retry since my previous post got hyjacked and i did not get an answer.
MY ZimaBlade only can work on 100 Mbps, whatever I try, it will only work on this speed. It has it since day one, but now I need some more speed from it and I would like to solve it.
All possible settings on the switch I already tried. It is not the cables. If i hook other equipment to the port it works ok, so on the switch side i do not know whet else i can do.
The to the zimablade, check learns:
Speed: 100Mb/s
Duplex: Full
Auto-negotiation: on
Link detected: yes
How can I check if there might be a hardware failure at the ZimaBlade,I checked everything else.
then the ZimaBlade is only negotiating a 100 Mbps physical link.
Before calling it a hardware fault, I would try to isolate it as much as possible:
ethtool eth0
Replace eth0 with your actual network interface name.
The useful parts to check are:
Supported link modes:Advertised link modes:Link partner advertised link modes:
If the ZimaBlade advertises 1000baseT/Full, but the link still only comes up at 100baseT/Full, then it is normally something in the physical link path such as the cable, switch port, wall socket, patch lead, or the Ethernet port itself.
I would also test it with a short known-good Cat5e/Cat6 cable directly into another gigabit switch or router port, with no wall socket or patch panel in between.
You can also check what Ethernet controller the system sees with:
lspci | grep -i ethernet
I would not force 1 Gbps. If forcing 1 Gbps kills the link, that usually means the physical connection cannot establish gigabit cleanly.
If it still only negotiates 100 Mbps after testing with multiple known-good cables and different gigabit ports, then it starts to point more toward a possible ZimaBlade Ethernet port or hardware issue.