Debugging STP BPDU source on Catalyst 2950

Discussion in 'Cisco' started by XaBi, Jun 7, 2006.

  1. XaBi

    XaBi Guest

    I'm receiving packets from another switch in the lan ; (more than 15
    switches) and one of them is using STP instead of RSTP (like all the
    other switches do). I saw this by using 'debug spanning general' on my
    catalyst:

    06:23:30: RSTP(327): Fa0/48 rcvd STP BPDU, changing to STP mode

    How can I check the source of this packet?


    thank you.
    XaBi, Jun 7, 2006
    #1
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  2. XaBi

    Guest

    show spanning-tree int f0/48 detail

    or

    show spanning-tree active detail

    also if the nasty running old stp is off f0/48 can you just

    show cdp neighbor f0/48 detail ?

    XaBi wrote:
    > I'm receiving packets from another switch in the lan ; (more than 15
    > switches) and one of them is using STP instead of RSTP (like all the
    > other switches do). I saw this by using 'debug spanning general' on my
    > catalyst:
    >
    > 06:23:30: RSTP(327): Fa0/48 rcvd STP BPDU, changing to STP mode
    >
    > How can I check the source of this packet?
    >
    >
    > thank you.
    , Jun 7, 2006
    #2
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  3. XaBi

    XaBi Guest

    thank you! let me check it and tell you how it goes :)


    wrote:
    > show spanning-tree int f0/48 detail
    >
    > or
    >
    > show spanning-tree active detail
    >
    > also if the nasty running old stp is off f0/48 can you just
    >
    > show cdp neighbor f0/48 detail ?
    >
    > XaBi wrote:
    > > I'm receiving packets from another switch in the lan ; (more than 15
    > > switches) and one of them is using STP instead of RSTP (like all the
    > > other switches do). I saw this by using 'debug spanning general' on my
    > > catalyst:
    > >
    > > 06:23:30: RSTP(327): Fa0/48 rcvd STP BPDU, changing to STP mode
    > >
    > > How can I check the source of this packet?
    > >
    > >
    > > thank you.
    XaBi, Jun 7, 2006
    #3
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