[SOLVED] [PDM 1.1.7] VM/LXC Migration - Specify Migration Network or Use Proxmox Management ?

[SInisterPisces]

Ref: https://pdm.proxmox.com/docs/roadmap.html

I didn't see anything in the documentation or the roadmap regarding this, but it's Monday so my reading comprehension might not be at its best.

I have a single interface (nic0) on my default PDM install that's on my PVE cluster management subnet/VLAN (1 Gbps NIC; MTU 1500).

I see that I can add more NICs or even create a bond or bridge, but I don't see an option to specify a specific (e.g., 10 Gbps or faster) interface for VM/LXC migration.

Does PDM actually support a separate migration interface (the way PVE does), or is this not a feature yet? I looked at the Roadmap and saw that further enhancements to other networking features were coming, but I didn't see anything about this.

If a separate migration interface is not supported, am I correct that I'd need to configure the PVE management network itself for 10 Gbps performance? (That is, set all the PVE and PDM management interfaces to 10 Gbps/MTU 9000?)

I prefer to run my PVE nodes with a dedicated 1 Gbps NIC for management and other NIC(s) for higher-speed networking, so that seems a bit awkward. I also feel like my preferred configuration isn't unusual, so maybe I'm missing something?

 

[longer]

There's an enhancement request:
https://bugzilla.proxmox.com/show_bug.cgi?id=6967

Its also discussed in the thread:

[SOLVED] Post in thread 'PDM Migration Network'

Oct 23, 2025

Hi,

my guess is that on the PDM you use the cross-cluster migration?
If yes, the hostname/ips used in the remote configuration of the PDM is used for the migration, so which network is used depends on the network/dns/etc. setup

• dcsapak

 

[SInisterPisces]

Thanks!

Marking this as solved so the discussion stays over there.