With FlexStack-Plus technology, up to eight members can be joined into a single stack. The FlexStack-Plus bandwidth for a single stack port is 20 Gbps. Layer 2 protocols support the entire switch stack as a single entity in the network. The stack members use the Cisco FlexStack-Plus technology to work together as a unified system. If the stack master is running the cryptographic universal software image (supports encryption), the encryption features are available on the switch stack. Restrictions for Switch Stacks Encryption Features The system-level features supported on the stack master are supported on the entire switch stack. Each stack member has a current copy of these files for back-up purposes. The configuration files include the system-level settings for the switch stack and the interface-level settings for each stack member. The stack master contains the saved and running configuration files for the switch stack. Interface-level features for each stack member.System-level (global) features that apply to all stack members.The stack master controls the operation of the switch stack, and is the single point of stack-wide management. A mixed stack can have up to 4 stack members, with either a Catalyst 2960-X or Catalyst 2960-S switch as the stack master. Mixed stack-A stack with a mix of Catalyst 2960-X and Catalyst 2960-S switches.A homogenous stack can have up to 8 stack members. Homogeneous stack-A Catalyst 2960-X stack with only Catalyst 2960-X switches as stack members.The stack can have one of these configurations: You can connect only one switch type in a stack, or you can connect a mix of Catalyst 2960-X and Catalyst 2960-S switches in the stack. Supported Features in a Switch Stack Mixed Stack Membership Information About Switch StacksĪ switch stack is a set of up to eight stacking-capable switches connected through their stack ports. For more information about a specific feature, see the relevant Catalyst 2960-X configuration guide. In a mixed stack configuration, there is limited support for some features. In a mixed stack of Catalyst 2960-X and Catalyst 2960-S switches, stack convergence time is increased from milliseconds to 1 to 2 seconds.In a mixed stack of Catalyst 2960-X and Catalyst 2960-S switches, full stack bandwidth is reduced from 80 Gbps to 40 Gbps.In a mixed stack of Catalyst 2960-X and Catalyst 2960-S switches, the number of supported stack members is reduced from eight to four.All switches in the stack must be running the LAN Base image.
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