[PVE-User] Proxmox VE 7.2 released!

[PVE-User] Proxmox VE 7.2 released!

[Martin Maurer]

Hi all,

we're excited to announce the release of Proxmox Virtual Environment 
7.2. It's based on Debian 11.3 "Bullseye" but using a newer Linux kernel 
5.15.30, QEMU 6.2, LXC 4, Ceph 16.2.7, and OpenZFS 2.1.4 and countless 
enhancements and bugfixes.

Here is a selection of the highlights

- Support for the accelerated virtio-gl (VirGL) display driver
- Notes templates for backup jobs (e.g. add the name of your VMs and CTs 
to the backup notes)
- Ceph erasure code support
- Updated existing and new LXC container templates (New: Ubuntu 22.04, 
Devuan 4.0, Alpine 3.15)
- ISO: Updated memtest86+ to the completely rewritten 6.0b version, 
adding support for UEFI and modern memory like DDR5
- and many more GUI enhancements

As always, we have included countless bugfixes and improvements on many 
places; see the release notes for all details.

Release notes
https://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_7.2

Press release
https://www.proxmox.com/en/news/press-releases/proxmox-virtual-environment-7-2-available

Video tutorial
https://www.proxmox.com/en/training/video-tutorials/item/what-s-new-in-proxmox-ve-7-2

Download
https://www.proxmox.com/en/downloads
Alternate ISO download:
https://enterprise.proxmox.com/iso

Documentation
https://pve.proxmox.com/pve-docs

Community Forum
https://forum.proxmox.com

Bugtracker
https://bugzilla.proxmox.com

Source code
https://git.proxmox.com

We want to shout out a big THANK YOU to our active community for all 
your intensive feedback, testing, bug reporting and patch submitting!

FAQ
Q: Can I upgrade Proxmox VE 7.0 or 7.1 to 7.2 via GUI?
A: Yes.

Q: Can I upgrade Proxmox VE 6.4 to 7.2 with apt?
A: Yes, please follow the upgrade instructions on 
https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0

Q: Can I install Proxmox VE 7.2 on top of Debian 11.x "Bullseye"?
A: Yes, see 
https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_11_Bullseye

Q: Can I upgrade my Proxmox VE 6.4 cluster with Ceph Octopus to 7.2 with 
Ceph Octopus/Pacific?
A: This is a two step process. First, you have to upgrade Proxmox VE 
from 6.4 to 7.2, and afterwards upgrade Ceph from Octopus to Pacific. 
There are a lot of improvements and changes, so please follow exactly 
the upgrade documentation:
https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0
https://pve.proxmox.com/wiki/Ceph_Octopus_to_Pacific

Q: Where can I get more information about feature updates?
A: Check the https://pve.proxmox.com/wiki/Roadmap, 
https://forum.proxmox.com/, the https://lists.proxmox.com/, and/or 
subscribe to our https://www.proxmox.com/en/news.
-- 
Best Regards,

Martin Maurer

martin@proxmox.com
https://www.proxmox.com

[PVE-User] Proxmox VE 7.2 - Problem of understanding 'bridge-disable-mac-learning'

[Martin Dziobek]

Dear all,

In the Release Notes of 7.2, it says:

"Administrators can now disable MAC learning on a bridge in /etc/network/interfaces with the bridge-disable-mac-learning flag.
This reduces the number of packets flooded on all ports (for unknown MAC addresses), preventing issues with certain hosting 
providers (for example, Hetzner), which resulted in the Proxmox VE node getting disconnected"

where as in descriptions of how to disable mac bridge learning
for example on  https://www.xmodulo.com/disable-mac-learning-linux-bridge.html

it says:

"Once MAC learning is turned off, a Linux bridge will flood every incoming packet to the rest of the ports. 
Understand this implication before proceeding."

So flooding is reduced *or* increased ...

May someone shed a light on this ?

Best regards,
Martin

Re: [PVE-User] Proxmox VE 7.2 - Problem of understanding 'bridge-disable-mac-learning'

[Stoiko Ivanov]

hi,


On Wed, 4 May 2022 14:10:59 +0200
Martin Dziobek <dziobek@hlrs.de> wrote:

> Dear all,
> 
> In the Release Notes of 7.2, it says:
> 
> "Administrators can now disable MAC learning on a bridge in /etc/network/interfaces with the bridge-disable-mac-learning flag.
> This reduces the number of packets flooded on all ports (for unknown MAC addresses), preventing issues with certain hosting 
> providers (for example, Hetzner), which resulted in the Proxmox VE node getting disconnected"
> 
> where as in descriptions of how to disable mac bridge learning
> for example on  https://www.xmodulo.com/disable-mac-learning-linux-bridge.html
> 
> it says:
> 
> "Once MAC learning is turned off, a Linux bridge will flood every incoming packet to the rest of the ports. 
> Understand this implication before proceeding."
> 
> So flooding is reduced *or* increased ...
> 
> May someone shed a light on this ?
I think the commit message of the relevant commit describes the situation
quite well:
https://git.proxmox.com/?p=pve-common.git;a=commit;h=354ec8dee37d481ebae49b488349a8e932dce736

it disables learning on the individual ports - but at the same time also
the unicast_flood flag is set to false - see `man 8 bridge` - so I'd
expect the combination of the 2 to work as advertised
(and will try to rephrase the release note entry a bit too be less
confusing)

I hope this helps!

Best regards,
stoiko

Re: [PVE-User] Proxmox VE 7.2 - Problem of understanding 'bridge-disable-mac-learning'

[DERUMIER, Alexandre]

mmm,looking at the git, it seem that qemu-server && pve-container patch
es to register mac address in bridge are not applied ...


[pve-devel] [PATCH V2 qemu-server 0/3] add disable bridge learning
feature
	https://lists.proxmox.com/pipermail/pve-devel/2022-March/052210.html
	
[pve-devel] [PATCH V2 pve-container 0/1] add disable bridge learning
feature
		https://lists.proxmox.com/pipermail/pve-devel/2022-March/052206.html




Le mercredi 04 mai 2022 à 15:39 +0200, Stoiko Ivanov a écrit :
> hi,
> 
> 
> On Wed, 4 May 2022 14:10:59 +0200
> Martin Dziobek <dziobek@hlrs.de> wrote:
> 
> > Dear all,
> > 
> > In the Release Notes of 7.2, it says:
> > 
> > "Administrators can now disable MAC learning on a bridge in
> > /etc/network/interfaces with the bridge-disable-mac-learning flag.
> > This reduces the number of packets flooded on all ports (for
> > unknown MAC addresses), preventing issues with certain hosting 
> > providers (for example, Hetzner), which resulted in the Proxmox VE
> > node getting disconnected"
> > 
> > where as in descriptions of how to disable mac bridge learning
> > for example on 
> > https://antiphishing.cetsi.fr/proxy/v3?i=ZUcyY1RmWEJYTXg4endZcf4pHMlLXnVUx16Ppu9iYP8&r=N3ZnQkVkbG1hOHVwcWFJNMLpdiUetyglobBNT6FebFASxxZ1q4z56SmutCfWl0tQ&f=RkdqNzdIQkFjZzVZTkZxbZ21HjwKhyMg-rZGU8E0XD_frmmy_SGxhjX_N0NdVXVt8hYCzR91DADKO1rwT7UlwQ&u=https%3A//www.xmodulo.com/disable-mac-learning-linux-bridge.html&k=YkLs
> > 
> > it says:
> > 
> > "Once MAC learning is turned off, a Linux bridge will flood every
> > incoming packet to the rest of the ports. 
> > Understand this implication before proceeding."
> > 
> > So flooding is reduced *or* increased ...
> > 
> > May someone shed a light on this ?
> I think the commit message of the relevant commit describes the
> situation
> quite well:
> https://antiphishing.cetsi.fr/proxy/v3?i=ZUcyY1RmWEJYTXg4endZcf4pHMlLXnVUx16Ppu9iYP8&r=N3ZnQkVkbG1hOHVwcWFJNMLpdiUetyglobBNT6FebFASxxZ1q4z56SmutCfWl0tQ&f=RkdqNzdIQkFjZzVZTkZxbZ21HjwKhyMg-rZGU8E0XD_frmmy_SGxhjX_N0NdVXVt8hYCzR91DADKO1rwT7UlwQ&u=https%3A//git.proxmox.com/%3Fp%3Dpve-common.git%3Ba%3Dcommit%3Bh%3D354ec8dee37d481ebae49b488349a8e932dce736&k=YkLs
> 
> it disables learning on the individual ports - but at the same time
> also
> the unicast_flood flag is set to false - see `man 8 bridge` - so I'd
> expect the combination of the 2 to work as advertised
> (and will try to rephrase the release note entry a bit too be less
> confusing)
> 
> I hope this helps!
> 
> Best regards,
> stoiko
> 
> 
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