Comparing Cisco 6500 VSS and Nexus VPC MultiChassis Link Aggregation

Cisco 6500 switches have a feature called Virtual Switching System (VSS) that creates a virtual logical switch from two separate Cisco 6500 switches. This creates an active control plane and a standby control plane for optimizing availability for the switches. The VSS is an IOS solution that allows for aggregation and load balancing of Layer 2 uplinks from the access switch to both Cisco 6500 distribution switches. The aggregation and load balancing of uplinks to the VSS is MultiChassis EtherChannel (MEC).



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