ExtremeSwitching (Other)

  • 1.  EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-19-2016 17:13
    Hi,

    i want to stack the above 2 Switches with 40GB VIM Modules. Regarding Datasheets it should work fine. But one thing i do not keep in mind.
    The switch came out of the box with different licenses! So it is not possible to stack this 2 switches together.

    See here:
    02/19/2016 17:50:18.57


  • 2.  RE: EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-19-2016 17:18
    Hi Matthias,

    You can change the license level in the stacking configuration so it will come up properly. Here is an article that explains how to do it.

    https://gtacknowledge.extremenetworks.com/articles/Solution/Failed-Slot-License-Mismatch

    The additional notes has the command you can use to make this change.

    Hope this helps!


  • 3.  RE: EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-19-2016 17:20
    Cool!


  • 4.  RE: EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-19-2016 17:34
    Thanks the main Problem is solved - the 2 switch are in the stack now!

    But the wrong switch is master. I define the X670 as master (via a higher prio and the switch himself have a higher imprtance to be master).

    So why is now the X460 the master ?

    Here the output of the stacking:
    Slot-1 Stack.1 > sh stacking
    Stack Topology is a Daisy-Chain
    Active Topology is a Daisy-Chain
    Node MAC Address Slot Stack State Role Flags
    ------------------ ---- ----------- ------- ---
    *00:04:96:99:3b:3a 1 Active Backup CA-
    00:04:96:9a:14:a3 2 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.2 >
    Slot-1 Stack.2 >
    Slot-1 Stack.2 >
    Slot-1 Stack.2 >
    Slot-1 Stack.2 >
    Slot-1 Stack.2 >
    Slot-1 Stack.2 > sh stacking configuration
    Stack MAC in use: [u]
    Node Slot Alternate Alternate
    MAC Address Cfg Cur Prio Mgmt IP / Mask Gateway Flags Lic
    ------------------ --- --- ---- ------------------ --------------- --------- ---
    *00:04:96:99:3b:3a 1 1 70


  • 5.  RE: EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-19-2016 17:41
    Hi Matthias,

    When you made the license level change it required you to reboot slot 1. Slot 2 is master-capable and became the new master. Once slot boots up again it will not "steal" the master role from slot 2. It will simply become whatever role is needed. If backup is available it will become backup. If master and backup are already taken then it will become a standby node. The switch that is master typically does not matter but if you want slot 1 to take over the master role you can issue the command "run failover" on the new master or just reboot slot 2.


  • 6.  RE: EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-19-2016 18:11
    Couple questions on this.

    Isn't stacking a 670 and 460 a bad idea? Doesn't the 670 get limited by the 460?

    Matthias,
    Was it your intention to run the stack in a daisy chain, or did you possibly cross the cables?


  • 7.  RE: EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-19-2016 18:29
    Hi David,

    In this case the x670 will be the limiter considering the x460 is a G2. The intended use of the stack is a good question but you are correct in saying that you are limited by the resources available on the switches.


  • 8.  RE: EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-19-2016 18:36
    we built this combination very often and had no problems with reaching any limits. as long as you stay in the same class of products it works flawless.


  • 9.  RE: EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-19-2016 20:22
    X460G2 is preferred over X670V, because it has a better control plane (better CPU). Master role is CPU intensive, so it's logical to set the best CPU as Master. In terms of dataplane, no matter which one is the Master.

    Mixing x460G2 with x670V is not a bad idea, especially considering SummitStack-V160. That's a lot of bandwidth available for stacking links.

    As for the various HW limits, please note that EXOS is smart enough to optimize resource usage. It's NOT as simple as "down to the lowest capable".


  • 10.  RE: EXOS Stacking X670V-48t (VIM4-40G4X) with X460-G2 (VIM2q)

    Posted 02-22-2016 12:08
    Thanks to all of you for giving me high valueable advices!

    The stack is working now - how it should be ...