Span port limit

Answered Question
Aug 10th, 2009
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How many source ports can be ideally spanned to one destination port? we are planning to use an application in our serverfarm switch but looks like I will have to span more than 20 source ports to one destination, is it doable or recommended way? Is there any Cisco doc that tells us the statistics or utilization for the span ports?

Correct Answer by Edison Ortiz about 7 years 9 months ago

All depends upon the amount of traffic being sent from those 20 source ports. Any exceeded traffic will be dropped without affecting switch performance. This documentation has comprehensive information regarding SPAN on several Catalyst switches


http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a008015c612.shtml


HTH,


__


Edison.

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Correct Answer
Edison Ortiz Mon, 08/10/2009 - 07:25
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All depends upon the amount of traffic being sent from those 20 source ports. Any exceeded traffic will be dropped without affecting switch performance. This documentation has comprehensive information regarding SPAN on several Catalyst switches


http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a008015c612.shtml


HTH,


__


Edison.

nawas Mon, 08/10/2009 - 07:29
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I have another question, I'm runing hybrid mode on SUP720 and I don't think I can span a vlan in CAT OS, correct?

Edison Ortiz Mon, 08/10/2009 - 07:37
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Did you actually read the link I posted?


nawas Mon, 08/10/2009 - 07:46
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I think I posted second question too early, I got the link, thank you for your help

Edison Ortiz Mon, 08/10/2009 - 09:41
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Glad to help


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