I have a Cisco 3560 48-PoE. I am trying to use it for imaging computers. I can make it work but I only get 1gb a minute. I have tried various tweaking but that's about has high as I can get.
What is the max I should be able to get on a closed network. This is for one server and one client for the entire switch, same vlan, all stock out of the box.
I tried jumbo frames and used ifconfig to change the mtu on the machines. Didn't help.
Best Answer
When I see a problem such as you describe, it is almost always a duplex mismatch. Look at the statistics on your switch interfaces. If you see a lot of collisions (should not exist on a full-duplex switch interface) and/or FCS, then you have a duplex mismatch.
A duplex mismatch usually occurs when on side of a link is set to auto-negotiate, but the other side of the link is set to a fixed speed. When this is the case, the side set to auto-negotiate cannot negotiate. It will detect the fixed speed, and it will default to the duplex for the speed (half duplex for 10 or 100 Mbps).
Cisco has a document, Troubleshooting Cisco Catalyst Switches to NIC Compatibility Issues, that describes this, that includes a table that tells you what happens at various settings.