Take the 2-minute tour ×
Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

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

share|improve this question

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

Questions on Server Fault are expected to relate to server, networking, or related infrastructure administration within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

    
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

2 Answers 2

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.

share|improve this answer

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.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.