R200 with BCM95721 network wont link up at 1000Mbps
We have a PowerEdge R200 server with the Broadcom BCM95721 network controller. It's stuck at 100Mbps link to a 1Gig switch. We have other, older, PE servers connected to the same switch and they link up at 1Gig just fine.
I looked at firmware updates but the section is a mess and confusing as to what firmware is compatible and what version I can jump to/from.
2.6.18-400.1.1.el5 #1 SMP Thu Dec 18 00:59:53 EST 2014 x86_64 x86_64 x86_64 GNU/Linux
Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: g Wake-on: d Current message level: 0x000000ff (255) Link detected: yes
According to that information the network controller is working fine. It is advertising itself as capable of 1000baseT/Full duplex. It is negotiating with the other network device to 100baseT/Full duplex. I suspect the issue is with either a cable or the other device. I would suggest that you troubleshoot those two items.