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Data Center Fundamentals by Maurizio Portolani, Mauricio Arregoces - CCIE No. 3285

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Chapter 13. Layer 3 Protocol Essentials

This chapter covers the following topics and their relation to the Data Center architecture and design:

• How Address Resolution Protocol (ARP) interacts with routers and servers to translate the IP addresses to the MAC addresses on the local subnet and how ARP interoperates with the MAC address table of the Layer 2 switches

• The operations of Hot Standby Routing Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), and Gateway Load Balancing Protocol (GLBP) for the purpose of static routing and for the default gateway functionality in the server farm

• The Open Shortest Path First (OSPF) essentials; the link-state advertisement (LSA) types and scope in the areas; the OSPF metrics; OSPF summarization, ...

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