Add supportability matrix
Add initial information about the different options supported by the different drivers Change-Id: I9c49ae7d125cec90725943eeda01a5849070b11a
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Luis Tomas Bolivar
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042016d3d7
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doc/source/contributor/bgp_supportability_matrix.rst
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doc/source/contributor/bgp_supportability_matrix.rst
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..
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This work is licensed under a Creative Commons Attribution 3.0 Unported
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License.
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http://creativecommons.org/licenses/by/3.0/legalcode
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Convention for heading levels in Neutron devref:
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======= Heading 0 (reserved for the title in a document)
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------- Heading 1
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~~~~~~~ Heading 2
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+++++++ Heading 3
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''''''' Heading 4
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(Avoid deeper levels because they do not render well.)
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=========================
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BGP Supportability Matrix
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=========================
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The next sections highlight the options and features supported by each driver
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BGP Driver (SB)
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---------------
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+--------------------------+--------------------+-----------------------+-------------+
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| Exposing Method | Description | Expose with | Wired with | Expose Tenants | Expose only GUA | OVS-DPDK/HWOL Support | Implemented |
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+=================+=====================================================+==========================================+==========================================+==========================+====================+=======================+=============+
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| Underlay | Expose IPs on the default underlay network | Adding IP to dummy nic isolated in a VRF | Ingress: ip rules, and ip routes on the | Yes | Yes | No | Yes |
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| | | | routing table associated with OVS | | (expose_ipv6_gua | | |
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| | | | Egress: OVS flow to change MAC | (expose_tenant_networks) | _tenant_networks) | | |
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+--------------------------+--------------------+-----------------------+-------------+
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BGP Driver (NB)
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---------------
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Note until RFE on OVN (https://bugzilla.redhat.com/show_bug.cgi?id=2107515)
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is implemented there is no option to expose tenant networks as we do not know
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where the CR-LRP port is associated to.
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+--------------------------+-----------------------+-------------+
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| Exposing Method | Description | Expose with | Wired with | Expose Tenants or GUA | OVS-DPDK/HWOL Support | Implemented |
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+=================+=====================================================+==========================================+==========================================+==========================+=======================+=============+
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| Underlay | Expose IPs on the default underlay network | Adding IP to dummy nic isolated in a VRF | Ingress: ip rules, and ip routes on the | No support until OVN | No | Yes |
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| | | | routing table associated to ovs | has information about | | |
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| | | | Egress: ovs-flow to change mac | the CR-LRP chassis on | | |
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+ the SB DB +-----------------------+-------------+
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| L2VNI | Extends the L2 segment on a given VNI | No need to expose it, automatic with the | Ingress: vxlan + bridge device | | No | No |
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| | | FRR configuration and the wiring | Egress: nothing | | | |
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+ +-----------------------+-------------+
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| VRF | Expose IPs on a given VRF (vni id) | Add IPs to dummy nic associated to the | Ingress: vxlan + bridge device | | No | No |
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| | | VRF device (lo_VNI_ID) | Egress: flow to redirect to VRF device | | | |
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+ +-----------------------+-------------+
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| Dynamic | Mix of the previous, depending on annotations it | Mix of the previous three | Ingress: mix of all the above | | No | No |
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| | exposes it differently and on different VNIs | | Egress: mix of all the above | | | |
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+ +-----------------------+-------------+
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| OVN-Cluster | Make use of an extra OVN cluster (per node) instead | Adding IP to dummy nic isolated in a VRF | Ingress: ovn routes, ovs flow (mac tweak)| | Yes | No |
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| | of kernel routing -- exposing the IPs with BGP is | (as it only supports the underlay option)| Egress: ovn routes and policies, | | | |
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| | the same as before | | and ovs flow (mac tweak) | | | |
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+--------------------------+-----------------------+-------------+
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BGP Stretched Driver (SB)
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-------------------------
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+----------------+--------------------+-----------------------+-------------+
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| Exposing Method | Description | Expose with | Wired with | Expose Tenants | Expose only GUA | OVS-DPDK/HWOL Support | Implemented |
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+=================+=====================================================+==========================================+==========================================+================+====================+=======================+=============+
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| Underlay | Expose IPs on the default underlay network | Adding IP routes to default VRF table | Ingress: ip rules, and ip routes on the | Yes | No | No | Yes |
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| | | | routing table associated to ovs | | | | |
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| | | | Egress: ovs-flow to change mac | | | | |
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+----------------+--------------------+-----------------------+-------------+
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EVPN Driver (SB)
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----------------
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+----------------+--------------------+-----------------------+-------------+
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| Exposing Method | Description | Expose with | Wired with | Expose Tenants | Expose only GUA | OVS-DPDK/HWOL Support | Implemented |
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+=================+=====================================================+==========================================+==========================================+================+====================+=======================+=============+
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| VRF | Expose IPs on a given VRF (vni id) -- requires | Add IPs to dummy nic associated to the | Ingress: vxlan + bridge device | Yes | No | No | No |
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| | newtorking-bgpvpn or manual NB DB inputs | VRF device (lo_VNI_ID) | Egress: flow to redirect to VRF device | | | | |
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+-----------------+-----------------------------------------------------+------------------------------------------+------------------------------------------+----------------+--------------------+-----------------------+-------------+
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@ -8,4 +8,4 @@
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bgp_mode_design
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evpn_mode_design
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bgp_mode_stretched_l2_design
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bgp_supportability_matrix
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@ -39,6 +39,8 @@ agent_opts = [
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default=False),
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cfg.StrOpt('driver',
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help='Driver to be used',
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choices=('ovn_bgp_driver', 'ovn_evpn_driver',
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'ovn_stretched_l2_bgp_driver', 'nb_ovn_bgp_driver'),
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default='ovn_bgp_driver'),
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cfg.StrOpt('ovsdb_connection',
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default='unix:/usr/local/var/run/openvswitch/db.sock',
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@ -118,6 +120,22 @@ agent_opts = [
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help='Allows to filter on the address scope. Only networks'
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' with the same address scope on the provider and'
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' internal interface are announced.'),
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cfg.StrOpt('exposing_method',
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default='underlay',
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choices=('underlay', 'l2vni', 'vrf', 'dynamic', 'ovn'),
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help='The exposing mechanism to be used. underlay is the '
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'default and simply expose it on the default/plain '
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'network.'
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'With l2vni the l2 is extended over the l3 infrastructure '
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'and it is exposed on a given VNI (Type-2).'
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'With vrf the routes are exposed in different VRFs/VNIs '
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'(Type-5).'
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'With dynamic, a mix between underlay, l2vni and vrf is '
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'used, depending on the information annotated on the '
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'ports. '
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'Finally, with ovn, instead of using kernel networking a '
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'dedicated ovn cluster per node is used for the traffic '
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'redirection'),
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]
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root_helper_opts = [
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