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VSF only forms with one link

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  • 1.  VSF only forms with one link

    Posted Mar 07, 2018 10:46 AM
      |   view attached

    Hi guys,

     

    I want to enable VSF between two 2930 switches using two links. I have used the following commands:

     

    (config)# vsf member 1 link 1 50,52
    (config)# vsf enable domain 1

     

    After this, the VSF has come up, but only with one link, the other one shows the following error:

     

    Piso1-2930F-48G-PoEP-4SFPP# show vsf link

    VSF Member 1

    Link Peer Peer
    Link Link-Name State Member Link
    ---- ---------- -------- ------ ----
    1 I-Link1_1 Up 2 1
    2 I-Link1_2 Down 0 0


    VSF Member 2

    Link Peer Peer
    Link Link-Name State Member Link
    ---- ---------- -------- ------ ----
    1 I-Link2_1 Up 1 1
    2 I-Link2_2 Down 0 0

    Piso1-2930F-48G-PoEP-4SFPP#
    Piso1-2930F-48G-PoEP-4SFPP# show vsf link detail
    VSF Member: 1 Link: 1

    Port State
    -------- ------------
    1/50 Up: Connected to port 2/50


    VSF Member: 1 Link: 2

    Port State
    -------- ------------
    1/52 Error: Port connected to self

     

    VSF Member: 2 Link: 1

    Port State
    -------- ------------
    2/50 Up: Connected to port 1/50
    2/52 Error: Peer port on Switch type JL256A is not VSF capable

     

    I have seen the new config the switch has made and is this (related to VSF):

     

    vsf
    enable domain 1
    member 1
    type "JL256A" mac-address ecebb8-30e7c0
    priority 128
    link 1 1/50
    link 1 name "I-Link1_1"
    link 2 1/52
    link 2 name "I-Link1_2"
    exit
    member 2
    type "JL256A" mac-address ecebb8-3018c0
    priority 128
    link 1 2/50,2/52
    link 1 name "I-Link2_1"
    link 2 name "I-Link2_2"
    exit

     

    The switch has put interface 52 on the second switch also within link 1 and not link 2.

     

    What is the reason for this error? Is possible to form a VSF between two switches only with one DAC cable? Please your help!

     

    Regards,
    Julián

    Attachment(s)

    txt
    vsf_problem.txt   1 KB 1 version


  • 2.  RE: VSF only forms with one link

    Posted Mar 07, 2018 05:35 PM
    as far as i know.it can be either chain or ring topology.are running on same firmware?


  • 3.  RE: VSF only forms with one link

    Posted Mar 07, 2018 05:55 PM

    Hi harveyysip,

     

    Yes, they are running the same version. I think I know where is the problem, I am placing port 50 into link 1 and port 52 into link 2, but there is only one VSF link between the two switches, let's say link 1. I have to place both ports within link 1. I will try tomorrow again and we'll see...

    By the way, between two switches chain is the only possible topology.

     

    Regards,

    Julián



  • 4.  RE: VSF only forms with one link
    Best Answer

    Posted Mar 08, 2018 08:55 AM

    Hi guys,

     

    The problem I had is I placed each port in different VSF links, but between two switches there is only one VSF link. One I placed both ports in the same VSF link the VSF formed as expected. The correct command is (I am using ports 50 and 52):

     

    (config)# vsf member 1 link 1 50,52

    (config)# vsf enable domain 1

     

    Regards,

    Julián