RHBA-2016:2009 - Bug Fix Advisory

Topic

Updated OpenStack Networking packages that resolve various issues are now
available for Red Hat OpenStack Platform 9.0 (Mitaka) for RHEL 7.

Description

Red Hat OpenStack Platform provides the facilities for building a private
or public infrastructure-as-a-service (IaaS) cloud running on commonly
available physical hardware. This advisory includes packages for:

• OpenStack Networking service

OpenStack Networking (neutron) is a virtual network service for OpenStack.
Just as OpenStack Compute (nova) provides an API to dynamically request and
configure virtual servers, OpenStack Networking provides an API to
dynamically request and configure virtual networks. These networks connect
'interfaces' from other OpenStack services (e.g. virtual NICs from Compute
VMs). The OpenStack Networking API supports extensions to provide advanced
network capabilities (e.g. QoS, ACLs, network monitoring, etc.)

This update addresses the following issue:

• Prior to this update, the `Fail` mode on OVS physical bridges was not set, defaulting to `standalone`. However, this meant that when `ofctl_interface` was set to `native`, and the interface became unavailable (due to heavy load, OVS agent shutdown, network disruption), the flows on physical bridges could be cleared.

Consequently, the physical bridge traffic was disrupted. With this update, the OVS physical bridge fail mode has been set to `secure`. As a result, flows are retained on physical bridges. (BZ#1372369)

Solution

Before applying this update, ensure all previously released errata relevant
to your system have been applied.

Red Hat OpenStack Platform 9 runs on Red Hat Enterprise Linux 7.2.

The Red Hat OpenStack Platform 9 Release Notes contain the following:

• An explanation of the way in which the provided components interact to

form a working cloud computing environment.

• Technology Previews, Recommended Practices, and Known Issues.
• The channels required for Red Hat OpenStack Platform 9, including which

channels need to be enabled and disabled.

The Release Notes are available at:
https://access.redhat.com/documentation/en/red-hat-openstack-platform/9/single/release-notes/

This update is available through 'yum update' on systems registered through
Red Hat Subscription Manager. For more information about Red Hat
Subscription Manager, see:

https://access.redhat.com/documentation/en-US/Red_Hat_Subscription_Management/1/html/RHSM/index.html

Affected Products

• Red Hat OpenStack 9 x86_64

Fixes

• BZ - 1372369 - Backport to mitaka: Set secure fail mode for physical bridges

CVEs

(none)

References

(none)