request
39
27
Identification Response
50
32
SGSN Context Request
51
33
SGSN Context Response
52
34
SGSN Context Acknowledge
53
35
Forward Relocation Request
54
36
Forward Relocation Response
55
37
Forward Relocation Complete
56
38
Relocation Cancel Request
57
39
Relocation Cancel Response
58
3A
Forward SRNS Context
59
3B
Forward Relocation Complete Acknowledge
60
3C
Forward SRNS Context Acknowledge
61
3D
UE Registration Request
62
3E
UE Registration Response
70
46
RAN Information Relay
96
60
MBMS Notification Request
97
61
MBMS Notification Response
98
62
MBMS Notification Reject Request
99
63
MBMS Notification Reject Response
100
64
Create MBMS Notification Request
101
65
Create MBMS Notification Response
102
66
Update MBMS Notification Request
103
67
Update MBMS Notification Response
104
68
Delete MBMS Notification Request
105
69
Delete MBMS Notification Response
112
70
MBMS Registration Request
113
71
MBMS Registration Response
114
72
MBMS De-Registration Request
115
73
MBMS De-Registration Response
116
74
MBMS Session Start Request
117
75
MBMS Session Start Response
118
76
MBMS Session Stop Request
119
77
MBMS Session Stop Response
120
78
MBMS Session Update Request
121
79
MBMS Session Update Response
128
80
MS Info Change Request
129
81
MS Info Change Response
240
F0
Data Record Transfer Request
241
F1
Data Record Transfer Response
254
FE
End Marker
255
FF
G-PDU
GTPv2
1
1
Echo Request
2
2
Echo Response
3
3
Version Not Supported
32
20
Create Session Request
33
21
Create Session Response
34
22
Modify Bearer Request
35
23
Modify Bearer Response
36
24
Delete Session Request
37
25
Delete Session Response
38
26
Change Notification Request
39
27
Change Notification Response
40
28
Remote UE Report Notifications
41
29
Remote UE Report Acknowledge
64
40
Modify Bearer Command
65
41
Modify Bearer Failure
66
42
Delete Bearer Command
67
43
Delete Bearer Failure
68
44
Bearer Resource Command
69
45
Bearer Resource Failure
70
46
Downlink Data Notification Failure
71
47
Trace Session Activation
72
48
Trace Session Deactivation
73
49
Stop Paging Indication
95
5F
Create Bearer Request
96
60
Create Bearer Response
97
61
Update Bearer Request
98
62
Update Bearer Response
99
63
Delete Bearer Request
100
64
Delete Bearer Response
101
65
Delete PDN Request
102
66
Delete PDN Response
103
67
PGW Downlink Notification
104
68
PGW Downlink Acknowledge
128
80
Identification Request
129
81
Identification Response
130
82
Context Request
131
83
Context Response
132
84
Context Acknowledge
133
85
Forward Relocation Request
134
86
Forward Relocation Response
135
87
Forward Relocation Notification
136
88
Forward Relocation Acknowledge
137
89
Forward Access Notification
138
8A
Forward Access Acknowledge
139
8B
Relocation Cancel Request
140
8C
Relocation Cancel Response
141
8D
Configuration Transfer Tunnel
149
95
Detach Notification
150
96
Detach Acknowledge
151
97
CS Paging
152
98
RAN Information Relay
153
99
Alert MME Notification
154
9A
Alert MME Acknowledge
155
9B
UE Activity Notification
156
9C
UE Activity Acknowledge
157
9D
ISR Status
160
A0
Create Forwarding Request
99
63
Delete Bearer Request
100
64
Delete Bearer Response
161
A1
Create Forwarding Response
162
A2
Suspend Notification
163
A3
Suspend Acknowledge
164
A4
Resume Notification
165
A5
Resume Acknowledge
166
A6
Create Indirect Data Tunnel Request
167
A7
Create Indirect Data Tunnel Response
168
A8
Delete Indirect Data Tunnel Request
169
A9
Delete Indirect Data Tunnel Response
170
AA
Release Access Bearers Request
171
AB
Release Access Bearers Response
176
B0
Downlink Data Notification
177
B1
Downlink Data Acknowledge
179
B3
PGW Restart Notification
180
B4
PGW Restart Acknowledge
200
C8
Update PDN Connection Request
201
C9
Update PDN Connection Response
211
D3
Modify Access Bearers Request
212
D4
Modify Access Bearers Response
231
E7
MMBS Session Start Request
232
E8
MMBS Session Start Response
233
E9
MMBS Session Update Request
234
EA
MMBS Session Update Response

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