Test SFP on Catalyst 3560

Discussion in 'Cisco' started by MattG, Jun 20, 2007.

  1. MattG

    MattG Guest

    Today I ran into a situation where a gigabit ethernet link went down
    in a remote site. on one end of the connection was a Catalyst 3560 w/
    a GLC-SX-MM= SFP module connecting on the other end to a Catalst 2950
    w/ a GBIC of some type.

    The gig interface on both ends was showing down/down. I eventually had
    to replace the GLC-SX-MM= SFP with a new one and the connection came
    up immediatley. My question is, is there a way to test/diagnose the
    SFP modules from the CLI to determine if it is functioning properly or
    not, rather than having to make a 200 mile round trip drive to analyze
    this onsite?
    MattG, Jun 20, 2007
    #1
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  2. MattG

    Trendkill Guest

    On Jun 20, 5:08 pm, MattG <> wrote:
    > Today I ran into a situation where a gigabit ethernet link went down
    > in a remote site. on one end of the connection was a Catalyst 3560 w/
    > a GLC-SX-MM= SFP module connecting on the other end to a Catalst 2950
    > w/ a GBIC of some type.
    >
    > The gig interface on both ends was showing down/down. I eventually had
    > to replace the GLC-SX-MM= SFP with a new one and the connection came
    > up immediatley. My question is, is there a way to test/diagnose the
    > SFP modules from the CLI to determine if it is functioning properly or
    > not, rather than having to make a 200 mile round trip drive to analyze
    > this onsite?


    In short, no. If you have someone there, and hopefully you have some
    spare ports in the switch, you can move to different ports, or leave a
    spare GBIC in a second slot for trial/error, but there is no official
    way to test GBICs or SFPs in IOS/Catalyst software.
    Trendkill, Jun 21, 2007
    #2
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