Question 411 · 1003 in bank
Select 2A network administrator has designed a network with two multilayer switches on the distribution layer, which act as default gateways for the end hosts. Which two technologies allow every end host in a VLAN to use both gateways? (Choose two.)
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Answer: BC
Explanation
I'm going for B and C. VRRP - and HSRP suffer from that fact that they both have one primary/master router which provides the _single_ default gateway (single VIP, single virtual MAC) MHSRP provides two Virtual IPs, so end hosts would have to be configured with two default gateways - not common for end hosts. The same concept would apply to multiple VRRP groups. GLBP provides one virtual IP and multiple virtual MAC Addresses; the ARP replies from the Active Virtual Gateway to the hosts will use all the virtual MACs (one for each virtual forwarder) in round robin fashion, so B is correct. which leaves VSS, where both ML Switches form a single virtual switch and no FHRP is required at all to use them both.
Source: Adapted from community discussion — laterst






