Bug 36340

Summary:	Bonding configuration generates wrong miimon configuration
Product:	UCS	Reporter:	Stefan Gohmann <gohmann>
Component:	UMC - Basic settings	Assignee:	Florian Best <best>
Status:	CLOSED FIXED	QA Contact:	Philipp Hahn <hahn>
Severity:	critical
Priority:	P5	CC:	gohmann, jmm, meybohm, stephan.hendl
Version:	UCS 4.0
Target Milestone:	UCS 4.0-0-errata
Hardware:	Other
OS:	Linux
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Bug Depends on:	36339
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Description Stefan Gohmann

2014-10-29 15:52:54 CET

I guess it needs to be fixed for UCS 4.0 as well.

+++ This bug was initially created as a clone of Bug #36339 +++

2014102821000257

The UMC module does not set MII link monitoring frequency correctly:

interfaces/bond0/options/2: miimon 100

should be:

interfaces/bond0/options/2: bond-miimon 100

Therefore, in bond-modes like active-backup, the active slave is _never_ switched so the network is down when the active slave goes down!


A fix should also correct all broken configurations in UCR.

Workaround:
1) Set "bond-miimon <Frequency in milliseconds>" manually via "Additional bonding options" in UMC wizard.
BUT: this would need to be manually removed when this bug is fixed because ifup complains about duplicate options

/etc/network/interfaces:39: duplicate option
ifup: couldn't read interfaces file "/etc/network/interfaces"


2) Correct UCR manually:
ucr search --brief --non-empty '^interfaces/.*/options/' | \
  sed -rne 's,(interfaces/.*/options/.*): (miimon .*)$,\1=bond-\2,p' | \
  xargs -d '\n' --no-run-if-empty ucr set

BUT: Re-running the UMC wizard for that interface will again break the configuration!

Comment 1 Florian Best

2014-11-21 16:56:31 CET

YAML: 2014-11-21-univention-system-setup.yaml

Comment 2 Philipp Hahn

2014-11-27 18:44:48 CET

OK: r56050
OK: aptitude install '?source-package(univention-system-setup)?installed'
OK: bond-miimon 101
OK: cat /sys/class/net/bond0/bonding/miimon
OK: 2014-11-21-univention-system-setup.yaml

Comment 3 Moritz Muehlenhoff

2014-12-04 12:22:16 CET

http://errata.univention.de/ucs/4.0/2.html