Bug 1472335

Summary: [OVS] mcast-snooping: Flush ports mdb when VLAN configuration changed.
Product: Red Hat OpenStack Reporter: Timothy Redaelli <tredaelli>
Component: openvswitchAssignee: Timothy Redaelli <tredaelli>
Status: CLOSED ERRATA QA Contact: Eran Kuris <ekuris>
Severity: high Docs Contact:
Priority: high    
Version: 10.0 (Newton)CC: aguetta, aloughla, amuller, apevec, atragler, chrisw, fleitner, juyan, qding, rhos-maint, samccann, srevivo, tredaelli
Target Milestone: z4Keywords: Triaged, ZStream
Target Release: 10.0 (Newton)   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: openvswitch-2.6.1-11.git20161206.el7ost Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1456358 Environment:
Last Closed: 2017-09-06 16:59:49 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1456358    
Bug Blocks:    

Description Timothy Redaelli 2017-07-18 13:20:47 UTC 
+++ This bug was initially created as a clone of Bug #1456358 +++

This bugzilla is opened in order to make include the following upstream fix[1] in downstream OVS 2.6.
Description (from github):

If VLAN configuration(e.g. id, mode) change occurs, the IGMP
snooping-learned multicast groups from this port on the VLAN are
deleted. This avoids a MCAST_ENTRY_DEFAULT_IDLE_TIME delay before
mdb is updated again. Hardware switches (e.g. cisco) also do that.

[1] https://github.com/openvswitch/ovs/commit/1c4dfbc7e640f038b6739cda48a7ffeb2924ff5e
Comment 9 Eran Kuris 2017-08-21 11:39:49 UTC 
Fixed verified 

[root@controller-0 ~]# rpm -qa | grep openvswitch-2.6.
python-openvswitch-2.6.1-13.git20161206.el7ost.noarch
openvswitch-2.6.1-13.git20161206.el7ost.x86_64
[root@controller-0 ~]# cat /etc/yum.repos.d/latest-installed 
10   -p 2017-08-18.2

used this guide for generating multicast traffic: 
https://gist.github.com/jayjanssen/5697813
Comment 11 errata-xmlrpc 2017-09-06 16:59:49 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2017:2648