The appearance of the ATN, gives many benefits to its users, such as, high availability, scaleability, policy based routing, mobile communications, error detection, security.
ELSA ATN Routers are specifically developed to take the responsibility for routing and maintaining the internetwork's operational status.
specification:
* Routing information exchange :
- ISO/IEC 10747 inter domain routing exchange protocol
- ISO/IEC 10589 IS - IS Intra domain protocol
- ISO/IEC 9542 ES - IS Routing exchange protocol
- ISO/IEC 8473-1-2-3 Connectionless mode network service protocol
* Subnetwork :
- X-25