[SOLVED] SDN - bridge does not exist

[pille99]

hello all

i created sdn (zone, with peer list and nodes),
added Vnet with reference to the zone and tag (no vlan aware)
created 6 Subnets x.x.x0/28, gw x.x.x.1

create vm, add network
on the bridge i can see the vnet, choose one of the created one.

start the VM - failed
in the log is written





bridge 'SharSvcs' does not exist
kvm: -netdev type=tap,id=net0,ifname=tap1107i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on: network script /var/lib/qemu-server/pve-bridge failed with status 512
TASK ERROR: start failed: QEMU exited with code 1

what could be the issue ?

 

[Astraea]

Do you have a linux or OVS bridge called SharSvcs on your Proxmox node?

 

[pille99]

linux
there is no much diference between linux and ovs bridge. itsnt it ?

but i havent created a bridge for the sdn. the sdn vnet called sharsvcs.

 

[pille99]

move to the first

 

[Astraea]

From what I know in my use case the biggest different for me was that OVS supported VLANs without having to specify it each time, but I haven't really looked into the difference between them in detail, I only did a little digging when I was first learning proxmox and needed to have VLAN support in a previous version before SDN.

In order for the SDN to work correctly when you assign it a bridge that bridge has to exist, it is how you get the SDN to communicate through to the network hardware in the system.

 

[pille99]

is possible to run linux and ovs bridge to the same time ?
i dont want to reconfigure right now everything

 

[aaron]

is possible to run linux and ovs bridge to the same time ?

yes

on the problem itself; did you apply the SDN configuration? After any changes you need to apply them in the main DC->SDN panel.

 

[pille99]

yes, did apply. but what i have missed. the apply didnt complete
error


Failed to disable unit: Unit file dnsmasq@.service does not exist.

TASK ERROR: Could not run before_regenerate for DHCP plugin dnsmasq command 'systemctl disable dnsmasq@' failed: exit code 1

only on node 1 out of 4

 

[Astraea]

have you created a bridge named "SharSvcs"? can you also post the following outputs:

• System -> Network for each node in your cluster
• Datacenter -> SDN
• Datacenter -> SDN -> Zones
• Datacenter -> SDN -> VNets

 

[pille99]

do i need to create a brigde or int port ? a bridge needs to connected to physically device. its internal traffic

the picture is what i am trying to archive

i created vxlan already, but i didnt configure "subnets" and there was no bridge needed. so i dont understand why i need a bridge now

Edit: i send you the configs later the day, if the issue https://forum.proxmox.com/threads/local-sdn-network-configuration-is-too-old-please-reload.144442/ is sorted. i reseted the last changes.

 

[aaron]

The bridge you define when creating a new SDN zone needs to be already configured on the nodes. It is the layer where you can handle different hardware (NIC) situations in the servers, as it is not a given that they are all build the same.

 

[pille99]

will do as soon this is resolved
https://forum.proxmox.com/threads/local-sdn-network-configuration-is-too-old-please-reload.144442/
or do you thing it will have any influence if i take the change now ?

 

[pille99]

just for anybody curious out there. which is nowhere mentioned, i found it in a previous thread here

if you want an internal vSwitch, create a bridge and dont connect them to a physically device. than you can connect your opnsense of pfsense to the vSwitch and all traffic will go over the opnsense