> For the complete documentation index, see [llms.txt](https://anida-huang.gitbook.io/notes-network-simulation-and-analysis/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://anida-huang.gitbook.io/notes-network-simulation-and-analysis/qi-zhong/20210301-mininet-jian-jie-yu-ji-ben-cao-zuo.md).
# 20210308 Iperf
## 課堂資料
{% file src="/files/-MVFVeChfwVPPcc2SiF7" %}
{% embed url="" %}
{% file src="/files/-MVFheUD96rlw7rF23ro" %}
{% embed url="" %}
{% embed url="" %}
{% embed url="" %}
## 課堂練習
### 安裝 pip
> #### 安裝 ppa
```
add-apt-repository ppa:deadsnakes/ppa
```
> #### Update packeges
```
apt-get update
```
```
apt-get upgrade
```
> #### 升級 python 2.x 到 python 3.x
```
apt-get install python3.6
```
```
apt-get install python3.6-gdbm
```
```
apt-get install python3.7
```
```
apt-get install python3.7-gdbm
```
```
apt install ansible
```
```
python -V
```
```
python3 -V
```
> #### 安裝 pip
```
apt-get install python3-pip
```
```
pip3 install --upgrade pip
```
> #### 設定優先順序
```
update-alternatives --install / usr / bin / python3 python3 /usr/bin/python3.6 1
```
```
update-alternatives --install / usr / bin / python3 python3 /usr/bin/python3.7 2
```
> #### 到 pip document 官方網站建議的載點下載 pip 安裝檔
```
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
```
> #### 啟動剛剛下載好的 get-pip.py 檔案
```
python3 get-pip.py
```
> #### 查看 pip 目前版本
```
python3 -m pip -V
```
### 額外補充
{% tabs %}
{% tab title="R1" %}
> ### Part 01.
```
en
```
```
conf t
```
```
ho R1
```
```
do writ
```
```
int e0/2
```
```
ip add dhcp
```
```
no shut
```
```
do sh ip int brief
```
> ### Part 03.
```
exit
```
```
username cisco privile 15 password cisco
```
```
ip domain-name test.com
```
```
crypto key generate rsa
```
```
ip ssh ver 2
```
```
line vty 0 4
```
```
login local
```
```
transport input ssh
```
{% endtab %}
{% tab title="ubuntu" %}
> ### Part 02.
```
ping 192.168.8.140
```
> ### Part 04.
```
ssh cisco@192.168.8.140
```
```
conf t
```
```
int e0/0
```
```
ip add 192.168.1.254 255.255.255.0
```
```
no shut
```
```
int e0/1
```
```
ip add 192.168.2.254 255.255.255.0
```
```
no shut
```
```
do sh ip int bri
```
```
exit
```
```
exit
```
```
exit
```
```
python3 -m pip install paramiko
```
```
python3 -m pip install --upgrade pip
```
```
python3
```
```
import paramiko
```
```
exit
```
```
mkdir cisco
```
```
cd cisco
```
```
gedit hosts config_cisco.yml
```
{% hint style="info" %}
> #### hosts
```
[cisco]
192.168.8.140 ansible_connection=local
```
> #### config\_cisco.yml
```
- hosts: 192.168.8.140
gather_facts: yes
vars:
- cisco_host_ip: 192.168.8.140
ssh_username: cisco
ssh_password: cisco
enable_open: yes
enable_password: cisco
roles:
- config_cisco
```
{% endhint %}
```
mkdir config_cisco
```
```
cd config_cisco
```
```
mkdir tasks
```
```
cd tasks
```
```
gedit main.yml
```
{% hint style="info" %}
> #### main.yml
```
- name: cisco_description_ssh_certification
set_fact:
cisco_verification:
host: "{{cisco_host_ip}}"
username: "{{ssh_username}}"
password: "{{ssh_password}}"
authorize: "{{enable_open}}"
auth_pass: "{{enable_password}}"
- name: config e0/0
ios_config:
provider: "{{cisco_verification}}"
parents: interface Ethernet 0/0
lines:
- ip addr 192.168.1.254 255.255.255.0
- no shut
- name: config e0/1
ios_config:
provider: "{{cisco_verification}}"
parents: interface Ethernet 0/1
lines:
- ip addr 192.168.2.254 255.255.255.0
- no shut
- name: show ip interface
ios_command:
provider: "{{cisco_verification}}"
commands: show ip interface brief
register: show_ip_log
- name: show_ip_log
debug:
var: show_ip_log.stdout_lines
with_items: show_ip_log.results
```
{% endhint %}
```
cd ..
```
```
cd ..
```
```
apt install tree
```
```
tree
```
```
ansible-playbook config_cisco.yml -i hosts
```
```
ansible-playbook plyabook.yml -i hosts
```
{% endtab %}
{% endtabs %}
```
cd ..
```
```
cd mininet
```
### Iperf
```
mn
```
```
net
```
```
xterm h1 h2
```
```
pingall
```
{% tabs %}
{% tab title="h2 - 1" %}
```
iperf -s -i 1
```
```
iperf -s -i 1 -u
```
```
iperf -s -i 1 -u -p 6666
```
* `-p`：port
{% endtab %}
{% tab title="h1 - 1" %}
```
iperf -c 10.0.0.2 -t 20
```
* `-c`：Client
* `-t`：Time
```
iperf -c 10.0.0.2 -t 10 -u -b 100M
```
```
iperf -c 10.0.0.2 -t 10 -u -b 100M -p 6666
```
{% endtab %}
{% endtabs %}
```
xterm h1 h2 s1
```
{% tabs %}
{% tab title="h2 - 2" %}
```
iperf -s -i 1 -u -p 5555
```
{% endtab %}
{% tab title="h1 - 2" %}
```
iperf -c 10.0.0.2 -t 10 -u -b 100M -p 5555
```
{% endtab %}
{% endtabs %}
```
exit
```
```
xterm h1 h2
```
{% tabs %}
{% tab title="h2 - 3" %}
```
iperf -s -i 1 -u -p 5555 > udp5555
```
```
^C
```
```
cat udp5555
```
```
cat udp5555 | grep sec
```
```
cat udp5555 | grep sec | grep -y 0.0-15
```
```
cat udp5555 | grep sec | head -n 14 > result.txt
```
{% endtab %}
{% tab title="h1 - 3" %}
```
iperf -c 10.0.0.2 -t 15 -u -b 100M -p 5555
```
{% endtab %}
{% endtabs %}
```
cd mininet
```
```
mn
```
```
xterm h1 h2
```
```
xterm s1
```
```
h1 ifconfig
```
```
h1 ping 10.0.0.2 -c 3
```
{% tabs %}
{% tab title="h2" %}
```
ping 10.0.0.2
```
```
python -m SimpleHTTPServer 80
```
{% endtab %}
{% tab title="h1" %}
```
su - user
```
```
firefox
```
```
ping 10.0.0.1
```
{% endtab %}
{% tab title="firefox" %}
```
10.0.0.2:80
```
{% endtab %}
{% endtabs %}
```
sh ls /tmp
```
```
pingall
```
### Gnuplot
```
apt install gnuplot
```
```
exit
```
```
gnuplot
```
```
plot "result.txt"
```
```
set yrange [0:110]
```
```
set ytics 0,10,110
```
```
replot
```
```
set xrange [0:15]
```
```
set xtics 0,5,15
```
```
plot "result.txt" with linespoints
```
```
set xtics 0,1,15
```
```
replot
```
```
set xlabel "tine (sec)"
```
```
set ylabel "throughput (Mbis/sec)"
```
```
replot
```
```
set title "udp throughput"
```
```
replot
```
```
set terminal "gif"
```
```
type set to 'gif'
```
```
set output "result.gif"
```
```
replot
```
```
exit
```