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New Member

span for a vlan

Hi all, when we talk about mirroring a whole vlan, are we only seeing the broadcasts for the vlan, or the whole traffic between each and everyport in that vlan ?

2 REPLIES

Re: span for a vlan

you could do mirroring either by Port-based (PSPAN) or VLAN-based (VSPAN). Here's a good read and explanation from Cisco.com:

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

New Member

Re: span for a vlan

what would the vspan be used for? would I see traffic flows for every port on that vlan, or just the broadcasts ?

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