Catalyst 2950 CISCO Loop packets

Discussion in 'Cisco' started by Nawak, Jan 29, 2004.

  1. Nawak

    Nawak Guest

    I have some raw ethernet devices that needs to be interconnected to
    eachothers.
    I use a catalyst 2950 switch to interconnect them. Since I use the multicast
    "routing" feature of the switch (device A sends multicast ethernet packets
    to B and D but not C while C sends multicast packets to B and A etc.), I
    cannot replace it with a simple hub.
    My problem is that the switch spontaneously sends packets to devices
    connected to it.
    I already managed to shut down CDP, VTP and Spanning Tree packets but 'CISCO
    Loop packets' are still sent...

    Does anyone knows how to prevent the switch from sending those loop packets?

    Thanks!

    PS: The IOS version is 12.1(6)EA2a...
     
    Nawak, Jan 29, 2004
    #1
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  2. Nawak

    Steinar Haug Guest

    ["Nawak"]

    | I already managed to shut down CDP, VTP and Spanning Tree packets but 'CISCO
    | Loop packets' are still sent...
    |
    | Does anyone knows how to prevent the switch from sending those loop packets?

    "no keepalive"

    Steinar Haug, Nethelp consulting,
     
    Steinar Haug, Jan 29, 2004
    #2
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  3. Nawak

    Hansang Bae Guest

    In article <40190402$0$19274$>,
    says...
    > I have some raw ethernet devices that needs to be interconnected to
    > eachothers.
    > I use a catalyst 2950 switch to interconnect them. Since I use the multicast
    > "routing" feature of the switch (device A sends multicast ethernet packets
    > to B and D but not C while C sends multicast packets to B and A etc.), I
    > cannot replace it with a simple hub.
    > My problem is that the switch spontaneously sends packets to devices
    > connected to it.
    > I already managed to shut down CDP, VTP and Spanning Tree packets but 'CISCO
    > Loop packets' are still sent...
    >
    > Does anyone knows how to prevent the switch from sending those loop packets?


    You're looking for "no keepalive" But if use it, the port basically
    stays up no matter what. You will not detect failed devices.

    --

    hsb

    "Somehow I imagined this experience would be more rewarding" Calvin
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    Hansang Bae, Jan 29, 2004
    #3
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