首页 > 其他分享 >实验7:基于REST API的SDN北向应用实践

实验7:基于REST API的SDN北向应用实践

时间:2022-11-03 11:34:41浏览次数:72  
标签:__ url REST headers json API SDN type requests

一、基础实验

编写Python程序,调用OpenDaylight的北向接口实现以下功能

(1) 下发指令删除s1上的流表数据。

#!/usr/bin/python
import requests
from requests.auth import HTTPBasicAuth
def http_del(url):
  url= url
  headers = {'Content-Type':'application'}
  resp = requests.delete(url,headers=headers,auth=HTTPBasicAuth('admin', 'admin'))
  return resp 
if __name__ == "__main__":
  url = 'http://127.0.0.1:8181/restconf/config/opendaylight-inventory:nodes/node/openflow:1/'
  resp = http_del(url)
  print (resp.content)

(2) 下发硬超时流表,实现拓扑内主机h1和h3网络中断20s。

#!/usr/bin/python
import requests
from requests.auth import HTTPBasicAuth
def http_hard(url,jstr):
    url= url
    headers = {'Content-Type':'application/json'}
    resp = requests.put(url,jstr,headers=headers,auth=HTTPBasicAuth('admin', 'admin'))
    return resp

if __name__ == "__main__":
    url='http://127.0.0.1:8181/restconf/config/opendaylight-inventory:nodes/node/openflow:1/flow-node-inventory:table/0/flow/1'
    with open('ophard.json') as f:
        jstr = f.read()
    resp = http_hard(url,jstr)
    print (resp.content)

(3) 获取s1上活动的流表数。

编写Python程序,调用Ryu的北向接口实现以下功能

(1)实现上述OpenDaylight实验拓扑上相同的硬超时流表下发。

(2)参考Ryu REST API的文档,基于VLAN实验的网络拓扑,编程实现相同的VLAN配置

#!/usr/bin/python
import json

import requests

if __name__ == "__main__":
    url = 'http://127.0.0.1:8080/stats/flowentry/add'
    headers = {'Content-Type': 'application/json'}
    flow1 = {
        "dpid": 1,
        "priority": 1,
        "match":{
            "in_port": 1
        },
        "actions":[
            {
                "type": "PUSH_VLAN",    
                "ethertype": 33024      
            },
            {
                "type": "SET_FIELD",
                "field": "vlan_vid",    
                "value": 4096           
            },
            {
                "type": "OUTPUT",
                "port": 3
            }
        ]
    }
    flow2 = {
        "dpid": 1,
        "priority": 1,
        "match":{
            "in_port": 2
        },
        "actions":[
            {
                "type": "PUSH_VLAN",     
                "ethertype": 33024      
            },
            {
                "type": "SET_FIELD",
                "field": "vlan_vid",     
                "value": 4097           
            },
            {
                "type": "OUTPUT",
                "port": 3
            }
        ]
    }
    flow3 = {
        "dpid": 1,
        "priority": 1,
        "match":{
            "vlan_vid": 0
        },
        "actions":[
            {
                "type": "POP_VLAN",    
                "ethertype": 33024     
            },
            {
                "type": "OUTPUT",
                "port": 1
            }
        ]
    }
    flow4 = {
        "dpid": 1,
        "priority": 1,
        "match": {
            "vlan_vid": 1
        },
        "actions": [
            {
                "type": "POP_VLAN", 
                "ethertype": 33024  
            },
            {
                "type": "OUTPUT",
                "port": 2
            }
        ]
    }
    flow5 = {
        "dpid": 2,
        "priority": 1,
        "match": {
            "in_port": 1
        },
        "actions": [
            {
                "type": "PUSH_VLAN", 
                "ethertype": 33024 
            },
            {
                "type": "SET_FIELD",
                "field": "vlan_vid", 
                "value": 4096  
            },
            {
                "type": "OUTPUT",
                "port": 3
            }
        ]
    }
    flow6 = {
        "dpid": 2,
        "priority": 1,
        "match": {
            "in_port": 2
        },
        "actions": [
            {
                "type": "PUSH_VLAN",  
                "ethertype": 33024  
            },
            {
                "type": "SET_FIELD",
                "field": "vlan_vid",  
                "value": 4097 
            },
            {
                "type": "OUTPUT",
                "port": 3
            }
        ]
    }
    flow7 = {
        "dpid": 2,
        "priority": 1,
        "match": {
            "vlan_vid": 0
        },
        "actions": [
            {
                "type": "POP_VLAN", 
                "ethertype": 33024  
            },
            {
                "type": "OUTPUT",
                "port": 1
            }
        ]
    }
    flow8 = {
        "dpid": 2,
        "priority": 1,
        "match": {
            "vlan_vid": 1
        },
        "actions": [
            {
                "type": "POP_VLAN", 
                "ethertype": 33024  
            },
            {
                "type": "OUTPUT",
                "port": 2
            }
        ]
    }
    res1 = requests.post(url, json.dumps(flow1), headers=headers)
    res2 = requests.post(url, json.dumps(flow2), headers=headers)
    res3 = requests.post(url, json.dumps(flow3), headers=headers)
    res4 = requests.post(url, json.dumps(flow4), headers=headers)
    res5 = requests.post(url, json.dumps(flow5), headers=headers)
    res6 = requests.post(url, json.dumps(flow6), headers=headers)
    res7 = requests.post(url, json.dumps(flow7), headers=headers)
    res8 = requests.post(url, json.dumps(flow8), headers=headers)

三,实验总结

本次实验主要是查询opendaylight和ryu的url和对应的json,并将url和json写入python程序后实现通过控制器接口对拓扑下发特定的指令来实现指定的功能

标签:__,url,REST,headers,json,API,SDN,type,requests
From: https://www.cnblogs.com/garty/p/16852763.html

相关文章

  • 实验7:基于REST API的SDN北向应用实践
    一、实验目的能够编写程序调用OpenDaylightRESTAPI实现特定网络功能;能够编写程序调用RyuRESTAPI实现特定网络功能。二、实验环境下载虚拟机软件OracleVisualBo......
  • 实验7:基于REST API的SDN北向应用实践
    实验7:基于RESTAPI的SDN北向应用实践一、实验目的能够编写程序调用OpenDaylightRESTAPI实现特定网络功能;能够编写程序调用RyuRESTAPI实现特定网络功能。二、实验环......
  • 实验7:基于REST API的SDN北向应用实践
    一、实验目的能够编写程序调用OpenDaylightRESTAPI实现特定网络功能;能够编写程序调用RyuRESTAPI实现特定网络功能。二、实验环境下载虚拟机软件OracleVisualBo......
  • SDN 基于REST API的SDN北向应用实践
    实验7:基于RESTAPI的SDN北向应用实践一、实验目的1.能够编写程序调用OpenDaylightRESTAPI实现特定网络功能;2.能够编写程序调用RyuRESTAPI实现特定网络功能。二、实......
  • 实验7:基于REST API的SDN北向应用实践
    一、实验目的能够编写程序调用OpenDaylightRESTAPI实现特定网络功能;能够编写程序调用RyuRESTAPI实现特定网络功能。二、实验环境下载虚拟机软件OracleVisualBox或......
  • 实验7:基于REST API的SDN北向应用实践
    (一)基础要求编写Python程序,调用OpenDaylight的北向接口实现以下功能(2)下发指令删除s1上的流表数据。#!/usr/bin/pythonimportrequestsfromrequests.authimpo......
  • 实验7:基于REST API的SDN北向应用实践
    实验7:基于RESTAPI的SDN北向应用实践一、实验目的能够编写程序调用OpenDaylightRESTAPI实现特定网络功能;能够编写程序调用RyuRESTAPI实现特定网络功能。二、实验环......
  • 实验7:基于REST API的SDN北向应用实践
    一.实验目的1.能够编写程序调用OpenDaylightRESTAPI实现特定网络功能2.能够编写程序调用RyuRESTAPI实现特定网络功能。二.实验环境1.下载虚拟机软件Or......
  • 对外提供API,通过appId、appSecret、sign秘钥对接口做鉴权
    一、背景在接口开发过程中,我们通常不能暴露一个接口给第三方随便调用,要对第三方发来参数进行校验,看是不是具有访问权限。名词介绍:1、appId:应用id,用户自定义命名,如:*-ac......
  • 七牛云API的使用包括Ajax上传功能及凭证生成
    1.服务端(主要用于生成上传,删除,下载等凭证)引入Qiniu的Get包。包就叫Qiniu。//上传凭证//上传凭证:其余凭证类似的写法publicstringUpLoadToken()......