A network administrator is evaluating the protocol mechanics and default operational behaviors of HSRPv2 and VRRPv2 across an enterprise distribution layer. Which two statements accurately describe the functional differences in preemption, virtual IP assignment, or virtual MAC addressing between HSRP and VRRP? (Select two.)
- VRRP permits configuring the virtual IP address to match the physical IP address assigned to an interface, whereas HSRP requires the virtual IP address to be an unassigned address within the local subnet.Cevap
- VRRP enables preemption by default for participating routers, whereas HSRP requires preemption to be explicitly configured on candidate standby routers.Cevap
- CHSRPv2 uses the well-known MAC address prefix range 0000.5E00.01xx, whereas VRRPv2 utilizes 0000.0C9F.Fxxx for virtual gateway addressing.
- DAssigning an active router's physical IPv4 address as the HSRP virtual IP address is supported in HSRPv2 and automatically elevates the router priority to 255.
Cevap
The correct statements are that VRRP permits configuring the virtual IP address to match a physical IP address (IP address owner) while HSRP requires a unique IP, and VRRP enables preemption by default whereas HSRP requires explicit preemption configuration.
VRRP supports IP address ownership, allowing the virtual IP address to be identical to the primary physical IP address of an interface (which automatically assigns priority 255 to that router). HSRP does not support this and mandates that the virtual IP address must be an unused IP on the subnet. Additionally, VRRP preemption is enabled by default, whereas HSRP requires manual preemption configuration.
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HSRP vs VRRP Operational & Architectural Comparison