simple ovsdb echo example

echoOvsdb.py

#!/bin/env python

# Playing with ovsdb json rpc
# https://tools.ietf.org/html/rfc7047#section-4.1.11
# https://keepingitclassless.net/2013/10/introduction-to-open-vswitch/
# https://keepingitclassless.net/2013/10/ovsdb-echo-in-python/

import socket
import json
import time


def pingOVS(s, pingId):
    #Send JSON to socket
    print("Sending echo request =====>")
    s.send(json.dumps({'method':'echo','id':str(pingId),'params':["hi"]}))


    #Wait for response and print to console
    result = json.loads(s.recv(1024))
    print("<========" + str(result))
    time.sleep(2)


#Create socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)


#Establish TCP session via IP address and port specified
s.connect(("127.0.0.1", 6641))


for pingId in range(3):
    pingOVS(s, pingId)

#Exit
s.close()