From ee2c84b2f0cc13d71122bd2ee0640bb13aa8040e Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Sun, 12 Dec 2021 10:06:17 +0100
Subject: bgp: T4069: add "parameters fast-convergence" CLI option

Whenever BGP peer address becomes unreachable we must bring down the BGP
session immediately. Currently only single-hop EBGP sessions are brought down
immediately. IBGP and multi-hop EBGP sessions wait for hold-timer expiry to
bring down the sessions.

This new configuration option helps user to teardown BGP sessions immediately
whenever peer becomes unreachable.

This configuration is available at the bgp level. When enabled, configuration
is applied to all the neighbors configured in that bgp instance.
---
 interface-definitions/include/bgp/protocol-common-config.xml.i | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'interface-definitions/include')

diff --git a/interface-definitions/include/bgp/protocol-common-config.xml.i b/interface-definitions/include/bgp/protocol-common-config.xml.i
index 351ee8eda..5dd4e522b 100644
--- a/interface-definitions/include/bgp/protocol-common-config.xml.i
+++ b/interface-definitions/include/bgp/protocol-common-config.xml.i
@@ -1363,6 +1363,12 @@
         <valueless/>
       </properties>
     </leafNode>
+    <leafNode name="fast-convergence">
+      <properties>
+        <help>Teardown sessions immediately whenever peer becomes unreachable</help>
+        <valueless/>
+      </properties>
+    </leafNode>
     <node name="graceful-restart">
       <properties>
         <help>Graceful restart capability parameters</help>
-- 
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