The "3GPP-Update-VCSG-Location-Request" Diameter command code
The "3GPP-Update-VCSG-Location-Request" Diameter command uses the command code "8388638".
It has the REQ and PXY bits.
It is part of the 3GPP S7a application.
It is defined in the 3GPP TS 29.272: Evolved Packet System (EPS); Mobility Management Entity (MME) and Serving GPRS Support Node (SGSN) related interfaces based on Diameter protocol 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) |
| 260 | Vendor-Specific-Application-Id | Grouped | Optional (up to 1) |
| 277 | Auth-Session-State | Enumerated | Required (1) |
| 264 | Origin-Host | DiameterIdentity | Required (1) |
| 296 | Origin-Realm | DiameterIdentity | Required (1) |
| 293 | Destination-Host | DiameterIdentity | Optional (up to 1) |
| 283 | Destination-Realm | DiameterIdentity | Required (1) |
| 1 | User-Name | UTF8String | Required (1) |
| 701 | MSISDN | OctetString | Optional (up to 1) |
| 1489 | SGSN-Number | OctetString | Optional (up to 1) |
| 628 | Supported-Features | Grouped | Optional |
| 1639 | UVR-Flags | Unsigned32 | Required (1) |
| 284 | Proxy-Info | Grouped | Optional |
| 282 | Route-Record | DiameterIdentity | Optional |
< 3GPP-Update-VCSG-Location-Request > ::= < Diameter-Header: 8388638, REQ, PXY, 16777308 >
< Session-Id >
[ DRMP ]
[ Vendor-Specific-Application-Id ]
{ Auth-Session-State }
{ Origin-Host }
{ Origin-Realm }
[ Destination-Host ]
{ Destination-Realm }
{ User-Name }
[ MSISDN ]
[ SGSN-Number ]
* [ Supported-Features ]
{ UVR-Flags }
* [ Proxy-Info ]
* [ Route-Record ]
| Update source | Insertion date |
|---|---|
| 3GPP | 2026-04-26 07:12 |
| Wireshark | 2026-04-26 07:12 |