Arch Linux

wutzi

Member

Registered: 2013-11-25

Posts: 4

Cable network disabling itself

Hi,

I'm running arch on my Laptop. A few days ago the cable network stopped working. In the network settings of gnome it only shows the MAC address and when I set the switch to on it changes back to of a few seconds later. The output of ip looks like this:

# ip addr show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:26:b0:e2:b6:d4 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::226:b0ff:fee2:b6d4/64 scope link
       valid_lft forever preferred_lft forever

# 2: ip link show eth0
eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 00:26:b0:e2:b6:d4 brd ff:ff:ff:ff:ff:ff

Turning the ip link down and up didn't change anything.
I've already tried resetting the switch it is connected to, but that didn't help either.
I don't know what I did to break it or how to fix it back and googling it wasn't any help.
Any ideas?

loafer

Member

From: the pub

Registered: 2009-04-14

Posts: 1,772

Re: Cable network disabling itself

See if the output of "journalctl |grep eth0" and "dmesg |grep eth0" give you any further clues.

---

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For freedom is the man that will turn the world upside down.
Gerrard Winstanley.

wutzi

Member

Registered: 2013-11-25

Posts: 4

Re: Cable network disabling itself

The journalctl finds nothing conserning eth0. dmesg looks unproblematic to me:

dmesg |grep eth
[    0.225481] reboot: PCI series board detected. Selecting Apple MacBookPro5-method for reboots.
[   10.977579] forcedeth: Reverse Engineered nForce ethernet driver. Version 0.64.
[   10.977594] forcedeth 0000:00:0a.0: enabling device (0000 -> 0003)
[   10.977886] forcedeth 0000:00:0a.0: setting latency timer to 64
[   11.037816] forcedeth 0000:00:0a.0: ifname eth0, PHY OUI 0x732 @ 1, addr 00:26:b0:e2:b6:d4
[   11.037821] forcedeth 0000:00:0a.0: highdma csum pwrctl gbit lnktim msi desc-v3
[   23.635859] forcedeth 0000:00:0a.0: irq 45 for MSI/MSI-X
[   23.635892] forcedeth 0000:00:0a.0 eth0: MSI enabled