Hello.  My lab setup is like this.Computer(vlan12) -> Switch 1 (vlan 5 and 12) -> Switch 2 (vlan 5) -> Switch 3 (vlan 5)This the physical setup of the devices in use.I cannot get to VLAN 5 on switch 2 and 3 from my computer.  I can access vlan 5 on s...

Hello.  I am trying to get a Cisco 3750g and a Hirschman rs30 to communicate through fiber.  For some reason I cannot even get link lights.  This means physical connection issue to me.  I am using known working sfp modules and a known working fiber j...

Ok so I am not nearly as Cisco knowledgable as I want to be and probably less so about fiber but I have to start somewhere. I have 2 Cisco 3750x with 2 sfp+ modules (SFP-10g-lr) that don't see each other.  The layout is like this:  switch A -> fiber ...