Open vSwitch and persistent MAC addresses
Normally I like to post solutions, but today's post is about a vexing problem to which I have not been able to find a solution.
This started as a simple attempt to set up external connectivity on
an all-in-one Icehouse install deployed on an OpenStack instance. I
wanted to add
br-ex in order to model a typical method for
providing external connectivity, but I ran into a very odd problem:
the system would boot and work fine for a few seconds, but would then
promptly lose network connectivity.
Solved: Open vSwitch and persistent MAC addresses
Fedora and OVS Bridge Interfaces
I run OpenStack on my laptop, and I've been chasing down a pernicious
problem with OVS bridge interfaces under both F19 and F20. My
OpenStack environment relies on an OVS bridge device named
external connectivity and for making services available to OpenStack
instances, but after rebooting,
br-ex was …
Firewalld, NetworkManager, and OpenStack
By default, NetworkManager attempts to start a DHCP client on every new available interface. Since booting a single instance in OpenStack can result in the creation of several virtual interfaces, this results in a lot of …read more
Flat networks with ML2 and OpenVSwitch
Due to an unfortunate incident involving sleep mode and an overheated backpack I had the "opportunity" to rebuild my laptop. Since this meant reinstalling OpenStack I used this as an excuse to finally move to the ML2 network plugin for Neutron.
I was attempting to add an external network using …read more