monkeyfoo
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R200 with BCM95721 network wont link up at 1000Mbps

Hi,

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.

Some info...

CentOS 5.x

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

ethtool -i eth0
driver: tg3
version: 3.123
firmware-version: 5721-v3.65, ASFIPMI v6.25
bus-info: 0000:04:00.0

Thanks 🙂

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1 Reply
Moderator
Moderator

RE: R200 with BCM95721 network wont link up at 1000Mbps

Hello

Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s

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.

Thanks

Daniel Mysinger
Dell EMC, Enterprise Engineer

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