為了快速生成有規律的VRF，寫了一個python腳本，可以快速生成如下的VRF配置。

ip vpn-instance vpn0
ipv4-family
route-distinguisher 600:600
vpn-target 600:600 both
quit
quit

#!/usr/bin/python2.7


def main():
    f = open(‘./vrf.txt‘, ‘w‘)

    for i in range(0,500):
        vrf = "vpn"+str(i)
        vlan = 600 + i

        f.write("ip vpn-instance  
 
" + vrf + "\n")
        f.write("ipv4-family  " + "\n")
        f.write("route-distinguisher " + str(vlan) + ":" + str(vlan) + "\n")
        f.write("vpn-target " + str(vlan) + ":" + str(vlan) + " both \n")
        f.write("quit " + "\n")
        f.write("quit" + "\n")
        f.write("\r\n")

    f.close()


 
if __name__ == ‘__main__‘:
    main()

運行後可以理解生成vrf.txt文件。

利用python生成交換機的VRF配置文件