As such. You need to use whatever eth device you have, of course.
jmcphee@locus ~ :) $ sudo ethtool eth2
Settings for eth2:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Link partner advertised pause frame use: Symmetric
Link partner advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
drv probe ifdown ifup
Link detected: yes
On Sun, Jul 1, 2012 at 1:22 PM, Mark Phillips <
mark@phillipsmarketing.biz>wrote:
> How do I use ethtool to answer your question?
>
> Mark
>
>
> On Sun, Jul 1, 2012 at 12:52 PM, James Mcphee <jmcphe@gmail.com> wrote:
>
>> What does ethtool tell you about what the interface thinks it is?
>>
>> On Sun, Jul 1, 2012 at 12:44 PM, Mark Phillips <
>> mark@phillipsmarketing.biz> wrote:
>>
>>> I have a 100baseT network with several Debian servers, a mac book, and
>>> some virtual windows. I just picked up a Western Digital My Book Live (MBL)
>>> 2TB NAS at Costco, and powered it up on my network. The unit is just
>>> sitting with its green light on, and the web interface is really slow. When
>>> I ping the device, it shows somewhere from 50% to 86% packet loss. If I
>>> ping any other computer on the network I have 0% packet loss. I have tried
>>> moving the device to different physical plugs, and I get the same results.
>>>
>>> ping results for the MBL from server A:
>>> --- 192.168.25.213 ping statistics ---
>>> 330 packets transmitted, 152 received, 53% packet loss, time 329555ms
>>> rtt min/avg/max/mdev = 0.208/0.273/0.650/0.048 ms
>>>
>>> --- 192.168.25.213 ping statistics from server B ---
>>> 254 packets transmitted, 120 received, 52% packet loss, time 252998ms
>>> rtt min/avg/max/mdev = 0.196/0.264/2.499/0.206 ms
>>>
>>>
>>> ping results for server A to B:
>>> --- 192.168.25.130 ping statistics ---
>>> 340 packets transmitted, 340 received, 0% packet loss, time 338996ms
>>> rtt min/avg/max/mdev = 0.080/0.177/0.246/0.030 ms
>>>
>>> The device says gigabit Ethernet next to the Ethernet port. Is there any
>>> reason I can't connect a gigabit Ethernet device to a 100baseT network
>>> other than the obvious speed difference? Should I see all this packet loss?
>>> This is actually the second unit I have tried - the first one acted the
>>> same way, so I took it back. I am now wondering if I am doing something
>>> wrong.
>>>
>>>
>>> Thanks!
>>>
>>> Mark
>>>
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>>
>>
>>
>> --
>> James McPhee
>> jmcphe@gmail.com
>>
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>>
>
>
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--
James McPhee
jmcphe@gmail.com
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