openstack/neutron
Code Issues Proposed changes

Add OVN mechanism driver to the ML2 config document

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Change-Id: I2ffee0c8dcfd9911681ba5dd0e16b6d3505a9271
This commit is contained in:
Slawek Kaplonski 2021-02-02 23:11:19 +01:00
parent 74342f8d96
commit 0db771dcfe
1 changed files with 36 additions and 1 deletions
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37
doc/source/admin/config-ml2.rst
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@ -51,37 +51,49 @@ ML2 driver support matrix
- VLAN - VLAN
- VXLAN - VXLAN
- GRE - GRE
- Geneve
* - Open vSwitch * - Open vSwitch
- yes - yes
- yes - yes
- yes - yes
- yes - yes
- yes
* - Linux bridge * - Linux bridge
- yes - yes
- yes - yes
- yes - yes
- no - no
- no
* - OVN
- yes
- yes
- yes (requires OVN 20.09+)
- no
- yes
* - SRIOV * - SRIOV
- yes - yes
- yes - yes
- no - no
- no - no
- no
* - MacVTap * - MacVTap
- yes - yes
- yes - yes
- no - no
- no - no
- no
* - L2 population * - L2 population
- no - no
- no - no
- yes - yes
- yes - yes
- yes
.. note:: .. note::
L2 population is a special mechanism driver that optimizes BUM (Broadcast, L2 population is a special mechanism driver that optimizes BUM (Broadcast,
unknown destination address, multicast) traffic in the overlay networks unknown destination address, multicast) traffic in the overlay networks
VXLAN and GRE. It needs to be used in conjunction with either the VXLAN, GRE and Geneve. It needs to be used in conjunction with either the
Linux bridge or the Open vSwitch mechanism driver and cannot be used as Linux bridge or the Open vSwitch mechanism driver and cannot be used as
standalone mechanism driver. For more information, see the standalone mechanism driver. For more information, see the
*Mechanism drivers* section below. *Mechanism drivers* section below.
@ -227,6 +239,14 @@ For more details, see the
agent configuration is required. For details, see the related *L2 agent* agent configuration is required. For details, see the related *L2 agent*
section below. section below.
* OVN
The administrator must configure some additional configuration options for
the mechanism driver. When this driver is used, architecture of the Neutron
application in the cluster is different from what it is with other drivers
like e.g. Open vSwitch or Linuxbridge.
For details, see :ref:`OVN reference architecture<refarch-refarch>`.
* SRIOV * SRIOV
The SRIOV driver accepts all PCI vendor devices. The SRIOV driver accepts all PCI vendor devices.
@ -275,6 +295,9 @@ mechanism driver's ``supported_vnic_types`` list.
* - Linux bridge * - Linux bridge
- normal - normal
- no - no
* - OVN
- normal, direct, direct_macvtap, direct_physical
- no
* - MacVTap * - MacVTap
- macvtap - macvtap
- no - no
@ -442,6 +465,8 @@ implementations:
- Open vSwitch agent - Open vSwitch agent
* - Linux bridge * - Linux bridge
- Linux bridge agent - Linux bridge agent
* - OVN
- No (there is ovn-controller running on nodes)
* - SRIOV * - SRIOV
- SRIOV nic switch agent - SRIOV nic switch agent
* - MacVTap * - MacVTap
@ -470,6 +495,11 @@ non-L2 neutron agents:
- yes - yes
- yes - yes
- yes - yes
* - OVN
- no (own L3 implementation)
- no (DHCP provided by OVN, fully distributed)
- yes (running on compute nodes, fully distributed)
- no
* - SRIOV & SRIOV nic switch agent * - SRIOV & SRIOV nic switch agent
- no - no
- no - no
@ -505,6 +535,11 @@ This guide characterizes the L2 reference implementations that currently exist.
Can be used for instance network attachments as well as for attachments of Can be used for instance network attachments as well as for attachments of
other network resources like routers, DHCP, and so on. other network resources like routers, DHCP, and so on.
* OVN mechanism driver
Can be used for instance network attachments as well as for attachments of
other network resources like routers, metadata ports, and so on.
* SRIOV mechanism driver and SRIOV NIC switch agent * SRIOV mechanism driver and SRIOV NIC switch agent
Can only be used for instance network attachments (device_owner = compute). Can only be used for instance network attachments (device_owner = compute).