show spanning vlan 50. It shows an interface named "st5" which is blocked.

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Feb 5th, 2009
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The line is:

<br />St5 Back BLK 100 128.876 P2p

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<br />What is this st5 interface? I can guess that it's about stack5. However what does it mean exactly?

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<br />I am using a stack of 5 Cisco 3750 switches.

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<br />Thanks!

<br />Difan

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Overall Rating: 4 (1 ratings)
Yudong Wu Thu, 02/05/2009 - 12:27
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Yes, it's stack port but I am not sure how it is numbered.

To my knowledge, it should not be displayed in "show spanning" unless debug spanning is enabled.

If not and your switch running a old code, it might be a bug.

Giuseppe Larosa Thu, 02/05/2009 - 12:30
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Difan Zhao Mon, 02/09/2009 - 15:07
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The second link helps! The first link is too long... I will read it some day... Thanks!


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