一、實驗目的

二、實驗任務

三、實驗步驟

1. 實驗環境

2. 實驗過程

#!/usr/bin/python
import requests
from requests.auth import HTTPBasicAuth
def http_put(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('hardtimeout.json') as f:
        jstr = f.read()
     resp = http_put(url,jstr)
    print resp.content

{
    "flow": [
         {
             "id": "1",
             "match": {
                 "in-port": "1",
                 "ethernet-match": {
                     "ethernet-type": {
                         "type": "0x0800"
                     }
                 },
                 "ipv4-destination": "10.0.0.3/32"
             },
             "instructions": {
                 "instruction": [
                     {
                         "order": "0",
                         "apply-actions": {
                             "action": [
                                 {
                                     "order": "0",
                                     "drop-action": {}
                                 }
                            ]
                        }
                    }
                ]
            },
            "flow-name": "flow1",
            "priority": "65535",
             "hard-timeout": "10",
             "cookie": "2",
             "table_id": "0"
         }
    ] 
}

四、實驗心得

本實驗要實現的功能與實驗六一樣，只是用Python 程式呼叫OpenDaylight 的北向介面下發關於硬超時的流表。寫好相關程式碼後，其餘操作與之前一樣，所以做下來很順利。我覺得相比起Postman下發流表，還是Python程式呼叫來的方便，因為上次出現了些問題做得久了些，而這次很快就做好了，還是因為Postman使用不夠熟吧，所以一些細節沒能把握好。