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CCNP SWITCH 642-813 Official Certification Guide by David Hucaby

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Chapter 13. Layer 3 High Availability

This chapter covers the following topics that you need to master for the CCNP SWITCH exam:

Router Redundancy in Multilayer Switching—This section discusses three protocols that are available on Catalyst switches to provide redundant router or gateway addresses. The protocols include Hot Standby Routing Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), and Gateway Load Balancing Protocol (GLBP).

Supervisor and Route Processor Redundancy—This section covers the methods that can be used on some Catalyst switch platforms to operate an active-standby pair of hardware modules in one chassis. The redundancy modes include route processor redundancy (RPR), RPR+, stateful switchover (SSO), and nonstop forwarding ...

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