Bug 601226

Summary:	disable qemu vlans
Product:	Red Hat Enterprise Linux 6	Reporter:	Michael S. Tsirkin <mst>
Component:	qemu-kvm	Assignee:	Markus Armbruster <armbru>
Status:	CLOSED WONTFIX	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	low
Version:	6.0	CC:	amit.shah, armbru, gyue, khong, llim, mkenneth, rjones, tburke, virt-maint
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	QEMU vlans are not supported and may be removed in future releases.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-07-15 15:16:09 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Michael S. Tsirkin 2010-06-07 14:06:03 UTC

Description of problem: qemu vlans is a legacy way to set up networking
(the new is with -netdev).

There seems to be little need to support
them, enabling vlans leads to user confusion and bad performance.

Comment 1 Markus Armbruster 2010-06-10 08:54:40 UTC

Candiates for disabling include -net, host_net_add, host_net_remove.  

If you want to be thorough, remove qdev property "vlan" (drop it from DEFINE_NIC_PROPERTIES()).

Comment 2 Dor Laor 2010-07-15 15:16:09 UTC

Technical note added. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.

New Contents:
Using qemu vlans is not supported (expect for the internal libguestfs application)

Comment 3 Amit Shah 2010-07-16 07:17:44 UTC

Technical note updated. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.

Diffed Contents:
@@ -1 +1 @@
-Using qemu vlans is not supported (expect for the internal libguestfs application)+Using qemu vlans is not supported (except for the internal libguestfs application) and may be deprecated in future releases.

Comment 4 Markus Armbruster 2010-07-16 11:24:10 UTC

Technical note updated. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.

Diffed Contents:
@@ -1 +1 @@
-Using qemu vlans is not supported (except for the internal libguestfs application) and may be deprecated in future releases.+Using qemu vlans is not supported (except for the internal libguestfs application) and may be removed in future releases.

Comment 5 Markus Armbruster 2010-07-16 11:27:02 UTC

Why mention libguestfs in the technical note?

Comment 6 Richard W.M. Jones 2010-07-16 12:46:45 UTC

I don't think there's any need to mention libguestfs.

Note that the libguestfs we ship in RHEL 6.0 will have a
requirement which should prevent it from being installed
alongside a rebased future qemu RHEL >= 6.1 RPM:

https://bugzilla.redhat.com/show_bug.cgi?id=612309#c5

Comment 7 Markus Armbruster 2010-07-20 12:52:40 UTC

Technical note updated. If any revisions are required, please edit the "Technical Notes" field
accordingly. All revisions will be proofread by the Engineering Content Services team.

Diffed Contents:
@@ -1 +1 @@
-Using qemu vlans is not supported (except for the internal libguestfs application) and may be removed in future releases.+QEMU vlans are not supported and may be removed in future releases.