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The title should say it all..I'm trying to learn more about VLANs, tagging/trunking, etc.

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closed as off topic by Wesley, Chris S Jul 20 '12 at 23:14

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Why downvote? I'm trying to learn isn't that what this site is for? – slashp May 18 '12 at 20:52
Note for anyone finding this closed question: Not quite. Cisco switches are pretty chatty with CDP and STP enabled (default). Moreover STP will prevent the port from going up quickly (<30s) and that can cause issue w/ PXE (dhcp/tftp timeout). – petrus Sep 17 '12 at 20:46

Access ports only receive packets for a single VLAN and the switch can encapsulate received packets and put them in that VLAN. So access ports are not much like unmanaged ports.

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Access ports belonging to the same VLAN behave like they are on a self-contained switch. That's the very definition of "VLAN".

Consider this scenario:

  • A switch has 24 ports
  • Ports 1-12 are configured in access mode and assigned to VLAN 10
  • Ports 13-24 are configured in access mode and assigned to VLAN 20

From the point of view of connected devices, this behaves exactly as if there were 2 totally unrelated 12-ports switches.

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