[PVE-User] Bonding and packetloss

Robert Fantini robertfantini at gmail.com
Mon Sep 4 00:35:51 CEST 2017


using netgear we had stability issues to nodes running vm's when mode 6 was
used. mode 3 is stable.

 switch to switch mode 6 works here.

 I posted to netgear managed switch forums.  [their support has been be
great].  and have  much some useless and other useful detail there. i am
not a kernel network expert , however this looks like a setting at
/etc/network/interfaces  vmbr* setting . or a kernel thing.


On Fri, Sep 1, 2017 at 4:22 PM, Daniel <daniel at linux-nerd.de> wrote:

> Hi there,
>
> here is a small overview if my Network:
>
> 2x HP Switches. Both are connected with 4x 1Gbit with a LACP Trunk to each
> other – Working as expected.
>
> Now my Problem, I configured all my hosts with Bond Mode 6 and conncted 1
> NIC to Switch One and the other to Switch Two
> Sometimes I got packetloss and see a Kernel error like this: vmbr0:
> received packet on bond0 with own address as source address
> (addr:0c:c4:7a:aa:5c:e4, vlan:0)
>
> Some hosts are working pretty well and some has Packet Loss.
> After adding some “rules” to a host which has loss the error messages
> disappear but the loss (less loss) still exists.
> Is there any special hint what can be the matter? When I change to
> active/passive mode all is fine.
>
> This is my interfaces config which has packetloss:
>
> auto lo
> iface lo inet loopback
>
> iface eno1 inet manual
>
> iface eno2 inet manual
>
> auto bond0
> iface bond0 inet manual
>                 slaves eno1 eno2
>                 bond_miimon 100
>                 bond_mode 6
>
> auto vmbr0
> iface vmbr0 inet static
>                 address  10.0.2.111
>                 netmask  255.255.255.0
>                 gateway  10.0.2.1
>                 bridge_ports bond0
>                 bridge_stp off
>                 bridge_fd 0
>                 bridge_maxage 0
>                 bridge_ageing 0
>                 bridge_maxwait 0
>
> I am absolutely without any glue ☹ tested a lot and nothing really helps
> to solve this problem.
>
> --
> Grüsse
>
> Daniel
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