High packet loss after some time

Discussion in 'Proxmox VE: Networking and Firewall' started by rogatiy, Sep 13, 2018.

  1. rogatiy

    rogatiy New Member

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    Hi!

    I am using Proxmox VE 5.2-2. Mixed KVM/LXC.

    Two days ago, after 50 days of splendid operation, I started experiencing high packet loss around 80% to host and guest machines. Rebooting helped, but the issue came up again after a day. It also appears that it's enough just to restart networking.service on host machine to get 0% packet loss to it, but then all VMs(both KVM and LXC) lose connection to internet and also require networking.service restart.

    I am using a routed network setup with separate IPs for each VM, i.e.: all IPs point to host machine and it acts like a gateway to VMs. (or is it called bridged?)

    Intel E1000 is not the case here, I am using VirtIO network cards for all VMs.

    Also attaching my system report.

    Any help is greatly appreciated.
     

    Attached Files:

  2. rogatiy

    rogatiy New Member

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    It started the day after I created an openSUSE VM and definitely has something to do with it. Packet loss appeared again just now and I managed to resolve it by shutting down VM with openSUSE.
    I am using openSUSE as an OpenLDAP server.
     
  3. rogatiy

    rogatiy New Member

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    Turns out I didn't pay enough attention to security of the openSUSE VM and it was used in a botnet. Thread can be closed.
     
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