On 23.03.2021 11:42, mj wrote:
Hi all,
First some info:
10.0.0.0/24 is ceph storage
192.168.143.0/24 is our LAN
I am trying to make this /etc/networking/interfaces work in in pve:
auto enp2s0f0
iface enp2s0f0 inet manual
#mlag1
auto enp2s0f1
iface enp2s0f1 inet manual
#mlag2
iface enp0s25 inet manual
#management
auto bond0
iface bond0 inet static
address 10.0.0.10/24
bond-slaves enp2s0f0 enp2s0f1
bond-miimon 100
bond-mode active-backup
bond-primary enp2s0f0
auto vmbr0
iface vmbr0 inet static
address 192.168.143.10/24
gateway 192.168.143.1
bridge-ports bond0
bridge-stp off
bridge-fd 0
We will connect pve servers to two mlagged arista 40G switches. The
10.0.0.0/24 ceph network will remain local on the two aristas, and
192.168.143.0/24 will be routed to our core switch.
The VM IPs are in the LAN 192.168.143.0/24 range, and obviously don't
require access to 10.0.0.0/24
We connect the VMs to vmbr0 and assign VLANs to them by configuring a
VLAN tag in the proxmox VM config. This works. :-)
However, assigning the IP address to bond0 does NOT work. The IP address
is ignored. bond0 works, but is IP-less. Adding the IP address manually
after boot works, using:
ip addr add 10.0.0.10/24 dev bond0
Why is this ip address not assigned to bond0 at boot time?
Is it not possible to have an IP on both bond0 and vmbr0, when bond0 is
also used as a bridge port?
No you can not use the ip on the bond and the bridge; while you can run
2 ip's on bridge, that is a bit ugly.
the way we do it is running vlan's on the bond, into a vlan aware bridge
auto ens6f0
iface ens6f0 inet manual
mtu 9700
auto ens6f1
iface ens6f1 inet manual
mtu 9700
auto bond0
iface bond0 inet manual
slaves ens6f0 ens6f1
bond_miimon 100
bond_mode 1
bond_xmit_hash_policy layer3+4
mtu 9700
auto vmbr0
iface vmbr0 inet manual
bridge_ports bond0
bridge_stp off
bridge_maxage 0
bridge_ageing 0
bridge_maxwait 0
bridge_fd 0
bridge_vlan_aware yes
mtu 9700
up echo 1 >
/sys/devices/virtual/net/vmbr0/bridge/multicast_querier
up echo 0 >
/sys/devices/virtual/net/vmbr0/bridge/multicast_snooping
then define an vlan interface per subnet
auto vmbr0.10
iface vmbr0.10 inet6 static
address 2001:db8:2323::11
netmask 64
gateway 2001:bd8:2323::1
mtu 1500
vm's attach to vmbr0 + the tag for the vlan they should be in.
good luck
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