Hi, would someone be able to help me please :-)
I have a Dell N3024 in Location A.
I have a stacked Dell N3024 and N3024F in Location B.
I have VLAN'd the switches 2 create 2 VLANs:
VLAN ID = 2, Name: Thin Client Primary
VLAN ID = 3, Name: Cluster Primary
For the N3024F, I edited each port (Gi1 to Gi12) and assigned a PVID of 2. I also changed the port from "Access" to "General". I also ensure they were untagged by placing a "U" in the relevant box under each Port ID. I repeated this for ports Gi13 to Gi24 assigning them to VLAN ID 3 (PVID = 3).
For each of the N3024s, I edited each port (1 to 12) and assigned a PVID of 2. I also changed the port from "Access" to "General". I also ensure they were untagged by placing a "U" in the relevant box under each Port ID. I repeated this for ports 13 to 24 assigning them to VLAN ID 3 (PVID = 3).
Now - to I was asked to run separate fibre for each VLAN (rather than a trunk). This is to allow for future expansion - when more switches will be added and the VLANs can be removed)
So first I assigned Te1 and Te2. I assigned Te1 port to VLAN 2 and set it to Tagged. I also assigned Te2 port to VLAN 3 and set it to Tagged.
So I have a switch in location A connected to a stacked switch in location B using 2 fibres. Each switch has half its ports on 1 VLAN and half its ports on another. The Fibre ports are also segregated - meaning I can run independent fibres that are dedicated to a VLAN.
Te1 contains a 1GB SFP (Dell P/N: 0J6FGD)
Te2 contains a 10GB SFP+ (Dell P/N: 0RN84N)
The VLANs seem to work great - but I cannot seem to get both the SFP's to work.
When I plug one in - it works fine, but when I plug the other SFP in - the first one stops working.
An example in the Log file is “Te1/0/1 is transitioning from the Forwarding State to the Blocking State in instance 0”
Why can the two fibres not run together - I have tried disabling Spanning tree -but this has no effect.
Many thanks for taking the time to read my question - much appreciated.