Cisco Cisco Packet Data Gateway (PDG)
GTPP Accounting Overview
▀ GTPP Message Types
▄ GTPP Interface Administration and Reference, StarOS Release 19
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GTPP Message Types
GTPP defines a set of messages between two associated nodes. The GTPP messages defined are shown in the following
table. The messages introduced by GTPP are in boldface letters. The other messages are inherited from GTPP protocol.
table. The messages introduced by GTPP are in boldface letters. The other messages are inherited from GTPP protocol.
Table 1. GTPP Messages
Message Type value (Decimal) GTPP Message
1
Echo Request
2
Echo Response
3
Version Not Supported
4
Node Alive Request
5
Node Alive Response
6
Redirection Request
7
Redirection Response
240
Data Record Transfer Request
241
Data Record Transfer Response
Others
Reserved for future use
The GTPP introduced the following signaling message types as Path Management Messages:
Node Alive Request
Node Alive Response
Redirection Request
Redirection Response
Important:
Echo messages and node-alive messages are not supported if the transport layer protocol is TCP.
The following signaling messages are grouped under the category “Record Transmission Messages”:
Data Record Transfer Request
Data Record Transfer Response
The reserved fields in the signaling messages can be filled with ones, and are intended for future use.
GTPP reuses the GTPP Cause values. The message type numbers required for the newly introduced GTPP messages
have been derived from the unallocated message type number space specified in the GTPP message table defined in TS
29.060.
have been derived from the unallocated message type number space specified in the GTPP message table defined in TS
29.060.
The number ranges allocated for GTPP are as follows:
For Information Elements: 117-127 (TV type fields) and 239-254 (for TLV type fields).