[SOLVED] Setup VLANs with OVS, need help

vooze

Member
May 11, 2017
77
20
8
34
Hi

I'm trying to setup VLANs for my Proxmox 5.0 server.

Looking at https://www.reddit.com/r/homelab/comments/5zt504/proxmox_vlans/ I have made the following /etc/network/interfaces:

Code:
auto lo
iface lo inet loopback

auto enp6s0
iface enp6s0 inet manual

auto enp5s0
iface enp5s0 inet manual

allow-vmbr0 bond0
iface bond0 inet manual
    ovs_bonds enp6s0 enp5s0
    ovs_type OVSBond
    ovs_bridge vmbr0
    ovs_options lacp=active bond_mode=balance-tcp other_config:lacp-time=fast

auto vmbr0
iface vmbr0 inet manual
    ovs_type OVSBridge
    ovs_ports bond0 vlan2

allow-vmbr0 vlan2
iface vlan2 inet static
    address  172.16.1.1
    netmask  255.255.0.0
    gateway  172.16.0.1
    ovs_type OVSIntPort
    ovs_bridge vmbr0
    ovs_options tag=2

In my HP switch I have tagged both VLAN 2 + 4 on my BAGG2 (LACP LAGG) and set it to trunk (Just like my pfSense LAGG, which works just fine!)

After a reboot, 172.16.1.1 is down and no VMs are starting. Looking at ip addr, I can't see the IP (172.16.1.1) only lo,enp5s0 and enp6s0 (vlan2 and vmbr0 should be there right??)

What am I missing here?

I tried various things (removing the bond0, and only using one NIC with tagged VLAN2) and other things, none seem to work :(

Please help.
 

udo

Famous Member
Apr 22, 2009
5,923
180
83
Ahrensburg; Germany
Hi,
looks not bad for me.

I would check with simpler bond mode first.

With such settings I have run some Cluster on two switche:
Code:
auto lo
iface lo inet loopback

iface enp6s0 inet manual

iface enp5s0 inet manual

allow-vmbr0 bond0
iface bond0 inet manual
    ovs_bonds enp6s0 enp5s0
    ovs_type OVSBond
    ovs_bridge vmbr0
    ovs_options bond_mode=active-backup

auto vmbr0
iface vmbr0 inet manual
    ovs_type OVSBridge
    ovs_ports bond0 vlan2

allow-vmbr0 vlan2
iface vlan2 inet static
    address  172.16.1.1
    netmask  255.255.0.0
    gateway  172.16.0.1
    ovs_type OVSIntPort
    ovs_bridge vmbr0
    ovs_options tag=2
tcpdump is very helpfull for debugging.

Udo
 

vooze

Member
May 11, 2017
77
20
8
34
Hi,
looks not bad for me.

I would check with simpler bond mode first.

With such settings I have run some Cluster on two switche:
Code:
auto lo
iface lo inet loopback

iface enp6s0 inet manual

iface enp5s0 inet manual

allow-vmbr0 bond0
iface bond0 inet manual
    ovs_bonds enp6s0 enp5s0
    ovs_type OVSBond
    ovs_bridge vmbr0
    ovs_options bond_mode=active-backup

auto vmbr0
iface vmbr0 inet manual
    ovs_type OVSBridge
    ovs_ports bond0 vlan2

allow-vmbr0 vlan2
iface vlan2 inet static
    address  172.16.1.1
    netmask  255.255.0.0
    gateway  172.16.0.1
    ovs_type OVSIntPort
    ovs_bridge vmbr0
    ovs_options tag=2
tcpdump is very helpfull for debugging.

Udo

Thank for for your reply.

I have already tried without bonds (just using one nic) and it did not make a difference.

I can't really just tcpdump, since the host have no interfaces up and running, when trying to ping something, I simply get "no network connection" or something along those lines (can't remember the exact output)
 

vooze

Member
May 11, 2017
77
20
8
34
Hi,
how looks
Code:
ip a s
Are your interface up?

Udo

Wow, do I feel stupid, I forgot to install openvswitch-switch. The thread on reddit did not mention that I needed a package, and I just found out on proxmox wiki.

Everything works with the initial config. Hope this helps others!

Thanks for lot for your help :D
 

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