LACP not working between Proxmox and Meraki SW

R

raguilera

New Member
Mar 19, 2025
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Hi...

I'm configuring a new Proxmox server and have it connected to a Meraki Switch. My idea is to create an LACP bundle to provide more speed and redundancy, but every time I configure the LACP portion on the Meraki switch it always tells me that LACP is not enabled on the other side (Proxmox server) and disabled all ports. I've checked other forums and found that the command "bond-lacp-rate slow" could help, but nothing so far.

Here's the configuration on Proxmox:
--------------------------------------------------------------------
auto eno1
iface eno1 inet manual

auto eno2
iface eno2 inet manual

auto eno3
iface eno3 inet manual

auto eno4
iface eno4 inet manual

auto bond0
iface bond0 inet manual
bond-slaves eno1 eno2 eno3 eno4
bond-miimon 100
bond-mode 802.3ad
bond-xmit-hash-policy layer2+3
bond-lacp-rate slow

auto vmbr0
iface vmbr0 inet manual
bridge-ports bond0
bridge-stp off
bridge-fd 0
bridge-vlan-aware yes
bridge-vids 2-4094

auto vmbr0.10
iface vmbr0.10 inet static
address 192.168.128.242/24
gateway 192.168.128.1
--------------------------------------------------------------------

Any ideas?
 
Solved!!
Worked with Meraki support and they had to do an option change on the backend of the switch. There seems to be an issue that the Proxmox (and other equipment like fortigate) are not sending (or are sending) some kind of priority information in the lacp packets that the meraki does not like. They basicly configured the LACP ports to ignore these packets and then everything works..
If you are having this same issue you can point support to ticket 12958162

Good luck (the config that is shown above works fine)
 
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