Breaking the Bond

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Breaking the Bond

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1 min read

Mistakes were made ๐Ÿคฆ๐Ÿปโ€โ™‚๏ธ

Recently I needed to edit the network configuration on my Proxmox cluster in the colocation. This process resulted in reconfiguring all network interfaces on all nodes because of a mistake I made. In the process, I needed to break the LACP bond to the OpenVSwitch to make a couple of changes and then recreate the bond.

Current State

Thank you port descriptions on Cisco switches. All 4 PVE nodes are configured the same and the interfaces are also in the same order. The commands and examples are for a Cisco WS-C3750X-48T-S Just to preface the below: this is more for my reference for when I inevitably make a mistake in the future.

interface GigabitEthernet2/0/28
 description pve-eno3-bond0
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group Y mode active
end

Break it

To break the bond and enable the eno3 interface to act as a standard switch port:

interface GigabitEthernet2/0/28
 no channel-group
 switchport native vlan XX

From here the switchport acts like a standard trunk port on the VLAN specified.

Un-break it

To re-enable:

interface GigabitEthernet2/0/28
 no switchport native vlan XX
 channel-group Y mode active

And there you have it. We were able to break the bond, assign the port to a default VLAN, and then return everything to normal.

Hopefully, this helps!

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