What is the difference between HSRP v1 and v2?
What is the difference between HSRP v1 and v2?
HSRP version 2 advertises and learns millisecond timer values. This change ensures stability of the HSRP groups in all cases. In HSRP version 1, group numbers are restricted to the range from 0 to 255. HSRP version 2 expands the group number range from 0 to 4095.
What is HSRP version 2?
HSRP, HSRP version 2. Hot Standby Routing Protocol (HSRP) is Cisco standard of providing redundancy for IP host configured in a LAN network with default gateway address.It enables a set of router interfaces to work together to present the appearance of a single virtual router or default gateway to the hosts on a LAN.
What is HSRP preempt?
the preempt is to allow the once active device to take over for the stanby once it comes back online.
What is the multicast and port number used for HSRP version 2?
0.2. HSRP version 2 uses multicast address 224.0. 0.102 for its communication.
What is AVG and AVF in Glbp?
AVG role is used to load-balance and respond to ARP requests. AVF role manages one or more virtual MACs and is responsible for packet forwarding. AVG redundancy is controlled by GLBP priority and AVF redundancy is implemented using AVF weight value and two additional timers.
Which MAC address is an HSRP version 2?
0000.0c9f
HSRP 2 uses the virtual MAC address of 0000.0c9f.
What port does VRRP use?
Hot Standby Router Protocol (HSRP) and Virtual Router Redundancy Protocol (VRRP)
| HSRP | VRRP |
|---|---|
| HSRP version 1 uses UDP port number 1985 and multicast address 224.0.0.2 and version 2 uses UDP port 1985 and 224.0.0.102 as multicast address. | VRRP uses multicast address 224.0.0.18 and protocol number 112 |
Why do we use preempt in HSRP?
You want to ensure that a particular router is always selected as the “active” HSRP router, whenever it is up and functioning. The standby preempt feature means that the router with the higher priority is always the active router if it is available.
What is HSRP preempt delay?
The preempt delay means that, when the interface gets up it will detect that there is already an hsrp neighbour active. Thus, that active router will continue forward traffic, and this router will wait for configured time until it takes over the role.
Does HSRP use multicast?
HSRP uses multicast address 224.0. 0.2 or 224.0. 0.102, for versions one and two respectively. The standby router does not take any action except to listen for the hello messages from the active router.
