diameter-db

The "Server-Assignment-Request" Diameter command code

The "Server-Assignment-Request" Diameter command is defined by and uses the command code "301".

It has the REQ and PXY bits.

It is part of the 3GPP SWx, 3GPP Wx, 3GPP Cx, 3GPP STa, 3GPP SWm, 3GPP S6b, 3GPP Pr applications.

It is defined in the 3GPP TS 29.273: Evolved Packet System (EPS); 3GPP EPS AAA interfaces 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 Required (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)
1423 Context-Identifier Unsigned32 Optional (up to 1)
486 MIP6-Agent-Info Grouped Optional (up to 1)
284 Proxy-Info Grouped Optional
600 Visited-Network-Identifier OctetStringOrUTF8 Optional (up to 1)
282 Route-Record DiameterIdentity Optional
601 Public-Identity UTF8String Optional
1 User-Name UTF8String Required (1)
634 Wildcarded-Public-Identity UTF8String Optional (up to 1)
614 Server-Assignment-Type Enumerated Required (1)
602 Server-Name UTF8String Required (1)
1612 Active-APN Grouped Optional
621 OC-Supported-Features Grouped Optional (up to 1)
624 User-Data-Already-Available Enumerated Required (1)
628 Supported-Features Grouped Optional
639 SCSCF-Restoration-Info Grouped Optional (up to 1)
1401 Terminal-Information Grouped Optional (up to 1)
648 Multiple-Registration-Indication Enumerated Optional (up to 1)
1538 Emergency-Services Unsigned32 Optional (up to 1)
650 Session-Priority Enumerated Optional (up to 1)
655 SAR-Flags Unsigned32 Optional (up to 1)
664 Failed-PCSCF Grouped Optional (up to 1)
Its CCF definition is the following:
< Server-Assignment-Request > ::= < Diameter-Header: 301, REQ, PXY > 
< Session-Id >
[ DRMP ]
{ Vendor-Specific-Application-Id }
{ Auth-Session-State }
{ Origin-Host }
{ Origin-Realm }
[ Destination-Host ]
{ Destination-Realm }
[ Context-Identifier ]
[ MIP6-Agent-Info ]
* [ Proxy-Info ]
[ Visited-Network-Identifier ]
* [ Route-Record ]
* [ Public-Identity ]
{ User-Name }
[ Wildcarded-Public-Identity ]
{ Server-Assignment-Type }
{ Server-Name }
* [ Active-APN ]
[ OC-Supported-Features ]
{ User-Data-Already-Available }
* [ Supported-Features ]
[ SCSCF-Restoration-Info ]
[ Terminal-Information ]
[ Multiple-Registration-Indication ]
[ Emergency-Services ]
[ Session-Priority ]
[ SAR-Flags ]
[ Failed-PCSCF ]





Update source Insertion date
3GPP 2026-04-26 07:12
Wireshark 2026-04-26 07:12