- It carries the geographical information of the organization.
- It is a globally unique autonomous system number that is assigned by IANA.
- It functions as a process ID in the operation of the router.
- It identifies the ISP that provides the connection to network of the organization.
Explanation: The autonomous system number used in the EIGRP configuration is not associated with the Internet Assigned Numbers Authority (IANA) globally assigned autonomous system numbers that are used by external routing protocols. It just functions as a process ID, which is necessary because a router may run multiple instances of EIGRP. Each instance of EIGRP can be configured to support and exchange routing updates for different networks. An organization has the freedom to choose its own AS number in the EIGRP configuration.