[PVE-User] pve-user Digest, Vol 114, Issue 2

[Chris Tomkins]

Hi Daniel,

It sounds to me like the switch end is not doing LACP properly. As a
result, broadcasts are coming back to Proxmox unexpectedly. Double check
your bonding settings at both ends. Good luck!

Chris

On 2 September 2017 at 11:00, <pve-user-request at pve.proxmox.com> wrote:

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>    1. Bonding and packetloss (Daniel)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 1 Sep 2017 20:22:48 +0000
> From: Daniel <daniel at linux-nerd.de>
> To: PVE User List <pve-user at pve.proxmox.com>
> Subject: [PVE-User] Bonding and packetloss
> Message-ID: <9989D57B-2C37-46D8-9CF0-D36E7097F061 at linux-nerd.de>
> Content-Type: text/plain; charset="utf-8"
>
> 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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> End of pve-user Digest, Vol 114, Issue 2
> ****************************************
>



-- 

Chris Tomkins

Brandwatch | Senior Network Engineer (Linux/Network)

christ at brandwatch.com | (+44) 01273 448 949

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