The "GCS-Action-Answer" Diameter command code
The "GCS-Action-Answer" Diameter command is defined by and uses the command code "8388662".
It has the PXY bit.
It is part of the 3GPP MB2c application.
It is defined in the 3GPP TS 29.468: Group Communication System Enablers for LTE (GCSE_LTE); MB2 reference point; Stage 3 specification.
It contains the following AVPs:
| AVP code | AVP name | AVP type | AVP requirement |
|---|---|---|---|
| 263 | Session-Id | UTF8String | Fixed (1) |
| 301 | DRMP | Enumerated | Optional (up to 1) |
| 258 | Auth-Application-Id | AppId | Required (1) |
| 277 | Auth-Session-State | Enumerated | Required (1) |
| 264 | Origin-Host | DiameterIdentity | Required (1) |
| 296 | Origin-Realm | DiameterIdentity | Required (1) |
| 268 | Result-Code | Enumerated | Optional (up to 1) |
| 297 | Experimental-Result | Grouped | Optional (up to 1) |
| 281 | Error-Message | UTF8String | Optional (up to 1) |
| 294 | Error-Reporting-Host | DiameterIdentity | Optional (up to 1) |
| 279 | Failed-AVP | Grouped | Optional (up to 1) |
| 278 | Origin-State-Id | Unsigned32 | Optional (up to 1) |
| 292 | Redirect-Host | DiameterURI | Optional |
| 261 | Redirect-Host-Usage | Enumerated | Optional (up to 1) |
| 262 | Redirect-Max-Cache-Time | Unsigned32 | Optional (up to 1) |
| 284 | Proxy-Info | Grouped | Optional |
| 628 | Supported-Features | Grouped | Required (1) |
| 3510 | TMGI-Allocation-Response | Grouped | Optional (up to 1) |
| 3513 | TMGI-Deallocation-Response | Grouped | Optional |
| 3505 | MBMS-Bearer-Response | Grouped | Optional |
| 932 | Restart-Counter | Unsigned32 | Optional (up to 1) |
| 650 | Load | Grouped | Optional |
< GCS-Action-Answer > ::= < Diameter-Header: 8388662, PXY, 16777335 >
< Session-Id >
[ DRMP ]
{ Auth-Application-Id }
{ Auth-Session-State }
{ Origin-Host }
{ Origin-Realm }
[ Result-Code ]
[ Experimental-Result ]
[ Error-Message ]
[ Error-Reporting-Host ]
[ Failed-AVP ]
[ Origin-State-Id ]
* [ Redirect-Host ]
[ Redirect-Host-Usage ]
[ Redirect-Max-Cache-Time ]
* [ Proxy-Info ]
{ Supported-Features }
[ TMGI-Allocation-Response ]
* [ TMGI-Deallocation-Response ]
* [ MBMS-Bearer-Response ]
[ Restart-Counter ]
* [ Load ]
| Update source | Insertion date |
|---|---|
| 3GPP | 2026-04-26 07:12 |
| Wireshark | 2026-04-26 07:12 |