Given an enterprise network that spans multiple geographic locations, which dynamic routing protocol would be the BEST to implement for optimal scalability and interoperability among various vendors' equipment?
Open Shortest Path First (OSPF) is the best choice for an enterprise network spanning multiple geographic locations due to its support for large and complex topologies and its vendor-neutral specification, which ensures interoperability among different vendors' equipment. While EIGRP also supports large networks, it is less ideal in environments that require vendor interoperability since it is Cisco proprietary, potentially limiting its use with equipment from other vendors. BGP is generally used for Internet routing between autonomous systems rather than internal enterprise networks, and RIP's limitations in scalability make it unsuitable for large networks.
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What are the key features of OSPF that make it suitable for large networks?
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How does OSPF ensure interoperability among different vendors?
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Why is EIGRP not recommended for environments needing vendor interoperability?