space_server: bond all 3 gigabit ports, and enjoy 3x1G uplink3x1g-bond

Before:
- enp1s0: wan
- enp2s0: lan (with VLANs)
- enp3s0: mgt

Changes in this patch:
- wan is moved to VLAN id 5
- bond0 is created, replacing lan as lower device for VLANs
- mgt config is removed (could be reconfigured as a VLAN, and
                         made a available on a switch port)
- all 3 ports are enslaved in bond0

From the switch towards the space server load-balance algorithm
src-dst-ip* is used.

From the space server towards the switch L3+L4 is used.

Therefore a single IP pair will always use the same 1G
from the swith to the space server, a client therefore
needs to multiplex over multiple IPs in order to

*) The src-dst-ip algorithm on the switch hasn't been
   tested with IPv6 yet. Hopefully we can find a better
   switch at some point, so we can include the L4 ports in
   the hashing on the switch.

Signed-off-by: Asbjørn Sloth Tønnesen <asbjorn@labitat.dk>

8 files changed, 28 insertions, 30 deletions

diff --git a/roles/space_server/files/networkd/10-bond0.netdev b/roles/space_server/files/networkd/10-bond0.netdev
new file mode 100644
index 0000000..824f3f6
--- /dev/null
+++ b/roles/space_server/files/networkd/10-bond0.netdev
@@ -0,0 +1,11 @@
+[NetDev]
+Name=bond0
+Kind=bond
+
+[Bond]
+Mode=802.3ad
+LACPTransmitRate=fast
+MIIMonitorSec=1s
+UpDelaySec=2s
+DownDelaySec=8s
+TransmitHashPolicy=layer2+3
diff --git a/roles/space_server/files/networkd/10-lan.network b/roles/space_server/files/networkd/10-bond0.network
index 1221be8..39695a4 100644
--- a/roles/space_server/files/networkd/10-lan.network
+++ b/roles/space_server/files/networkd/10-bond0.network
@@ -1,5 +1,5 @@
 [Match]
-Name=lan
+Name=bond0
 
 [Link]
 ARP=no
@@ -11,6 +11,7 @@ IPv6AcceptRA=no
 LinkLocalAddressing=no
 LLMNR=no
 MulticastDNS=no
+VLAN=wan
 VLAN=lan10
 VLAN=lan11
 VLAN=lan12
diff --git a/roles/space_server/files/networkd/10-wan.link b/roles/space_server/files/networkd/10-enp1s0.network
index 47a7270..1395f3a 100644
--- a/roles/space_server/files/networkd/10-wan.link
+++ b/roles/space_server/files/networkd/10-enp1s0.network
@@ -1,5 +1,5 @@
 [Match]
 Path=pci-0000:01:00.0
 
-[Link]
-Name=wan
+[Network]
+Bond=bond0
diff --git a/roles/space_server/files/networkd/10-lan.link b/roles/space_server/files/networkd/10-enp2s0.network
index 996917e..9a987a6 100644
--- a/roles/space_server/files/networkd/10-lan.link
+++ b/roles/space_server/files/networkd/10-enp2s0.network
@@ -1,5 +1,5 @@
 [Match]
 Path=pci-0000:02:00.0
 
-[Link]
-Name=lan
+[Network]
+Bond=bond0
diff --git a/roles/space_server/files/networkd/10-mgt.link b/roles/space_server/files/networkd/10-enp3s0.network
index 715f409..a07d57a 100644
--- a/roles/space_server/files/networkd/10-mgt.link
+++ b/roles/space_server/files/networkd/10-enp3s0.network
@@ -1,5 +1,5 @@
 [Match]
 Path=pci-0000:03:00.0
 
-[Link]
-Name=mgt
+[Network]
+Bond=bond0
diff --git a/roles/space_server/files/networkd/10-mgt.network b/roles/space_server/files/networkd/10-mgt.network
deleted file mode 100644
index d2b34b9..0000000
--- a/roles/space_server/files/networkd/10-mgt.network
+++ /dev/null
@@ -1,23 +0,0 @@
-[Match]
-Name=mgt
-
-[Link]
-RequiredForOnline=no
-
-[Network]
-DHCP=no
-IPv6AcceptRA=no
-LinkLocalAddressing=no
-Address=192.168.112.1/24
-IPForward=ipv4
-DHCPServer=yes
-LLMNR=yes
-MulticastDNS=yes
-LLDP=yes
-EmitLLDP=yes
-
-[DHCPServer]
-EmitDNS=yes
-DNS=185.38.175.0
-EmitNTP=no
-EmitTimezone=yes
diff --git a/roles/space_server/files/networkd/10-wan.netdev b/roles/space_server/files/networkd/10-wan.netdev
new file mode 100644
index 0000000..ea4d8b4
--- /dev/null
+++ b/roles/space_server/files/networkd/10-wan.netdev
@@ -0,0 +1,6 @@
+[NetDev]
+Name=wan
+Kind=vlan
+
+[VLAN]
+Id=5
diff --git a/roles/space_server/files/networkd/10-wan.network b/roles/space_server/files/networkd/10-wan.network
index 36b2230..095bcfe 100644
--- a/roles/space_server/files/networkd/10-wan.network
+++ b/roles/space_server/files/networkd/10-wan.network
@@ -1,6 +1,9 @@
 [Match]
 Name=wan
 
+[Link]
+ARP=yes
+
 [Network]
 DHCP=no
 IPv6AcceptRA=no