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Gigabit Ethernet Dropped Out


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The gigabit connection from my unraid box seems to have dropped out.

 

syslog: http://pastebin.com/hbWYbbPQ

 

Ethtool output:

 

Settings for eth0:

       Supported ports: [ TP MII ]

       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: 1000Mb/s

       Duplex: Full

       Port: MII

       PHYAD: 0

       Transceiver: internal

       Auto-negotiation: on

       Supports Wake-on: pumbg

       Wake-on: g

       Current message level: 0x00000033 (51)

       Link detected: yes

 

Which to me seems fine? My Netgear WNDR700 has an amber light for that port and I can only get 10MB/s throughput.

 

I've tried swapping out the cable, the cable that's connecting the unraid box to the router works fine with my PC also.

 

I have this mobo with built in gigabit NIC: http://www.zotac.com/pdbrochures/mb/NM10-F-E_NM10-DTX-WiFi(D525)_v1.pdf

 

It was working fine previously, is there anything else I can check?

 

Thanks.

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root@unraid:~#  ethtool -S eth0

NIC statistics:

    tx_packets: 1269478865

    rx_packets: 2234096424

    tx_errors: 0

    rx_errors: 13

    rx_missed: 31252

    align_errors: 1413

    tx_single_collisions: 0

    tx_multi_collisions: 0

    unicast: 2233968810

    broadcast: 127614

    multicast: 0

    tx_aborted: 0

    tx_underrun: 0

 

And yeh, I've tried different ports on the router.

 

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The missed and alignment errors suggest it isn't happy.

 

How about:

 

Make sure unRAID and a client are connected using Gb.

At the unRAID console, tail -f /var/log/syslog.

Write a big file to the server from the client system while watching the console.

 

Any errors?

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Ouch.

 

There are too many fragile routers & switches littering offices these days. Had one myself last week that would intermittently trash connections on four ports, and of course it started right when I upgraded a system. "Known-good" has become a much less useful concept.

 

Anyway, glad you made some progress.

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