FlexStack-Plus is the name of the stacking technology used by the Cisco Catalyst 2960-X and 2960-XR Series switches. FlexStack-Plus is specific to the 2960-X and 2960-XR Series of switches.
Quick Specs
| tacking Item | C2960-X | C2960-XR |
| Bidirectional stack bandwidth | 80Gbps | 80Gbps |
| Hot-swappable stack module | Yes | Yes |
| Max stack members | 8 | 8 |
| Supports FlexStack | Yes | No |
| Supports FlexStack-Plus | Yes | Yes |
Mixed Stacks: FlexStack and FlexStack-Plus
The 2960-S and 2960-X support a mixed stack of 2960 models. All these 2960 models run the FlexStack protocol, allowing them to be stacked together into a single stack. The exception is the 2960-XR does not stack with either the 2960-X or the 2960-S. The 2960-XR has the IP-Lite feature set, and this is not compatible with the LAN Base feature set on the 2960-X and 2960-XR.
Table 2 shows all the allowed mixed stack combinations. All 2960 models with the LAN Base Cisco IOS Software feature set can stack together.
| Mixed Stack Combination | 2960-XR IP Lite | 2960-X LAN Base | 2960-S LAN Base |
| 2960-XR IP Lite | Yes | No | No |
| 2960-X LAN Base | No | Yes | Yes |
| 2960-S LAN Base | No | Yes | Yes |
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