ethtool - Link detected: no

[nani]

Check with the Network team, from switch side what will be the settings
like 100 base full duplex
and through ethtool command set those values

and see you will get the link detected = yes



On Mon, Feb 28, 2011 at 3:01 PM, Parvez Shaikh <parvez.h.shaikh at gmail.com>wrote:

> Hi all,
>
> When I run ethtool against ethernet card, I get following output -
>
> [root at datablade1 ~]# ethtool eth3
> Settings for eth3:
>        Supported ports: [ FIBRE ]
>        Supported link modes:   1000baseT/Full
>        Supports auto-negotiation: Yes
>        Advertised link modes:  1000baseT/Full
>        Advertised auto-negotiation: Yes
>        Speed: Unknown!
>        Duplex: Unknown! (255)
>        Port: FIBRE
>        PHYAD: 2
>        Transceiver: internal
>        Auto-negotiation: on
>        Supports Wake-on: g
>        Wake-on: g
> *        Link detected: no*
>
> Note "Link detected: no"; what does it mean?
>
> When I do ethtool -t eth3, I get following output -
>
> [root at datablade1 ~]# ethtool -t eth3
> *The test result is FAIL*
> The test extra info:
> register_test (offline)  0
> memory_test (offline)    0
> loopback_test (offline)  0
> nvram_test (online)      0
> interrupt_test (online)  0
> link_test (online)       1
>
> Note "*The test result is FAIL", *somehow I believe the above two outputs
> are interlinked (the test result is FAIL because link detected is 'No').
>
> How to fix this to make test result pass and link detected to 'Yes'? For
> other ethernet card I can see the test result passing and link detected is
> 'Yes'
>
> Thanks
> Parvez
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