The "Capabilities-Update-Request" Diameter command code
The "Capabilities-Update-Request" Diameter command uses the command code "328".
It has the REQ bit.
It is part of the Diameter Capabilities Update application.
It is defined in the IETF RFC 6737: The Diameter Capabilities Update Application specification.
It contains the following AVPs:
| AVP code | AVP name | AVP type | AVP requirement |
|---|---|---|---|
| 264 | Origin-Host | DiameterIdentity | Required (1) |
| 296 | Origin-Realm | DiameterIdentity | Required (1) |
| 257 | Host-IP-Address | IPAddress | Required (1) |
| 266 | Vendor-Id | VendorId | Required (1) |
| 269 | Product-Name | UTF8String | Required (1) |
| 278 | Origin-State-Id | Unsigned32 | Optional (up to 1) |
| 265 | Supported-Vendor-Id | VendorId | Optional |
| 258 | Auth-Application-Id | AppId | Optional |
| 259 | Acct-Application-Id | AppId | Optional |
| 260 | Vendor-Specific-Application-Id | Grouped | Optional |
| 267 | Firmware-Revision | Unsigned32 | Optional (up to 1) |
< Capabilities-Update-Request > ::= < Diameter-Header: 328, REQ, 10 >
{ Origin-Host }
{ Origin-Realm }
{ Host-IP-Address }
{ Vendor-Id }
{ Product-Name }
[ Origin-State-Id ]
* [ Supported-Vendor-Id ]
* [ Auth-Application-Id ]
* [ Acct-Application-Id ]
* [ Vendor-Specific-Application-Id ]
[ Firmware-Revision ]
| Update source | Insertion date |
|---|---|
| 3GPP | 2026-04-26 07:12 |
| Wireshark | 2026-04-26 07:12 |