Support to reset all console connections. Ref https://github.com/GNS3/gns3-server/issues/1619

gns3server/controller/node.py

@@ -539,6 +539,17 @@ class Node:
         except asyncio.TimeoutError:
             raise aiohttp.web.HTTPRequestTimeout(text="Timeout when reloading {}".format(self._name))
 
+    async def reset_console(self):
+        """
+        Reset the console
+        """
+
+        if self._console and self._console_type == "telnet":
+            try:
+                await self.post("/console/reset", timeout=240)
+            except asyncio.TimeoutError:
+                raise aiohttp.web.HTTPRequestTimeout(text="Timeout when reset console {}".format(self._name))
+
     async def post(self, path, data=None, **kwargs):
         """
         HTTP post on the node

gns3server/controller/project.py

@@ -1124,6 +1124,17 @@ class Project:
             pool.append(node.suspend)
         await pool.join()
 
+    @open_required
+    async def reset_console_all(self):
+        """
+        Reset console for all nodes
+        """
+
+        pool = Pool(concurrency=3)
+        for node in self.nodes.values():
+            pool.append(node.reset_console)
+        await pool.join()
+
     @open_required
     async def duplicate_node(self, node, x, y, z):
         """