BGP Graceful Restart Support

models/enterprise_sonic/bgp/deleted_example_01.txt

@@ -16,6 +16,9 @@
 #!
 #router bgp 4
 # router-id 10.2.2.4
+# graceful-restart enable
+# graceful-restart restart-time 1
+# graceful-restart stalepath-time 500
 # bestpath as-path ignore
 # bestpath as-path confed
 # bestpath med missing-as-worst confed
@@ -28,6 +31,9 @@
 #        - bgp_as: 4
 #          router_id: 10.2.2.4
 #          log_neighbor_changes: False
+#          graceful_restart:
+#            stale_routes_time: 500
+#            restart_time: 1
 #          bestpath:
 #            as_path:
 #              confed: True
@@ -67,6 +73,7 @@
 # bestpath compare-routerid
 #!
 #router bgp 4
+# graceful-restart enable
 # log-neighbor-changes
 # bestpath compare-routerid
 #!

models/enterprise_sonic/bgp/deleted_example_02.txt

@@ -9,6 +9,7 @@
 # log-neighbor-changes
 #!
 #router bgp 11 vrf VrfCheck2
+# graceful-restart enable
 # log-neighbor-changes
 # bestpath as-path ignore
 # bestpath med missing-as-worst confed

models/enterprise_sonic/bgp/merged_example_01.txt

@@ -14,6 +14,9 @@
 #        - bgp_as: 4
 #          router_id: 10.2.2.4
 #          log_neighbor_changes: False
+#          graceful_restart:
+#            enabled: True
+#            preserve_fw_state: True
 #          bestpath:
 #            as_path:
 #              confed: True
@@ -58,6 +61,8 @@
 #!
 #router bgp 4
 # router-id 10.2.2.4
+# graceful-restart enable
+# graceful-restart preserve-fw-state
 # bestpath as-path ignore
 # bestpath as-path confed
 # bestpath med missing-as-worst confed

models/enterprise_sonic/bgp/sonic_bgp.yaml

@@ -46,6 +46,29 @@ DOCUMENTATION: |
           description:
             - Enable/disable logging neighbor up/down and reset reason.
           type: bool
+        graceful_restart:
+          description:
+            - Configure graceful restart
+          type: dict
+          suboptions:
+            enabled:
+              description:
+                - Enable graceful restart
+              type: bool
+            restart_time:
+              description:
+                - Configures restart-time.
+                - The range is from 1 to 3600.
+              type: int
+            stale_routes_time:
+              description:
+                - Configures stale-routes-time
+                - The range is from 1 to 3600.
+              type: int
+            preserve_fw_state:
+              description:
+                - Configures preserve-fw-state
+              type: bool
         bestpath:
           description:
             - Configures the BGP bestpath.