HSRP versus VRRP

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Posted on Thursday, March 26, 2009
This article was posted in Network

HSRP ( Hot Standby Routing Protocol )

  • HSRP is a Cisco Proprietary protocol
  • HSPR is slow comparative to VRRP, HSRP hello time is 3 sec & hold time is 10 sec.
  • Group in HSRP is called Standby group
  • HSRP have one active router & one standby router
  • HSRP provide redundancy only for IP which is defining in RFC-1918
  • In HSRP standby group & active router will have different IP address from same subnet
  • HSRP uses multicast address 224.0.0.2 with UDP port 1985
  • HSRP don’t have any such kind of feature.
     

VRRP ( Virtual Router Routing Protocol )

  • VRRP is IEEE standard which can support multi Vendor.
  • VRRP hello time is 1 sec & hello time is 3 Sec.
  • Group in VRRP is called VRRP group.
  • VRRP can have more than one standby router called backup router.
  • VRRP provide redundancy for valid IP address.
  • In VRRP; Master Router may have same IP address as Virtual router group.
  • An advantage of VRRP is if we have limited valid IP in that case we can use single IP for master router and for group as well
  • VRRP use multicast address 224.0.0.18 with port 112.
  • VRRP has priority 0 concept .
     

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