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LanceBaynes
Asked: 2012-05-02 23:58:57 +0800 CST

How to turn off CDP on a Cisco SD2005?

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So I have this Cisco switch (Cisco SD2005) and I need to turn off the (probably) CDP: 

14:58:53.235097 01:80:c2:00:00:01 (oui Unknown) > Broadcast, ethertype Unknown (0x8874), length 60:
    0x0000:  e008 8f4f d8c2 fa05 da4e 5010 0000 0000  ...O.....NP.....
    0x0010:  0000 0000 0000 0000 0000 0000 0000 0000  ................
    0x0020:  0000 0000 0000 0000 0000 0000 0000       ..............

How can I do this?

I'm not familiar with Cicso switches so I need a little description for it.

AFAIK this is how can I turn CDP off (got this from my friend): 

switch# enable
switch# configure terminal
switch# no cdp run
switch# show cdp neighbors

 % CDP is not enabled           

!--- This message indicates that CDP is disabled on this device.

swithch# end

But this switch is an "unmanaged" switch (?)

p.s.: is the tcpdumped data CDP at all??

cisco

2 Answers

  1. Best Answer

    That's not CDP. It is some kind of broadcom loop detection traffic. See: http://www.freepatentsonline.com/y2006/0285499.html.

    My guess is that it from a client connected to the switch, not from the switch itself.

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  2. Firstly, why do you think you need to disable CDP?

    Secondly, I don't think that switch even has CDP.

    Finally, if it's unmanaged then you're out of luck anyway. The whole thing with unmanaged switches is that there is no configuration to edit. It's a plug and play device, and you get what you get.

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