Bug 1097312 - [Docs] Bonding modes 0, 5 and 6 should not be used for VM networks
Summary: [Docs] Bonding modes 0, 5 and 6 should not be used for VM networks
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Virtualization Manager
Classification: Red Hat
Component: Documentation
Version: 3.5.0
Hardware: All
OS: Linux
high
high
Target Milestone: ---
: 3.5.0
Assignee: Julie
QA Contact: Lucy Bopf
URL:
Whiteboard: network
Depends On: 1097330
Blocks: 1002699 1097143 1240859 1264029
TreeView+ depends on / blocked
 
Reported: 2014-05-13 14:33 UTC by Marina Kalinin
Modified: 2019-04-28 10:47 UTC (History)
22 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of: 1094842
Environment:
Last Closed: 2014-08-31 23:27:59 UTC
oVirt Team: Network
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Knowledge Base (Solution) 67546 0 None None None Never

Internal Links: 1094842

Description Marina Kalinin 2014-05-13 14:33:10 UTC
Please update RHEV documentation accordingly, ASAP.
Right now this is discussed on the Technical Reference guide, under Networking section.

+++ This bug was initially created as a clone of Bug #1094842 +++

+++ This bug was initially created as a clone of Bug #928124 +++

--- comment from Jiri Pirko on 2014-05-06:

Do not use tlb or alb in bridge, never! It does not work, that's it. The reason is it mangles source macs in xmit frames and arps. When it is possible, just use mode 4 (lacp). That should be always possible because all enterprise switches support that. Generally, for 99% of use cases, you *should* use mode 4. There is no reason to use other modes.

----

I.E.: Engine should not allow to attach a VM network to an existing mode5/mode6 bond, and should not allow to create such a bond under a VM network.

--- Additional comment from Jamie Bainbridge on 2014-05-06 17:58:51 EDT ---

Finally!

--- Additional comment from Jamie Bainbridge on 2014-05-06 18:16:20 EDT ---

Comment 1 Sadique Puthen 2014-05-14 06:48:42 UTC
Not just bonding modes. We need to update our document to include below points as well.

1 - Mode 1 will not work if nics are connected to two different switches if they are not stacked. Ref #1094398. Sent an email already to prio-list and Nir. Waiting for his approval to include this in doc.

2 - Only miimon will work for failover of bond for vm networks. arp_validate with arp_ip_target will not work. Ref bug #704190

Comment 2 Dan Kenigsberg 2014-05-21 11:27:54 UTC
when documenting, please do not say "will not work", but rather explain what fails and why. Some customers may find disconnected switches as useful.


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