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Hi mj,
can't you separate your Ceph traffic in a VLAN?
bond0 (slaves enp2...)
vmbr0 (slave bond0) 192.168.143.10/24
bond0.10 10.0.0.10/24
And off course your switches also need to be aware of VLAN 10 on the MLAG.
Never used MLAG, but with LACP this works for me.
Regards
Bastian
Am 23.03.2021 um 11:42 schrieb mj:
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?
The setup is based (freely) on the pve docs:
https://pve.proxmox.com/wiki/Network_Configuration#_linux_bond
Thanks!
MJ
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Bastian Sebode
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