ExtremeSwitching (EXOS)

Expand all | Collapse all

Enable SummitStack-V on single switch?

  • 1.  Enable SummitStack-V on single switch?

    Posted 05-31-2018 11:24
    In the past, our best practice was to enable stacking on everything (including single switches), allowing for future additions to the switch without having to suffer an outage and reconfiguration. It seems that when using 10Gb stacking on a 460-G2, unless you boot with a connected "secondary" switch, the enable stacking command has no impact and the switch refuses to enter stacking mode by itself. Can anyone confirm this behavior? Any suggestions to accommodate the expansion without reboot scenario?

    Thanks,
    Eric


  • 2.  RE: Enable SummitStack-V on single switch?

    Posted 05-31-2018 11:29
    This could be code related.

    We have several X460-G2s deployed as single switch stacks using the alternate front ports.


  • 3.  RE: Enable SummitStack-V on single switch?

    Posted 05-31-2018 11:37
    What EXOS version are you running?

    I did a quick test in my lab and don't see this, i.e. I am able to enable stacking on a single node:

    * Slot-1 Stack.1 # sh slot
    Slots Type Configured State Ports
    --------------------------------------------------------------------
    Slot-1 X460G2-48x-10G4 Operational 54
    Slot-2 Empty 0
    Slot-3 Empty 0
    Slot-4 Empty 0
    Slot-5 Empty 0
    Slot-6 Empty 0
    Slot-7 Empty 0
    Slot-8 Empty 0

    * Slot-1 Stack.2 # sh stacking-support

    Stack Available Ports
    Port Native Alternate Configured Current
    ----- ----------------- ---------- ----------
    1 Yes 51 * Alternate Alternate
    2 Yes 52 * Alternate Alternate
    stacking-support: Enabled Enabled

    Flags: * - Current stack port selection

    * Slot-1 Stack.3 # sh stacking
    Stack Topology is a Daisy-Chain
    Active Topology is a Daisy-Chain
    Node MAC Address Slot Stack State Role Flags
    ------------------ ---- ----------- ------- ---
    *00:04:96:9b:c2:0f 1 Active Master CA-
    * - Indicates this node
    Flags: (C) Candidate for this active topology, (A) Active Node
    (O) node may be in Other active topology
    * Slot-1 Stack.4 #


  • 4.  RE: Enable SummitStack-V on single switch?

    Posted 05-31-2018 11:42
    Running the recommended 21.1.5.2 build. If I show stacking-support, it says enabled but the port references from a configuration standpoint don't seem to use the switch:port commands (just port). Again, nothing is connected to the back stacking ports (27/28). In SummitStack if you enabled stacking on a single switch, the port commands would reference switch:port just like a multi-switch stack.


  • 5.  RE: Enable SummitStack-V on single switch?

    Posted 05-31-2018 11:46
    Even if stacking is enabled you still need to configure staging to trigger the reboot and create the stack. It sounds like you are short a command or two.


  • 6.  RE: Enable SummitStack-V on single switch?

    Posted 05-31-2018 11:56
    Have you run the "enable stacking" after "you configure stacking .... " ?

    Also just for everyone information, SummitStack-V do support SFP+ BiDi as show below.

    This can saves up on your precious FO core asset.





  • 7.  RE: Enable SummitStack-V on single switch?

    Posted 05-31-2018 11:59
    Boy do I feel dumb... 🙂 So used to stacking on SummitStack that I missed a step on the 10GB stacking (easy-setup). While I configured and enabled stacking - it seems that without this command at the end I was not really done. Thanks for the quick responses!