Does you play around with stacking Cisco catalyst 2960s and 2960x switches into the same stack? I realize that cisco says that using the usage of the same flexstack protocol can stack different models together. Does it Ok?
Some information I recieved earlier this year regarding 2960-S and 2960-X stacking:
Have not used this myself
• Hot swappable FlexStack-Plus modules
• Stack up to 8 switches – 400 ports
• Faster Stack Convergence - 100ms
• 40 Gbps of stack bandwidth per stack port.
Total 80 Gbps stack bandwidth with two
• Backward Compatible with FlexStack
• Support Mix Stack - Stack of 2960-S &
• Share uplinks for redundancy if one switch
• Apply features across stack members
including QoS, Etherchannel
• FlexStack modules and FlexStack-Plus
modules are not interchangeable.
Mixed Stack – 2960-X Stack with 2960-S switches.
• 2960-X LAN Base models only can form Mixed Stack.
• 2960-XR IP Lite models can’t form Mixed Stack.
• Mixed Stack can be formed with 2960-S as master or member.
• The stack port speed needs to be changed on 2960-X to stack with 2960-S
Switch(config)#switch stack port-speed 10
• 2960-S based SDM template (default / lanbase-routing) needs to be selected
in 2960-X series to form Mixed Stack.
• The capabilities & features of Mixed Stack are limited to 2960-S capabilities.
• The Stack bandwidth is limited to 40Gbps (20Gbps per stack port)
• The maximum number of stack members is restricted to 4 in Mixed Stack.
SDM Templates, 2960-X LAN Base:
• lanbase-default – default LAN Base template on 2960-X
series. Supports IPv4 & IPv6 Static Routing.
• default – 2960-S default template, used for Mix-Stack.
• lanbase-routing – 2960-S routing template, used for Mix-
2960-X LAN Lite: Stacking not supported