Chapter 7. Availability and Redundancy

Terms you'll need to understand:

  • Route Processor Redundancy (RPR) and RPR+

  • Proxy ARP and ICMP Router Discover Protocol (IRDP)

  • Hot Standby Routing Protocol (HSRP)

  • Virtual Router Redundancy Protocol (VRRP)

Techniques you'll need to master:

  • Knowing the similarities and differences between RPR and RPR+

  • Using uplink interfaces for redundant switch connections

  • Understanding the different methods of default gateway redundancy

  • Knowing the HSRP components, its operation, and configuration

  • Understanding the components and operation of VRRP

As you deploy more and more critical services in your network, redundancy and availability become key issues. There are many types of availability and redundancy. This chapter focuses ...

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