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  • 1.  VSF Stacking Error on CX 6300

    Posted Apr 29, 2021 06:09 AM
    Hi all!
    I have a stack with two CX6300s, one master and one standby, but one of my VSF links will NOT come up at one end so it's in a 'chain'. It's up at the interface level on both 'slots' but I'm seeing an error in the log when I bounce the suspect interface. What's going on here??
    Brand new,, out of the box switches and 50G Aruba DACs, AOS 10.04.0010

    6300# sh vsf

    MAC Address : b8:d4:e7:0b:13:80
    Secondary : 2
    Topology : Chain
    Status : No Split
    Split Detection Method : None


    Mbr Mac Address type Status
    ID
    --- ------------------- -------------- ---------------
    1 b8:d4:e7:0b:13:80 JL658A Master
    2 b8:d4:e7:bd:64:80 JL658A Standby
    6300#
    6300# sh vsf link

    VSF Member 1

    Link Peer Peer
    Link State Member Link Interfaces
    ---- ---------- ------- ------ ---------------------------
    1 up 2 1 1/1/27
    2 up 0 0 1/1/28


    VSF Member 2

    Link Peer Peer
    Link State Member Link Interfaces
    ---- ---------- ------- ------ ---------------------------
    1 up 1 1 2/1/27
    2 down 0 0 2/1/28

    6300#

    6300# sh int br
    -------------------------------------------------------------------------------------
    Port Native Mode Type Enabled Status Reason Speed
    VLAN (Mb/s)
    -------------------------------------------------------------------------------------
    1/1/27 -- routed SFP56DAC0.65 yes up 50000
    1/1/28 -- routed SFP56DAC0.65 yes up 50000

    2/1/27 -- routed SFP56DAC0.65 yes up 50000
    2/1/28 -- routed SFP56DAC0.65 yes up 50000

    6300#
    6300# show logg
    .......
    2021-04-29T10:49:32.827609+00:00 6300 vsfd[4329]: Event|9923|LOG_INFO|STBY|2|VSF link 2 is up
    2021-04-29T10:49:33.231893+00:00 6300 vsfd[767]: Event|9923|LOG_INFO|MSTR|1|VSF link 2 is up
    2021-04-29T10:49:33.577404+00:00 6300 vsfd[4329]: Event|9906|LOG_WARN|STBY|2|Member 1 conflict detected on link 2
    2021-04-29T10:49:34.366394+00:00 6300 vsfd[767]: Event|9906|LOG_WARN|MSTR|1|Member 2 conflict detected on link 2
    2021-04-29T10:49:35.577339+00:00 6300 vsfd[4329]: Event|9906|LOG_WARN|STBY|2|Member 1 conflict detected on link 2


  • 2.  RE: VSF Stacking Error on CX 6300

    Posted Apr 29, 2021 07:04 AM
    Can you share your VSF configuration, including the interfaces configured for the VSF links.

    Thanks!

    ------------------------------
    Dustin Burns
    ------------------------------



  • 3.  RE: VSF Stacking Error on CX 6300

    Posted Apr 29, 2021 08:20 AM
    Hi Dustin, sure....

    interface 1/1/27
        no shutdown
    interface 1/1/28
        no shutdown
    ....
    interface 2/1/27
        no shutdown
    interface 2/1/28
        no shutdown
    ......
    vsf secondary-member 2
    vsf member 1
        type jl658a
        link 1 1/1/27
        link 2 1/1/28
    vsf member 2
        type jl658a
        link 1 2/1/27
        link 2 2/1/28
    6300#
    ​


    ------------------------------
    Stephen Elliott
    ------------------------------



  • 4.  RE: VSF Stacking Error on CX 6300

    Posted Apr 29, 2021 08:36 AM
    If its just the two members you should be able to just edit the config to look like this:

    vsf member 1
        type jl658a
        link 1 1/1/27-1/1/28
    vsf member 2
        type jl658a
        link 1 2/1/27-2/1/28


    ------------------------------
    Dustin Burns
    ------------------------------



  • 5.  RE: VSF Stacking Error on CX 6300

    Posted Apr 29, 2021 09:02 AM
    I've tried that and it's now a chain with no vsf links down. Thanks!
    However, I would have thought my config was valid and should allow the introduction of more devices to the stack at a later date. Is there a problem with using 2 VSF links on dual switch stacks?

    6300# sh vsf
    
    MAC Address              : b8:d4:e7:0b:13:80
    Secondary                : 2
    Topology                 : Chain
    Status                   : No Split
    Split Detection Method   : None
    
    
    Mbr Mac Address         type           Status
    ID
    --- ------------------- -------------- ---------------
    1   b8:d4:e7:0b:13:80   JL658A         Master
    2   b8:d4:e7:bd:64:80   JL658A         Standby
    6300#
    6300# sh vsf link
    
     VSF Member 1
    
         Link       Peer    Peer
    Link State      Member  Link   Interfaces
    ---- ---------- ------- ------ ---------------------------
    1    up         2       1      1/1/27-1/1/28
    
    
     VSF Member 2
    
         Link       Peer    Peer
    Link State      Member  Link   Interfaces
    ---- ---------- ------- ------ ---------------------------
    1    up         1       1      2/1/27-2/1/28
    
    6300#
    ​


    ------------------------------
    Stephen Elliott
    ------------------------------



  • 6.  RE: VSF Stacking Error on CX 6300
    Best Answer

    Posted Apr 29, 2021 09:10 AM
    A ring is supported in later software when you are in a two stack to make it  simpler to introduce more members to the stack.....this  requires 10.07  AOS-CX

    ------------------------------
    Kamal Takodra
    If my post was useful accept solution and/or give kudos
    ------------------------------



  • 7.  RE: VSF Stacking Error on CX 6300

    Posted Apr 29, 2021 09:13 AM
    Edited by DB86 Apr 29, 2021 09:14 AM
    2-Member rings are not supported. A 2-Member stack must be configured as a chain with one virtual link. Once you get to 3 or more switches, you can change to a ring topology to allow fault tolerance if a switch in the middle dies. 

    Or upgrade to 10.07 as ktakodra says.


    ------------------------------
    Dustin Burns
    ------------------------------



  • 8.  RE: VSF Stacking Error on CX 6300

    Posted Apr 29, 2021 09:17 AM
    Wonderful! thank you both.
    Now I have a stack I'll upgrade and give that a go.


  • 9.  RE: VSF Stacking Error on CX 6300

    Posted Apr 30, 2021 04:13 AM
    Just in case anyone else comes across this, I upgraded the stack to 10.07 as recommended above and was then able to split the VSF links into Link 1 & Link 2 which is the configuration I was looking for.


  • 10.  RE: VSF Stacking Error on CX 6300

    Posted Apr 30, 2021 02:51 AM
    Edited by cert seeker Apr 30, 2021 02:59 AM
    SORRY !! disreguard