网络实验——在linux平台安装OLSR协议

Leeshy 出版于 Network

2022-03-27 约 1115 字预计阅读 3 分钟

在linux平台安装OLSR协议

前言

因为要做一个OLSR和SDN自定义控制面的对比实验，所以要利用mininet-wifi平台自定义拓扑跑一下OLSR协议。

平台：ubuntu20.04

安装

官网：www.olsr.org/
github：https://github.com/OLSR/olsrd

通过mininet-wifi安装

进入mininet-wifi目录sudo ./install.sh -o

从git安装(没有亲自试，来自网络)

安装语法分析器：sudo apt install bison flex
下载源码：git clone https://github.com/OLSR/olsrd
编译：cd olsrd;make
安装：sudo make install

mininet-wifi拓扑构建

构造一个网络拓扑来测试OLSR协议。

拓扑文件（参考example/adhoc.py）：

https://github.com/leeshy-tech/mininet-wifi/blob/master/examples/OLSR/olsr_test.py

#!/usr/bin/python

"""
This example use four motionless station to test the OLSR protocol in adhoc network.
It's almost the same as example/adhoc.py.
use "sudo python olsr_test.py olsrd" in terminal to run it.
"""

import sys

from mininet.log import setLogLevel, info
from mn_wifi.link import wmediumd, adhoc
from mn_wifi.manetRoutingProtocols import olsrd
from mn_wifi.cli import CLI
from mn_wifi.net import Mininet_wifi
from mn_wifi.wmediumdConnector import interference


def topology(args):
    "Create a network."
    net = Mininet_wifi(link=wmediumd, wmediumd_mode=interference)

    info("*** Creating nodes\n")
    kwargs = dict()
    if '-a' in args:
        kwargs['range'] = 100

    sta1 = net.addStation('sta1', ip6='fe80::1',position='25,50,0', **kwargs)
    sta2 = net.addStation('sta2', ip6='fe80::2',position='75,10,0', **kwargs)
    sta3 = net.addStation('sta3', ip6='fe80::3',position='75,90,0', **kwargs)
    sta4 = net.addStation('sta4', ip6='fe80::4',position='125,50,0', **kwargs)

    net.setPropagationModel(model="logDistance", exp=4)

    info("*** Configuring wifi nodes\n")
    net.configureWifiNodes()

    info("*** Creating links\n")
    # MANET routing protocols supported by proto:
    # babel, batman_adv, batmand and olsr
    # WARNING: we may need to stop Network Manager if you want
    # to work with babel
    protocols = ['babel', 'batman_adv', 'batmand', 'olsrd', 'olsrd2']
    kwargs = dict()
    for proto in args:
        if proto in protocols:
            kwargs['proto'] = proto

    net.addLink(sta1, cls=adhoc, intf='sta1-wlan0',
                ssid='adhocNet', mode='g', channel=5,
                ht_cap='HT40+',  **kwargs)
    net.addLink(sta2, cls=adhoc, intf='sta2-wlan0',
                ssid='adhocNet', mode='g', channel=5,
                ht_cap='HT40+', **kwargs)
    net.addLink(sta3, cls=adhoc, intf='sta3-wlan0',
                ssid='adhocNet', mode='g', channel=5,
                ht_cap='HT40+', **kwargs)
    net.addLink(sta4, cls=adhoc, intf='sta4-wlan0',
                ssid='adhocNet', mode='g', channel=5,
                ht_cap='HT40+', **kwargs)

    net.plotGraph(max_x=200, max_y=200)

    info("*** Starting network\n")
    net.build()

    info("\n*** Addressing...\n")
    if 'proto' not in kwargs:
        sta1.setIP6('2001::1/64', intf="sta1-wlan0")
        sta2.setIP6('2001::2/64', intf="sta2-wlan0")
        sta3.setIP6('2001::3/64', intf="sta3-wlan0")
        sta4.setIP6('2001::4/64', intf="sta4-wlan0")

    info("*** Running CLI\n")
    CLI(net)

    info("*** Stopping network\n")
    net.stop()


if __name__ == '__main__':
    setLogLevel('info')
    topology(sys.argv)