HSRP (Scorching Standby Router Protocol), VRRP (Digital Router Redundancy Protocol), and GLBP (Gateway Load Balancing Protocol) are all protocols used for offering community redundancy and excessive availability in an area space community (LAN) surroundings. They function on the community layer (Layer 3) of the OSI mannequin and are primarily utilized in situations the place a number of routers are linked to the identical LAN phase.
More often than not whereas deciding over First hop redundancy protocol in a community, administrator and designers begin trying on execs and cons of every of those protocols – Cisco proprietary HSRP / GLBP or Open Normal VRRP. Under differentiation of HSRP vs VRRP vs GLBP, will assist perceive the protocols higher and the way one protocol edges over the opposite.
Right here’s a quick comparability of those protocols:
HSRP (Scorching Standby Router Protocol):
- HSRP is a Cisco proprietary protocol.
- It permits for the creation of a digital router, with a number of bodily routers collaborating in an HSRP group.
- One router is elected because the lively router, which handles visitors forwarding, whereas the others act as standby routers.
- The lively router sends periodic hi there messages to the standby routers to make sure their availability.
- Within the occasion of the lively router’s failure, one of many standby routers is elected as the brand new lively router.
- HSRP helps IPv4 and IPv6.
VRRP (Digital Router Redundancy Protocol)
- VRRP is an open customary protocol.
- Much like HSRP, VRRP permits for the creation of a digital router, with a number of bodily routers collaborating in a VRRP group.
- One router is elected because the grasp router, answerable for visitors forwarding, whereas the others act as backup routers.
- The grasp router sends periodic commercials to the backup routers to keep up their availability.
- If the grasp router fails, one other backup router takes over as the brand new grasp router.
- VRRP helps IPv4 and IPv6.
GLBP (Gateway Load Balancing Protocol)
- GLBP is a Cisco proprietary protocol.
- GLBP gives not solely redundancy but in addition load balancing for outgoing visitors.
- A number of routers take part in a GLBP group, with one router performing because the lively digital gateway and the others as backup digital gateways.
- The lively digital gateway handles visitors forwarding and likewise assigns a digital MAC deal with to every member router.
- Hosts on the LAN phase use the digital gateway’s digital IP deal with as their default gateway.
- GLBP distributes visitors among the many backup digital gateways utilizing completely different load balancing strategies.
- If the lively digital gateway fails, one other backup digital gateway takes over as the brand new lively gateway.
- GLBP helps solely IPv4.
Associated- VRRP V2 vs V3
Comparability Desk: HSRP vs VRRP vs GLBP
Under desk summarizes the variations between the three sort of protocols:
Obtain the comparability desk: HSRP vs VRRP vs GLBP
Conclusion
HSRP, VRRP, and GLBP are all used to offer redundancy in a LAN surroundings. HSRP and VRRP create a digital router with one lively router and standby routers, whereas GLBP provides load balancing capabilities along with redundancy. HSRP and GLBP are Cisco proprietary protocols, whereas VRRP is an open customary protocol. The selection between these protocols is dependent upon the precise necessities of the community and the tools used.
