ospf6d: documentation for ospf6 GR helper functionality

Description:
	Documentation for ospf6 graceful restart Helper
	functionality. Ref RFC : 5187.

Signed-off-by: Rajesh Girada <rgirada@vmware.com>

diff --git a/doc/user/ospf6d.rst b/doc/user/ospf6d.rst
index 948527d774d183f621b0ef9ac8b9956e3b3765f5..e4f9a67b805db0c3e1a677f17ff513bfc651d4dd 100644 (file)
--- a/doc/user/ospf6d.rst
+++ b/doc/user/ospf6d.rst
@@ -319,6 +319,39 @@ Redistribute routes to OSPF6
    argument injects the default route regardless of it being present in the
    router. Metric values and route-map can also be specified optionally.
 
+Graceful Restart Helper
+=======================
+
+.. clicmd:: graceful-restart helper-only [A.B.C.D]
+
+
+   Configure Graceful Restart (RFC 5187) helper support.
+   By default, helper support is disabled for all neighbours.
+   This config enables/disables helper support on this router
+   for all neighbours.
+   To enable/disable helper support for a specific
+   neighbour, the router-id (A.B.C.D) has to be specified.
+
+.. clicmd:: graceful-restart helper strict-lsa-checking
+
+
+   If 'strict-lsa-checking' is configured then the helper will
+   abort the Graceful Restart when a LSA change occurs which
+   affects the restarting router.
+   By default 'strict-lsa-checking' is enabled"
+
+.. clicmd:: graceful-restart helper supported-grace-time (10-1800)
+
+
+   Supports as HELPER for configured grace period.
+
+.. clicmd:: graceful-restart helper planned-only
+
+
+   It helps to support as HELPER only for planned
+   restarts. By default, it supports both planned and
+   unplanned outages.
+
 .. _showing-ospf6-information:
 
 Showing OSPF6 information
@@ -412,6 +445,19 @@ Showing OSPF6 information
    JSON object, with each router having "cost", "isLeafNode" and "children" as
    arguments.
 
+.. clicmd:: show ipv6 ospf6 graceful-restart helper [detail] [json]
+
+   This command shows the graceful-restart helper details including helper
+   configuration parameters.
+
+Debugging OSPF6
+===============
+
+.. clicmd:: debug ospf6 graceful-restart
+
+   This command enables/disables debug information for ospf6 graceful restart
+   helper functionality.
+
 
 Sample configuration
 ====================