Red interface going down every few seconds

1

Hi All,

Seemingly since the core 160 update, the red0 interface goes down and renegotiates constantly, up until the point where it fails to come back up.

This is a snippet from the logs

Oct 18 09:35:18 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:35:19 CW-IPFire ntpd[3076]: Deleting interface #88 red0, 81.178.72.22#123, interface stats: received=0, sent=0, dropped=0, active_time=235355 secs
Oct 18 09:35:20 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:35:22 CW-IPFire ntpd[3076]: Listen normally on 89 red0 81.178.72.22:123
Oct 18 09:42:14 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:42:16 CW-IPFire ntpd[3076]: Deleting interface #89 red0, 81.178.72.22#123, interface stats: received=0, sent=0, dropped=0, active_time=414 secs
Oct 18 09:42:17 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:42:19 CW-IPFire ntpd[3076]: Listen normally on 90 red0 81.178.72.22:123
Oct 18 09:43:27 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:43:28 CW-IPFire ntpd[3076]: Deleting interface #90 red0, 81.178.72.22#123, interface stats: received=0, sent=0, dropped=0, active_time=69 secs
Oct 18 09:43:29 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:43:31 CW-IPFire ntpd[3076]: Listen normally on 91 red0 81.178.72.22:123
Oct 18 09:46:38 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:46:38 CW-IPFire kernel: igb 0000:01:00.0 red0: Reset adapter
Oct 18 09:46:39 CW-IPFire ntpd[3076]: Deleting interface #91 red0, 81.178.72.22#123, interface stats: received=0, sent=0, dropped=0, active_time=188 secs
Oct 18 09:46:44 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:46:46 CW-IPFire ntpd[3076]: Listen normally on 92 red0 81.178.72.22:123
Oct 18 09:47:06 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:47:08 CW-IPFire ntpd[3076]: Deleting interface #92 red0, 81.178.72.22#123, interface stats: received=0, sent=0, dropped=0, active_time=22 secs
Oct 18 09:47:09 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:47:10 CW-IPFire ntpd[3076]: Listen normally on 93 red0 81.178.72.22:123
Oct 18 09:47:13 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:47:15 CW-IPFire ntpd[3076]: Deleting interface #93 red0, 81.178.72.22#123, interface stats: received=0, sent=0, dropped=0, active_time=5 secs
Oct 18 09:47:33 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:47:34 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:47:37 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:47:37 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:47:40 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:47:41 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:47:43 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:47:44 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:47:47 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:47:48 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Down
Oct 18 09:47:50 CW-IPFire kernel: igb 0000:01:00.0 red0: igb: red0 NIC Link is Up 10 Mbps Full Duplex, Flow Control: RX/TX
Oct 18 09:47:52 CW-IPFire ntpd[3076]: Listen normally on 94 red0 81.178.72.22:123

We’ve replaced all the cables just in case, but the problem is persisting. I looked for way to roll back the core version but couldn’t find anything.

Any help would be greatly appriciated!

Thank you for your time,

2

IPFire has no function to rollback a core update but in core160 is no kernel update so the drivers was not changed at all in comparison to core159.

For me this looks like an cable problem and i would suggest to exchange the cables but you have already done this.
Sometimes also a nic or modem/switch is faulty and cause such link losses. Also grounding the cases or shielding on Ethernet cables sometimes made such strange issues. (Sometimes a short extension cable without shield solve such earth potential issues.)

3 Likes
3

Hi Arne,

That’s really helpful thank you. We’ll move the IPFire box closer to the fibre connection and monitor it.

4

Looks very much like a broken cable/NIC to me, too.