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Difficulty: EasyHigh Availability and Redundancy Concepts

Match each high-availability concept or protocol on the left with its correct operational description on the right.

  • HSRPCisco-proprietary First Hop Redundancy Protocol used to provide default gateway failover.
  • LACPIEEE standard protocol (802.3ad) used to combine multiple physical ports into a single logical interface.
  • VIPA shared IP address assigned to redundant routers that endpoints use as their default gateway.
  • CARPAn open-source redundancy protocol that allows multiple hosts to share an IP address and MAC address.

Answer

HSRP matches with Cisco-proprietary First Hop Redundancy Protocol; LACP matches with IEEE standard link aggregation protocol; VIP matches with shared IP address for default gateway failover; CARP matches with open-source redundancy protocol allowing shared IP and MAC addresses.
Each concept correctly matches its underlying technology: HSRP is Cisco's proprietary gateway failover protocol, LACP performs IEEE 802.3ad interface aggregation, VIP acts as the shared virtual gateway address, and CARP provides open-source address redundancy.

Step-by-Step Solution

1
Identify the primary function of HSRP.
Pair HSRP with its Cisco-proprietary first-hop gateway redundancy function.
HSRP was developed by Cisco to enable seamless switchover between active and standby routers.
2
Identify the standard purpose of LACP.
Pair LACP with the IEEE 802.3ad link aggregation protocol description.
LACP negotiates combining multiple physical interfaces into a single logical trunk interface.
3
Define the role of a Virtual IP (VIP) in network redundancy.
Pair VIP with the shared IP address targeted by client default gateways.
Clients send traffic to the Virtual IP so that failover between redundant physical routers is transparent to hosts.
4
Identify the characteristics of CARP.
Pair CARP with the open-source address redundancy protocol description.
CARP is an open-source protocol used primarily in BSD systems to allow multiple routers to share IP/MAC addresses.

Key Concept

High Availability and Gateway/Link Redundancy Protocols
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Topics

High Availability and Redundancy Concepts

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