Opensuse 15 JeOS, Eth0 dropping packets

English Network/Internet
#1

Hi all, So I’m new here, but I wanted to start using OpenSuse as my main OS of choice.
To facilitate the transition I decided to install Leap 15 JeOS onto my Raspberry Pi 3
Everything is working mostly as it should, I have my wifi connected, and use this to ssh in to the Pi running headless.
The problem I’m having is that Eth0 is dropping lots of packets.
wlan0 is on the 192.168.1.x network.

I have separated eth0 to 192.168.0.5 for troubleshooting the issue.

192.168.1.1 is my main gateway, that has a connection to the internet.
I have no access to the config on this device as its a OEM Huawei router.


eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.5  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::ba27:ebff:fe11:8935  prefixlen 64  scopeid 0x20<link>
        ether b8:27:eb:11:89:35  txqueuelen 1000  (Ethernet)
        RX packets 1757  bytes 81342 (79.4 KiB)
        RX errors 0  dropped 1695  overruns 0  frame 0
        TX packets 14  bytes 1184 (1.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.2  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::ba27:ebff:fe44:dc60  prefixlen 64  scopeid 0x20<link>
        ether b8:27:eb:44:dc:60  txqueuelen 1000  (Ethernet)
        RX packets 754  bytes 64545 (63.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 441  bytes 64954 (63.4 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

If anyone can assist me in diagnosing this problem I would be gratefully appreciated.

Kind regards

Bp

#2

The cause could possibly be:

  • at least one “not properly plugged in” Ethernet connector
  • or, dirty Ethernet connector contacts
  • or, a damaged Ethernet cable
  • or, at least one damaged Ethernet connector.

Possible worst case cause:

  • Either, broken Raspberry Pi Ethernet hardware
  • or, broken Router Ethernet hardware.

Unlikely, but possible absolute worst case cause:

  • The failure mode of one of the Ethernet hardware components was such that the Ethernet hardware on the other end of the cable has also been damaged – not so common these days but, still possible if the hardware developers had forgotten the lessons of the past …
#3

Thanks for the feedback.

I’ve already asked a friend to bring me a spare ethernet cable…
I remember the days when I had ethernet cables everywhere :O, who would have known, not being able to find an ethernet cable would be a problem.

#4

Just want to verify you’ve selected the right image for your purposes…

JeOS is a stripped down version of openSUSE, not just “text mode.”
That means that things like documentation, common tools like those for network troubleshooting are not installed.
JeOS is usually for when you’re deploying a single purpose Sever to deliver specified functionality, and not a variety of uses… Although perhaps with enough work you could probably bring a JeOS up to what most people expect in a machine you might log into, and use for various purposes.

As for your dropped packet problem,
You should probably describe the symptoms or monitoring that indicates dropped packets.
If I suspect something like dropped packets, I usually do a tcpdump and then analyze using wireshark or a spreadsheet.

TS

#5

Hi TS,

Im using just enough OS, as I feel I get better exposure to learning opensuse, while I build a system to my needs.
I just install what I need, when I need it.

As soon as I get a new ethernet cable on the RPI, ill take your advice and run tcpdump on Eth0, and gather additional information.

Thanks