added config bgp examples, and example yang

Author: kkumara3

examples/grpc_cfg.py

@@ -0,0 +1,59 @@
+'''
+Note:
+This is an example to show replace and merge configs work with a get command.
+The example is using XRdocs vagrant topology for all the configurations
+'''
+
+import sys
+sys.path.insert(0, '../')
+from lib.cisco_grpc_client import CiscoGRPCClient
+import json
+from time import sleep
+
+class Example:
+    def __init__(self):
+        self.client = CiscoGRPCClient('11.1.1.10', 57777, 10, 'vagrant', 'vagrant')
+    def get(self):
+        path = '{"Cisco-IOS-XR-ipv4-bgp-cfg:bgp": [null]}'
+        result = self.client.getconfig(path)
+        print result
+
+    def replace(self):
+        path = open('snips/bgp_start.json').read()
+        result = self.client.replaceconfig(path)
+        print result # If this is sucessful, then there should be no errors.
+
+    def merge(self):
+        path = open('snips/bgp_merge.json').read()
+        result = self.client.mergeconfig(path)
+        print result # If this is sucessful, then there should be no errors.
+
+    def delete(self):
+        path = open('snips/bgp_start.json').read()
+        result = self.client.deleteconfig(path)
+        print result # If this is sucessful, then there should be no errors.
+
+def main():
+    '''
+    This example does not use TLS, if you want to use TLS please refer to the example with tls
+    Here is a workflow of the example that uses all the different types.
+    '''
+    example = Example()
+    #We are going to start with a replace config, to add a base BGP config
+    example.replace()
+    #Lets see what the bgp is on the router to ensure the the config got placed in there. \n'
+    #This config should be the same as the starting snip\n'
+    example.get()
+    #Let us use merge to add another neighbor.
+    example.merge()
+    #The resulting config should be the first config plus the second
+    example.get()
+    #If we were to replace the config wtih the starting config we would see only the starting config
+    example.replace()
+    example.get()
+    #If we were to delete the config using the starting json, we would see that bgp is no longer active.
+    example.delete()
+    example.get()
+
+if __name__ == '__main__':
+    main()

examples/snips/bgp_merge.json

@@ -0,0 +1,70 @@
+{
+ "Cisco-IOS-XR-ipv4-bgp-cfg:bgp": {
+  "instance": [
+   {
+    "instance-name": "default",
+    "instance-as": [
+     {
+      "as": 0,
+      "four-byte-as": [
+       {
+        "as": 65400,
+        "bgp-running": [
+         null
+        ],
+        "default-vrf": {
+         "global": {
+          "router-id": "11.1.1.10",
+          "global-afs": {
+           "global-af": [
+            {
+             "af-name": "ipv4-unicast",
+             "enable": [
+              null
+             ],
+             "sourced-networks": {
+              "sourced-network": [
+               {
+                "network-addr": "11.1.1.0",
+                "network-prefix": 24
+               }
+              ]
+             }
+            }
+           ]
+          }
+         },
+         "bgp-entity": {
+          "neighbors": {
+           "neighbor": [
+            {
+             "neighbor-address": "11.1.1.60",
+             "remote-as": {
+              "as-xx": 0,
+              "as-yy": 65460
+             },
+             "neighbor-afs": {
+              "neighbor-af": [
+               {
+                "af-name": "ipv4-unicast",
+                "activate": [
+                 null
+                ],
+                "next-hop-self": true
+               }
+              ]
+             }
+            }
+           ]
+          }
+         }
+        }
+       }
+      ]
+     }
+    ]
+   }
+  ]
+ }
+}
+

examples/snips/bgp_start.json

@@ -0,0 +1,70 @@
+{
+ "Cisco-IOS-XR-ipv4-bgp-cfg:bgp": {
+  "instance": [
+   {
+    "instance-name": "default",
+    "instance-as": [
+     {
+      "as": 0,
+      "four-byte-as": [
+       {
+        "as": 65400,
+        "bgp-running": [
+         null
+        ],
+        "default-vrf": {
+         "global": {
+          "router-id": "11.1.1.10",
+          "global-afs": {
+           "global-af": [
+            {
+             "af-name": "ipv4-unicast",
+             "enable": [
+              null
+             ],
+             "sourced-networks": {
+              "sourced-network": [
+               {
+                "network-addr": "11.1.1.0",
+                "network-prefix": 24
+               }
+              ]
+             }
+            }
+           ]
+          }
+         },
+         "bgp-entity": {
+          "neighbors": {
+           "neighbor": [
+            {
+             "neighbor-address": "11.1.1.20",
+             "remote-as": {
+              "as-xx": 0,
+              "as-yy": 65450
+             },
+             "neighbor-afs": {
+              "neighbor-af": [
+               {
+                "af-name": "ipv4-unicast",
+                "activate": [
+                 null
+                ],
+                "next-hop-self": true
+               }
+              ]
+             }
+            }
+           ]
+          }
+         }
+        }
+       }
+      ]
+     }
+    ]
+   }
+  ]
+ }
+}
+