I have a new 2960 switch that I am trying to connect up with some other switches that are already in place.
The switches that are already in place are located in my server room, and the new 2960 I am trying to hook up is in my office. I patch the jack in my office that I am plugging the 2960 in to to a switch in the server room with a straight through cable. Then on the 2960 I plug it in to the jack in my office with a straight through cable then plug my PC into the switch but I get no connection.
Then after trying to go through the switch and it not working it seems as though it disables the port on the switch I am using in the server room. If I unplug the switch in my office then plug my PC directly to the jack it says I have no network connection.
Do I need to run a cross-over cable from the patch panel to the switch in the server room? Then a straight through from the 2960 in my office to the jack? And would doing this wrong for some reason disable ports on the switch?
I am not sure if 2960 has the STP function, or port-security function,But you are better to check it out, if the switch port in your server room being configured with the port-security command, or the spanning portfast command
sw1#sh run int f0/11
Current configuration : 165 bytes
switchport mode access
switchport port-security maximum 2
switchport port-security mac-address sticky
Or the globale configuration mode
# spanning-tree portfast bpduguard default
these command will limit or prevent your new device or non-single host device plug in.
Also,think about the cross-over cable might be a good choice to connect two switch, if the ports could not self-adjust the cable connection,
Also, think about the interface parameters such as mtu, bandwidth, and delay, duplex, and speed.
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