A network architect is explaining the differences between deploying two switches in an HP
Intelligent Resiliency Framework (IRF) virtual switch and deploying two switches that implement
standard Virtual Routing Redundancy Protocol (VRRP). Which statement correctly describes an
advantage of IRF?
A.
IRF failover occurs in 3 to 4 seconds, whereas VRPF failover occurs in 10 or more seconds
B.
Unlike VRRP, which requires as least two addresses to be listed. Dynamic Host Configuration
Protocol (DHCP) scopes list a single IP address for the default gateway
C.
The IRF virtual switch runs a separate routing in each member, which enhances the
redundancy and reliability of the overall solution
D.
Multiple IRF members can actively route traffic for the same subnet and use the same IP
address and routing control plane
B is correct. From Study guide:
Compare IRF and VRRP as default router redundancy options
IRF allows every device in the group to use the same IP address at the same time that they share the routing responsibilities. This means that:
• DHCP scopes list a single IP address for the default router.
• The subnet only needs to allocate a single IP address for routing devices.
• Routers that implement OSPF only establish adjacency with the IRF master. Routers that have static routes through the IRF virtual switch only require one route.
• Setting up the IRF virtual switch to support routing redundancy is simple. Administrators configure IP addresses and routing features on the IRF virtual switch in exactly the same way that they would set up a single routing switch.
• Routing failover occurs in milliseconds even if the IRF master fails.
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Should be D. Same as #106.
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