03-10-2011 05:03 PM - edited 03-06-2019 04:02 PM
Hey guys...
I have a basic knowledge of network and need some help.
I need to connect a single 3750G - 48 ports switch to a single 2960 - 48 ports switch and it needs to be through a fiber. So, PCs connected to one switch would reach the PCs from the other switch.
I see that the 3750G switch has (What I believe is) 4 SFP ports and the 2960 has 2 SFP ports.
Well, I have erased (write erase) the configuration of both switches, so they have the default cisco config.
I have plugged in the SFP transceivers at both switches and used a LC fiber to connect them.
I saw that the Vlan1 was down (sh ip inter brief). So, I did a no shut at interface VLAN 1 on both swtiches...
However, the lights are still off on both SFP ports.
Do I need to configure anything on the switches to make them see each other?
Because if I use a simple UTP 5e cable to connect them I don´t need to do anything. They just start seeing each other... Do I need to do something special when using these SFP connections?
I also don´t know the SFP part numbers I´m using on them...A guy who works with Cisco gave them to me and said it "should" work.
So, I don´t know if it´s a configuration problem, a SFP model problem or both??
Any help is appreciated!
Thanks
Solved! Go to Solution.