Signed-off-by: Lorenzo Bianconi <[email protected]>
---
ovn-nb.xml | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/ovn-nb.xml b/ovn-nb.xml
index 58083f101..76c3a3d86 100644
--- a/ovn-nb.xml
+++ b/ovn-nb.xml
@@ -129,10 +129,11 @@
options are described individually below.
</column>
- <group title="Options for configuring BFD">
+ <group title="Options for configuring OVS BFD">
<p>
These options apply when <code>ovn-controller</code> configures
- BFD on tunnels interfaces.
+ OVS BFD on tunnels interfaces. Please note these parameters refer
+ to legacy OVS BFD implementation and not to OVN BFD one.
</p>
<column name="options" key="bfd-min-rx">
@@ -2281,11 +2282,10 @@
<p>
When more than one gateway chassis is specified, OVN only uses
- one at a time. OVN uses BFD to monitor gateway connectivity,
- preferring the highest-priority gateway that is online.
- Priorities are specified in the <code>priority</code> column
- of <ref table="Gateway_Chassis"/> or <ref
- table="HA_Chassis"/>.
+ one at a time. OVN can rely on OVS BFD implementation to monitor
+ gateway connectivity, preferring the highest-priority gateway
+ that is online. Priorities are specified in the <code>priority</code>
+ column of <ref table="Gateway_Chassis"/> or <ref table="HA_Chassis"/>.
</p>
<p>
@@ -3759,7 +3759,14 @@
<table name="BFD">
<p>
- Contains BFD parameter for ovn-controller bfd configuration.
+ Contains BFD parameter for ovn-controller BFD configuration.
+ OVN BFD implementation is used to provide detection of failures in the
+ path between adjacent forwarding engines, including the OVN interfaces.
+ OVN BFD provides link status info to OVN northd in order to update
+ logical flows according to the status of BFD endpoints. In the current
+ implementation OVN BFD is used to check next-hop status for ECMP routes.
+ Please note BFD table refers to OVN BFD implementation and not to OVS
+ legacy one.
</p>
<group title="Configuration">
--
2.29.2
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