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Disadvantages of running loopguard globally?

johnnylingo
Level 5
Level 5

‎04-23-2008 03:29 PM - edited ‎03-05-2019 10:34 PM

Is there any disadvantage of running loopguard globally with this command?

spanning-tree loopguard default

I've heard it should only be used on root and alternate ports.

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padramas
Cisco Employee
Cisco Employee

‎04-23-2008 04:25 PM

Hello John,

Placement of global command is also related to the role of the bridge. The following link discusses the interaction of loop guard with other STP enhancements

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a0080094640.shtml

HTH

Padmanabhan

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