UDLD

Unanswered Question
Apr 28th, 2009
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Hi all


am i right in saying this is enabled on GE fiber ports by default and switched off on copper ports by default?


should I only enable this on my L3 links between my switces ? and leave it off everywhere else ?

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Jerry Ye Tue, 04/28/2009 - 08:15
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Hi Carl,


UDLD is disabled on all port by default.


I will enabled all the ports with aggressive mode (it will error disabled when it detect unidirectional link).


HTH,

jerry

Jerry Ye Wed, 04/29/2009 - 07:46
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  • Cisco Employee,

Hi,


In the global config mode, use udld aggressive to enable UDLD aggressive to all ports.


http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_see/command/reference/cli3.html#wp1590243


If you would like to enable it per port based, use udld port aggressive to enble it per port.


http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_see/command/reference/cli3.html#wp1921491


HTH,

jerry


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