Is Diameter a AAA protocol?

Diameter is a next-generation industry-standard protocol used to exchange authentication, authorization and accounting (AAA) information in Long-Term Evolution (LTE) and IP Multimedia Systems (IMS) networks.

What port does Diameter use?

3868
The IANA has assigned TCP and SCTP port number 3868 to Diameter, as stated in section 11.4 of RFC 6733.

Where is Diameter protocol used?

The Diameter Protocol provides authentication, authorization, and accounting (AAA) messaging services for network access and data mobility applications in 3G, IP Multimedia Systems (IMS), and LTE/4G networks.

Which interface is based on AAA protocol?

Usage of AAA servers in CDMA networks Types of AAA servers include the following: Access Network AAA (AN-AAA): Communicates with the RNC in the Access Network (AN) to enable authentication and authorization functions to be performed at the AN. The interface between AN and AN-AAA is known as the A12 interface.

What is Radius and Diameter protocol?

Radius is a connectionless protocol, so it do not need any session creation before its operation. But Diameter is a connection oriented like TCP. As a transport protocol, Radius uses UDP (User Datagram Prtocol) and Diameter uses TCP (Transmission Control Protocol) or SCP.

What is RADIUS and Diameter protocols?

What is realm in diameter protocol?

Realms Overview. A realm is an internet domain whose Fully-Qualified Domain Names (FQDNs) typically all share a domain designation. For example, example.com could be a Realm name, and the addressable hosts in the Realm would have names like host1.example.com, host2.subdomain1.example.com, and so on.

What is AAA server in LTE?

Enhanced Security for IMS and LTE Services. The Authentication Authorization Accounting (AAA) Server provides access, control and security for operator networks by supporting a set of protocols that mediate and track user access by authenticating, authorizing and accounting for mobile user activities.

Which protocols are implementations of AAA?

TACACS+ and RADIUS are the predominant security server protocols used for AAA with network access servers, routers, and firewalls. These protocols are used to communicate access control information between the security server and the network equipment.

What is AVP in Diameter protocol?

Diameter AVPs are the basic unit inside the Diameter message that carries the Data(Authentication Data , Security Data , Data pertaining to Application etc). There must be at least one AVP inside Diameter message.