Which NHRP features active and standby virtual gateways?
A.
GLBP
B.
VRRP
C.
HSRP
D.
SSO
E.
NSF
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GLBP is a/a mode
HSRP is a/s mode cisco manufacturer
VRRP is a/s mode other manufacturer
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Bad question writing for that answer:
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.
Technically a virtual gateway is GLBP, virtual router is HSRP.
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Very tricky question, it’s not clear at all. I think Sunny and anon are right. I would probably choose GLBP in the exam question, but I’m not sure.
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GLBP Virtual Gateway Redundancy
GLBP operates virtual gateway redundancy in the same way as HSRP. One gateway is elected as the AVG, another gateway is elected as the standby virtual gateway, and the remaining gateways are placed in a listen state.
If an AVG fails, the standby virtual gateway will assume responsibility for the virtual IP address. A new standby virtual gateway is then elected from the gateways in the listen state.
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