What term describes multiple virtual MAC addresses used for load sharing in a VSX environment?

What term describes multiple virtual MAC addresses used for load sharing in a VSX environment?

• A. VMACs
• B. VLANs
• C. MIBs
• D. GTKs

Answer: (A)

VMACs are virtual MAC addresses used by a VSX pair to share load between the two members. By exposing multiple MAC addresses, the switches can distribute traffic across both units and maintain seamless operation if one member fails. This enables efficient load balancing and redundancy for multi-path traffic. VLANs, MIBs, and GTKs serve different purposes—VLANs segment traffic, MIBs relate to network management data, and GTKs are encryption keys for wireless security—so they don’t describe the mechanism of using multiple MACs for load sharing.

VMACs are virtual MAC addresses used by a VSX pair to share load between the two members. By exposing multiple MAC addresses, the switches can distribute traffic across both units and maintain seamless operation if one member fails. This enables efficient load balancing and redundancy for multi-path traffic. VLANs, MIBs, and GTKs serve different purposes—VLANs segment traffic, MIBs relate to network management data, and GTKs are encryption keys for wireless security—so they don’t describe the mechanism of using multiple MACs for load sharing.