In GLBP, which router will answer on client ARP requests?
A.
all active AVF routers as the first response is used by the client
B.
the AVG router, replying with a different AVF MAC address each time
C.
a random AVF router, based on a GLBP seed hash key
D.
only the AVG router that received the ARP request first
Explanation:
LBP Active Virtual Gateway
Members of a GLBP group elect one gateway to be the active virtual gateway (AVG) for that
group. Other group members provide backup for the AVG in the event that the AVG becomes
unavailable. The AVG assigns a virtual MAC address to each member of the GLBP group. Each
gateway assumes responsibility for forwarding packets sent to the virtual MAC address assigned
to it by the AVG. These gateways are known as active virtual forwarders (AVFs) for their virtual
MAC address.The AVG is responsible for answering Address Resolution Protocol (ARP) requests for the virtual
IP address.
Load sharing is achieved by the AVG replying to the ARP requests with different virtual MAC
addresses.http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ft_glbp.html#wp1039649