HP0-Y43 · Question #43
Two HP Provision switches are configured as virtual routers. How does the VRRP backup know if the VRRP master is available and functioning?
The correct answer is D. The VRRP backup listens for the master's VRRP advertisements. A failure to receive a multicast packet from the master router for a period longer than three times the advertisement timer causes the backup routers to assume that the master router is dead. The virtual router then transitions into an unsteady state and an election process is…
Question
Two HP Provision switches are configured as virtual routers. How does the VRRP backup know if the VRRP master is available and functioning?
Options
- AThe VRRP master and backup exchange hello packets over a VLAN dedicated to VRRP.
- BThe VRRP backup sends VRRP requests, and the master replies by sending a VRRP ACK message.
- CThe VRRP master and backup both implement bi-directional forwarding detection (BFD).
- DThe VRRP backup listens for the master's VRRP advertisements.
How the community answered
(37 responses)- A3% (1)
- B16% (6)
- C5% (2)
- D76% (28)
Explanation
A failure to receive a multicast packet from the master router for a period longer than three times the advertisement timer causes the backup routers to assume that the master router is dead. The virtual router then transitions into an unsteady state and an election process is initiated to select the next master router from the backup routers. This is fulfilled through the use of multicast
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