The "TWAN-Access-Info" AVP

The "TWAN-Access-Info" Diameter AVP, which is of type Grouped, is defined by 3GPP (vendor ID 10415) and uses the AVP code "1510".

It is part of the Non-3GPP-User-Data grouped AVP.

It is a grouped AVP, which can hold the following nested AVPs:

AVP code	AVP name	AVP type	AVP requirement
1511	Access-Authorization-Flags	Unsigned32
1509	WLAN-Identifier	Grouped

Its AVP-header format definition is the following:

< TWAN-Access-Info > ::= < AVP-Header: 1510, 10415 > 
* [ Access-Authorization-Flags ]
* [ WLAN-Identifier ]

Update source	Insertion date
Wireshark	2026-04-26 07:13