这是python代码：
import os
import paramiko
import sys
def get_private_key():
# or choose the location and the private key file on your client
private_key_file = os.path.expanduser("/home/ubuntu/.ssh/id_rsa")
return paramiko.RSAKey.from_private_key_file(private_key_file, password='')
def get_ssh(myusername, myhostname, myport):
ssh = paramiko.SSHClient()
ssh.load_system_host_keys()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
#ssh.connect(myhostname, username=myusername, port=myport, pkey = private_key)
ssh.connect(myhostname, username=myusername, port=myport)
return ssh
def block_exec(ssh, command):
stdin, stdout, stderr = ssh.exec_command(command)
exit_status = stdout.channel.recv_exit_status()
print command, exit_status
print "stderr is %s" % stderr
return
def clear_bw_config2(ssh, interface):
block_exec(ssh, "sudo tc qdisc del dev %s root" % interface)
block_exec(ssh, "sudo tc qdisc del dev %s ingress" % interface)
block_exec(ssh, "sudo tc class del dev %s root" % interface)
block_exec(ssh, "sudo tc filter del dev %s root" % interface)
def exec_bw_config2(ssh, interface, bandwidth, ip, subnetmasklength, delay):
clear_bw_config2(ssh, interface)
# create a qdisc (queuing discipline), 12 is default class
cmd1 = "sudo tc qdisc add dev %s root handle 1: htb default 12" % interface
print cmd1
block_exec(ssh, cmd1)
# define the performance for default class
cmd2 = "sudo tc class add dev %s parent 1: classid 1:1 htb rate %dmbps ceil %dmbps" % (interface, bandwidth, 2*bandwidth )
print cmd2
block_exec(ssh, cmd2)
filter_cmd = "sudo tc filter add dev %s protocol ip parent 1:0 prio 1 u32 match ip dst %s/%d flowid 1:1" % (interface, ip, subnetmasklength)
print filter_cmd
block_exec(ssh, filter_cmd)
#delay_cmd = "sudo tc qdisc add dev eth0 parent 1: handle 1: netem delay %dms" %(delay)
delay_cmd="sudo tc qdisc add dev eth0 root netem %dms" %delay
print delay_cmd
block_exec(ssh, delay_cmd)
def main():
myhosts = ["10.0.1.192", "10.0.1.191", "10.0.1.190"]
username="ubuntu"
port=22
#key = get_private_key()
for host in myhosts:
ssh = get_ssh(username, host, port)
clear_bw_config2(ssh, "eth0")
del_cmd="sudo tc qdisc del dev eth0 root"
block_exec(ssh, del_cmd)
exec_bw_config2(ssh, "eth0", int(sys.argv[1]) , "10.0.1.0", 24, int(sys.argv[2]))
# iterate over hosts here
# for everyhost,
# 1. create ssh connection
# 2. run the exec_bw_config with params
return
if __name__ == '__main__':
main()
我正在运行这样的脚本：
python network_controller_vm.py 100 10
这是我收到的错误：
sudo tc qdisc del dev eth0 root 2
RTNETLINK answers: No such file or directory
sudo tc qdisc del dev eth0 ingress 2
RTNETLINK answers: No such file or directory
sudo tc class del dev eth0 root 2
RTNETLINK answers: Invalid argument
sudo tc filter del dev eth0 root 2
RTNETLINK answers: No such file or directory
We have an error talking to the kernel
sudo tc qdisc del dev eth0 root 2
RTNETLINK answers: No such file or directory
sudo tc qdisc del dev eth0 root 2
RTNETLINK answers: No such file or directory
sudo tc qdisc del dev eth0 ingress 2
RTNETLINK answers: No such file or directory
sudo tc class del dev eth0 root 2
RTNETLINK answers: Invalid argument
sudo tc filter del dev eth0 root 2
RTNETLINK answers: No such file or directory
We have an error talking to the kernel
sudo tc qdisc add dev eth0 root handle 1: htb default 12
sudo tc qdisc add dev eth0 root handle 1: htb default 12 0
sudo tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbps ceil 200mbps
sudo tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbps ceil 200mbps 0
sudo tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip dst 10.0.1.0/24 flowid 1:1
sudo tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip dst 10.0.1.0/24 flowid 1:1 0
sudo tc qdisc add dev eth0 root netem 10ms
sudo tc qdisc add dev eth0 root netem 10ms 1
What is "10ms"?
Usage: ... netem [ limit PACKETS ]
[ delay TIME [ JITTER [CORRELATION]]]
[ distribution {uniform|normal|pareto|paretonormal} ]
[ corrupt PERCENT [CORRELATION]]
[ duplicate PERCENT [CORRELATION]]
[ loss random PERCENT [CORRELATION]]
[ loss state P13 [P31 [P32 [P23 P14]]]
[ loss gemodel PERCENT [R [1-H [1-K]]]
[ ecn ]
[ reorder PRECENT [CORRELATION] [ gap DISTANCE ]]
[ rate RATE [PACKETOVERHEAD] [CELLSIZE] [CELLOVERHEAD]]
sudo tc qdisc del dev eth0 root 2
RTNETLINK answers: No such file or directory
sudo tc qdisc del dev eth0 ingress 2
RTNETLINK answers: No such file or directory
sudo tc class del dev eth0 root 2
RTNETLINK answers: Invalid argument
sudo tc filter del dev eth0 root 2
RTNETLINK answers: No such file or directory
We have an error talking to the kernel
sudo tc qdisc del dev eth0 root 2
RTNETLINK answers: No such file or directory
sudo tc qdisc del dev eth0 root 2
RTNETLINK answers: No such file or directory
sudo tc qdisc del dev eth0 ingress 2
RTNETLINK answers: No such file or directory
sudo tc class del dev eth0 root 2
RTNETLINK answers: Invalid argument
sudo tc filter del dev eth0 root 2
RTNETLINK answers: No such file or directory
We have an error talking to the kernel
sudo tc qdisc add dev eth0 root handle 1: htb default 12
sudo tc qdisc add dev eth0 root handle 1: htb default 12 0
sudo tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbps ceil 200mbps
sudo tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbps ceil 200mbps 0
sudo tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip dst 10.0.1.0/24 flowid 1:1
sudo tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip dst 10.0.1.0/24 flowid 1:1 0
sudo tc qdisc add dev eth0 root netem 10ms
sudo tc qdisc add dev eth0 root netem 10ms 1
What is "10ms"?
Usage: ... netem [ limit PACKETS ]
[ delay TIME [ JITTER [CORRELATION]]]
[ distribution {uniform|normal|pareto|paretonormal} ]
[ corrupt PERCENT [CORRELATION]]
[ duplicate PERCENT [CORRELATION]]
[ loss random PERCENT [CORRELATION]]
[ loss state P13 [P31 [P32 [P23 P14]]]
[ loss gemodel PERCENT [R [1-H [1-K]]]
[ ecn ]
[ reorder PRECENT [CORRELATION] [ gap DISTANCE ]]
[ rate RATE [PACKETOVERHEAD] [CELLSIZE] [CELLOVERHEAD]]
sudo tc qdisc del dev eth0 root 2
RTNETLINK answers: No such file or directory
sudo tc qdisc del dev eth0 ingress 2
RTNETLINK answers: No such file or directory
sudo tc class del dev eth0 root 2
RTNETLINK answers: Invalid argument
sudo tc filter del dev eth0 root 2
RTNETLINK answers: No such file or directory
We have an error talking to the kernel
sudo tc qdisc del dev eth0 root 2
RTNETLINK answers: No such file or directory
sudo tc qdisc del dev eth0 root 2
RTNETLINK answers: No such file or directory
sudo tc qdisc del dev eth0 ingress 2
RTNETLINK answers: No such file or directory
sudo tc class del dev eth0 root 2
RTNETLINK answers: Invalid argument
sudo tc filter del dev eth0 root 2
RTNETLINK answers: No such file or directory
We have an error talking to the kernel
sudo tc qdisc add dev eth0 root handle 1: htb default 12
sudo tc qdisc add dev eth0 root handle 1: htb default 12 0
sudo tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbps ceil 200mbps
sudo tc class add dev eth0 parent 1: classid 1:1 htb rate 100mbps ceil 200mbps 0
sudo tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip dst 10.0.1.0/24 flowid 1:1
sudo tc filter add dev eth0 protocol ip parent 1:0 prio 1 u32 match ip dst 10.0.1.0/24 flowid 1:1 0
sudo tc qdisc add dev eth0 root netem 10ms
sudo tc qdisc add dev eth0 root netem 10ms 1
What is "10ms"?
Usage: ... netem [ limit PACKETS ]
[ delay TIME [ JITTER [CORRELATION]]]
[ distribution {uniform|normal|pareto|paretonormal} ]
[ corrupt PERCENT [CORRELATION]]
[ duplicate PERCENT [CORRELATION]]
[ loss random PERCENT [CORRELATION]]
[ loss state P13 [P31 [P32 [P23 P14]]]
[ loss gemodel PERCENT [R [1-H [1-K]]]
[ ecn ]
[ reorder PRECENT [CORRELATION] [ gap DISTANCE ]]
[ rate RATE [PACKETOVERHEAD] [CELLSIZE] [CELLOVERHEAD]]