4. Different between HSRP , VRRP , GLBP

Question

Accepted Answer

HSRP, VRRP, and GLBP are all protocols used for providing redundancy in a network.

HSRP stands for Hot Standby Router Protocol and is a Cisco proprietary protocol.
VRRP stands for Virtual Router Redundancy Protocol and is an open standard protocol.
GLBP stands for Gateway Load Balancing Protocol and is also a Cisco proprietary protocol.
HSRP and VRRP both provide redundancy by allowing multiple routers to share a virtual IP address.
GLBP provides redundancy as well as load balancing by distributing traffic across multiple routers.
HSRP and VRRP use a primary and backup router, while GLBP uses multiple active routers.
HSRP and VRRP use a priority system to determine which router will be the active router, while GLBP uses a round-robin algorithm.
HSRP and VRRP have a default priority of 100, while GLBP has a default priority of 100 and a maximum of 255.
HSRP and VRRP have a virtual MAC address, while GLBP has a virtual IP address and virtual MAC address.
HSRP and VRRP are commonly used in small to medium-sized networks, while GLBP is used in larger networks with higher traffic loads.

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