Nic settings (how to determine)
I have a dell poweredge 2950 I am told it is on a gigabit network so I want to check my Nic settings. Here is the output from mii-too and ethtool. one command shows 100base T the other shows SPEED=1000MB/s...not sure what they tell me..help..
# mii-tool -v eth0: negotiated 100baseTx-FD, link ok product info: vendor 00:08:18, model 54 rev 5 basic mode: autonegotiation enabled basic status: autonegotiation complete, link ok capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD advertising: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD [root@seebs5 dev]# ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: d Wake-on: d Link detected: yes |
what settings do you want to check?
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Could just check check one of the logs..
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mail:~# ethtool eth0 So basically I would go with the output from ethtool.. |
Am I running 100baset or 1000Mps?
Am I running half or FULL duplex? From what I see (SPEED=1000Mps but it looks also like 100Bt...so, conflicting info for a newbie). thanks in advance |
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Ok..so, I can assume that: #ethtool is the main command to use to gather this information...I am still not sure what mii-tool buys me.
Also, the grep information (messages, etc;) is helpful. tks again and if someone can explain the usage of mii-tool and why it says 100 vs. 1000Mbps that would be good. |
Just compare the man pages for the two..
looks like mii-tool was here first, but has not expanded it's capabilities and is limited in what it can do. it can only support detection and modification of speeds to 100MB. ethtool looks newer, has many, many, more options such as the ability to change wake-on-lan parameters, and it supports up to Gig interfaces.. http://www.netadmintools.com/html/mii-tool.man.html http://www.linuxcommand.org/man_pages/ethtool8.html looks like ethtool for me from here on out. |
I agree..ethtool rules!
tks for all the responses. |
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