Cisco 2960 models (-S, -X and –XR) support different types of stacking i.e. FlexStack and FlexStack-Plus with all switches in a FlexStack or FlexStack-Plus stack acting as a single switching unit. FlexStack and FlexStack-Plus provide a unified data plane and single configuration for a group of stacked Cisco Catalyst 2960-S, 2960-X, and 2960-XR switches.
FlexStack was introduced on the 2960-S in 2010. FlexStack-Plus was introduced in 2013 with the 2960-X and 2960-XR models of Cisco Catalyst Ethernet switches.
FlexStack-Plus is an improvement over FlexStack because it doubles the speed of the stack bandwidth and allows for more members to join the stack. The FlexStack-Plus bandwidth for a single stack member is 40Gbps compared to 20Gbps with FlexStack. FlexStack-Plus is backward compatible with 2960-S and FlexStack.
The differences between FlexStack and FlexStack-Plus are identified below –
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