Okay, seems I've figured it out. But it was not an easy one. The
documentation about this is nonexistent.
When using overlays with VMs, the overlays are created automatically and
they don't need to be created by dladm command.
Here's the thing:
- on each server, you need to create this file with parameters how to
(automatically) create an overlay:
# mkdir -p /var/run/smartdc/networking/
# vim /var/run/smartdc/networking/overlay_rules.json
{
"myoverlay": "-e vxlan -s direct -p vxlan/listen_ip=158.69.227.172
-p direct/dest_ip=95.168.205.35 -p direct/dest_port=4789 -p vnetid=666
-p mtu=1400"
}
- on the other server, swap listen and dest IP
- test that your overlay is recognized:
# nictagadm list | grep myoverlay
- and when creating a VM, reference the nic tag this way:
"nics": [
{
"interface": "net0",
"nic_tag": "myoverlay/7",
"vlan_id": 555,
...
}
- note that overlays as nic_tag need to be referenced by name and a
(random) number after slash
- and also note that "-s direct" overlay can be created only between two
(and no more) SmartOS servers
Hope it will help somebody.
Jan
On 7. 6. 2017 14:55, Ján Poctavek wrote:
Hi guys,
I'm trying to work with SmartOS overlays and it seems I'd really
utilize some help here. I have created a simple point-to-point
(direct) overlay between two servers:
- node1:
dladm create-overlay -e vxlan -s direct -p
vxlan/listen_ip=158.69.227.172 -p direct/dest_ip=95.168.205.35 -p
direct/dest_port=4789 -v 666 olay0
dladm create-vnic -l olay0 -v 555 olayvlan0
ipadm create-if olayvlan0
ipadm create-addr -t -T static -a 10.79.79.101 olayvlan0/olay
node2:
dladm create-overlay -e vxlan -s direct -p
direct/dest_ip=158.69.227.172 -p vxlan/listen_ip=95.168.205.35 -p
direct/dest_port=4789 -v 666 olay0
dladm create-vnic -l olay0 -v 555 olayvlan0
ipadm create-if olayvlan0
ipadm create-addr -t -T static -a 10.79.79.100 olayvlan0/olay
To this point, everything is working fine and I can ping the
addresses.
But I'm unable to figure out how can I use the overlays in vmadm.
Nictagadm refuses to add nic tag on overlay (as it does with etherstubs).
Any hints?
Thank you.
Jan
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