+
+ @staticmethod
+ def vpp_add_graph_node_next(node, graph_node_name, graph_next_name):
+ """Set the next node for a given node.
+
+ :param node: Node to run command on.
+ :param graph_node_name: Graph node to add the next node on.
+ :param graph_next_name: Graph node to add as the next node.
+ :type node: dict
+ :type graph_node_name: str
+ :type graph_next_name: str
+ :returns: The index of the next graph node.
+ :rtype: int
+ """
+ cmd = u"add_node_next"
+ args = dict(
+ node_name=graph_node_name,
+ next_name=graph_next_name
+ )
+ with PapiSocketExecutor(node) as papi_exec:
+ reply = papi_exec.add(cmd, **args).get_reply()
+
+ return reply[u"next_index"]
+
+ @staticmethod
+ def vpp_set_neighbor_limit_on_all_duts(nodes, count):
+ """VPP set neighbor count limit on all DUTs in the given topology.
+
+ :param nodes: Nodes in the topology.
+ :param count: Neighbor count need to set.
+ :type nodes: dict
+ :type count: int
+ """
+ for node in nodes.values():
+ if node[u"type"] == NodeType.DUT:
+ cmd = f"set ip neighbor-config ip4 limit {count}"
+ PapiSocketExecutor.run_cli_cmd(node, cmd)
+
+ cmd = f"set ip neighbor-config ip6 limit {count}"
+ PapiSocketExecutor.run_cli_cmd(node, cmd)