Installation¶

Networking-bagpipe installation¶

The details related to how a package should be installed may depend on your environment.

If possible, you should rely on packages provided by your Linux and/or OpenStack distribution.

If you use pip, follow these steps to install networking-bagpipe:

identify the version of the networking-bagpipe package that matches your Openstack version:
- Liberty: most recent of 3.0.x
- Mitaka: most recent of 4.0.x
- Newton: most recent of 5.0.x
- Ocata: most recent of 6.0.x
- Pike: most recent of 7.0.x
- Queens: most recent of 8.0.x
- (see https://releases.openstack.org/index.html)
indicate pip to (a) install precisely this version and (b) take into account Openstack upper constraints on package versions for dependencies (example for Queens):
```
$ pip install -c  https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=stable/queens networking-bagpipe=8.0.0
```

BaGPipe for Neutron L2¶

Installation in a devstack test/development environment¶

install devstack (whether stable/x or master)

enable the devstack plugin by adding this to local.conf:

to use branch stable/x (e.g. stable/queens):

enable_plugin networking-bagpipe https://git.openstack.org/openstack/networking-bagpipe.git stable/X

to use the development branch:

enable_plugin networking-bagpipe https://git.openstack.org/openstack/networking-bagpipe.git master

enable bagpipe ML2 by adding this to local.conf:
```
ENABLE_BAGPIPE_L2=True
```
for multinode setups, configure BaGPipe-BGP on each compute node, i.e. you need each BaGPipe-BGP to peer with a BGP Route Reflector:
- in local.conf:
```
# IP of your route reflector or BGP router, or fakeRR:
BAGPIPE_BGP_PEERS=1.2.3.4
```
- for two compute nodes, you can use the FakeRR provided in BaGPipe-BGP
- for more than two compute nodes, you can use GoBGP (sample configuration) or a commercial E-VPN implementation (e.g. vendors participating in EANTC interop testing on E-VPN)

Deployment¶

On Neutron servers, the following needs to be done, based on an ML2/linuxbridge or ML2/openvswitch configuration as a starting point:

installing networking-bagpipe python package (see Networking-bagpipe installation)
in ML2 configuration (/etc/neutron/plugins/ml2.ini):
- adding the bagpipe mechanism driver (additionally to the linuxbridge or openvswitch driver which will still handle flat and vlan networks)
- before Queens release (i.e. if networking-bagpipe < 8) use the route_target type driver as default
- result:
```
[ml2]
# tenant_network_types = route_target  # before queens only!
mechanism_drivers = openvswitch,linuxbridge,bagpipe
```

You need to deploy a BGP Route Reflector, that will distribute BGP VPN routes among compute and network nodes. This route reflector will need to support E-VPN and, optionally, RT Constraints. One option, among others is to use GoBGP (sample configuration).

On compute node (and network nodes if any) the following needs to be done, based on an ML2/linuxbridge or ML2/openvswitch configuration as a starting point:

installing networking-bagpipe python package (see Networking-bagpipe installation)
configuring Neutron linuxbridge or OpenvSwitch agent for bagpipe /etc/neutron/plugins/ml2.ini:
- enabling bagpipe agent extension
- before Queens release (i.e. if networking-bagpipe < 8), disable VXLAN:
- configuring the AS number and range to use to allocate BGP Route Targets for tenant networks
- result:
```
[agent]
extensions = bagpipe

[vxlan]
# for a release strictly before OpenStack Queens (networking-bagpipe < 8)
# enable_vxlan = False

[ml2_bagpipe_extension]
as_number = 64512
```
configuring BaGPipe-BGP:
- setting local_address to the compute node address (or the name of one of its interfaces e.g. ‘eth0’)
- adding the Route Reflector IP to peers
- selecting the EVPN dataplane driver corresponding to your agent in (/etc/bagpipe-bgp/bgp.conf):
  - ovs for the openvswitch agent:
```
[DATAPLANE_DRIVER_EVPN]
dataplane_driver = ovs
```
  - linux for the linuxbridge agent:
```
[DATAPLANE_DRIVER_EVPN]
dataplane_driver = linux
```

BaGPipe for BGPVPN¶

Information on how to use bagpipe driver for networking-bgpvpn is provided in BGPVPN bagpipe driver documentation.

BaGPipe for networking-sfc¶

To enable the use of networking-bagpipe driver for networking-sfc, the following needs to be done:

enable bagpipe driver for the networking-sfc service plugin, in /etc/neutron/neutron.conf and configure its parameters (see SFC):
[sfc] drivers = bagpipe [sfc_bagpipe] # examples, of course! as_number = 64517 rtnn = 10000,30000
add the bagpipe_sfc agent extension to the Neutron linuxbridge agent config in``/etc/neutron/plugins/ml2.ini``:
[agent] extensions = bagpipe_sfc
BaGPipe-BGP lightweight BGP VPN implementation, configured to use ovs as dataplane driver for IPVPNs, and linux as dataplane driver for EVPN (/etc/bagpipe-bgp/bgp.conf):
[DATAPLANE_DRIVER_IPVPN] dataplane_driver = ovs [DATAPLANE_DRIVER_EVPN] dataplane_driver = linux

In a devstack¶

To experiment with sfc driver in a devstack, the following is can be added in your local.conf (replace stable/X with stable/queens for e.g. Openstack Queens release) :

enable_plugin networking-sfc https://git.openstack.org/openstack/networking-bagpipe.git
# enable_plugin networking-sfc https://git.openstack.org/openstack/networking-bagpipe.git stable/X
enable_plugin networking-bagpipe https://git.openstack.org/openstack/networking-bagpipe.git
# enable_plugin networking-bagpipe https://git.openstack.org/openstack/networking-bagpipe.git stable/X

BAGPIPE_DATAPLANE_DRIVER_EVPN=linux
BAGPIPE_DATAPLANE_DRIVER_IPVPN=ovs

[[post-config|$NEUTRON_CONF]]

[sfc]
drivers = bagpipe

[sfc_bagpipe]
as_number = 64517
rtnn = 10000,30000


[[post-config|/$NEUTRON_CORE_PLUGIN_CONF]]

[agent]
extensions = bagpipe_sfc

Installation