[ovs-dev] [PATCH 2/5] ovn-architecture: Correct documentation of localnet ports.
Ben Pfaff
blp at ovn.org
Fri Mar 13 22:32:24 UTC 2020
Their LSes can have multiple additional LSPs, not just one.
Suggested-by: Han Zhou <hzhou at ovn.org>
Signed-off-by: Ben Pfaff <blp at ovn.org>
---
ovn-architecture.7.xml | 29 ++++++++++++++++++++---------
1 file changed, 20 insertions(+), 9 deletions(-)
diff --git a/ovn-architecture.7.xml b/ovn-architecture.7.xml
index 415c895e497f..3e1bb7237b2a 100644
--- a/ovn-architecture.7.xml
+++ b/ovn-architecture.7.xml
@@ -441,17 +441,28 @@
<p>
A <code>localnet</code> logical switch port bridges a logical switch to a
- physical VLAN. A logical switch with a <code>localnet</code> LSP should
- have only one other LSP. Some kinds of gateways (see <code>Gateways</code>
- below) use a logical switch with a router port as the second LSP. On the
- other hand, when the second LSP is a VIF, the logical switch is not really
- a logical network, since it is bridged to the physical network rather than
- insulated from it, and therefore cannot have independent but overlapping IP
- address namespaces, etc. (A deployment might nevertheless choose such a
- configuration to take advantage of the OVN control plane and features such
- as port security and ACLs.)
+ physical VLAN. Any given logical switch should have no more than one
+ <code>localnet</code> port. Such a logical switch is used in two
+ scenarios:
</p>
+ <ul>
+ <li>
+ With one or more <code>router</code> logical switch ports, to attach L3
+ gateway routers and distributed gateways to a physical network.
+ </li>
+
+ <li>
+ With one or more VIF logical switch ports, to attach VMs or containers
+ directly to a physical network. In this case, the logical switch is not
+ really logical, since it is bridged to the physical network rather than
+ insulated from it, and therefore cannot have independent but overlapping
+ IP address namespaces, etc. A deployment might nevertheless choose such
+ a configuration to take advantage of the OVN control plane and features
+ such as port security and ACLs.
+ </li>
+ </ul>
+
<p>
A <code>localport</code> logical switch port is a special kind of VIF
logical switch port. These ports are present in every chassis, not bound
--
2.24.1
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