Which protocol is recognized for better scalability within a Cisco autonomous system?

Enhanced Interior Gateway Routing Protocol (EIGRP) is recognized for better scalability within a Cisco autonomous system due to its advanced features and capabilities that allow it to efficiently manage larger and more complex networks. EIGRP uses a hybrid routing protocol approach, incorporating both distance-vector and link-state technologies, which enables it to maintain a smaller routing table compared to distance-vector protocols and achieve quicker convergence times.

The scalability of EIGRP is enhanced by its ability to support variable-length subnet masking (VLSM) and Classless Inter-Domain Routing (CIDR), facilitating the efficient use of IP address space and allowing for larger networks to be organized without wastage of addresses. Additionally, EIGRP utilizes a unique metric based on bandwidth and delay, allowing it to make more informed routing decisions and to better adapt to changes in network conditions compared to traditional protocols.

This combination of features makes EIGRP particularly suited for larger autonomous systems, where the need for efficient management, rapid convergence, and effective use of resources is critical. Other protocols like the Routing Information Protocol (RIP), while simpler, lack the same level of scalability and efficiency, making them less ideal for large networks. Similarly, Open Shortest Path First (OSPF) and Interior Gateway Routing Protocol