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Forum Discussion
M4100-26G - VLAN - Isolate a few ports
I am using a M4100-26G for a home lab. I want to be able to partition off a few ports to act like a separate switch. I will include the configuration screen shoots below.
What I am running into, I can create the port groups using VLan, however, when I plug in certain cables the network switch stops responding and is hung until I un-plug the network cable. I can ping the internet from any of the ports including the port group. I am really looking for complete isolation if possible. Can anyone see where I am going wrong in the configuration. I have read the manual, lots of googling and lots of youtube. Everything I see says that the below should work.
Firmware is: 10.0.2.35
Thoughts?
Thanks,
Chris
2 Replies
ChrisLindsey wrote:
What I am running into, I can create the port groups using VLan, however, when I plug in certain cables the network switch stops responding and is hung until I un-plug the network cable.
A little bit vague. Are you trying to cross-connect different port groups with this cabling? One might guess this is intentional to avoid network loop conditions. The common mechanism in place is STP (Spanning Tree Protocol) https://en.wikipedia.org/wiki/Spanning_Tree_Protocol
Significantly faster in the loop discovery time is RSTP https://en.wikipedia.org/wiki/Spanning_Tree_Protocol. Said that, this is switch-wide.
A more advanced version is MSTP https://en.wikipedia.org/wiki/Multiple_Spanning_Tree_Protocol allowing to limit a spanning tree to a VLAN.
A good point to start in case of a problem is always the switch log where you can see the reason why the switch does stop responding.
Lot of learning ahead 8-)
Thank you for the quick response. I am actually aiming for the port groups to be completely isolated from each other. Reading some of the material, it sounds like this is probably not doable. I am reading what you sent, it will be a day or two before I have been able to read and digest what you sent. Thank you for sending me the info.
I am certain it's the loop back that's causing the issue, I'll review logs as well and get the actual answer.
Thank You
Chris
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