mininet怎么查看交换机的配置

要PC通过console口连接到交换机，并查看配置，首先需要一根RS23转RG45调试线，然后 *** 作步骤如下：

1、先用调试线连接PC和交换机，调试线一头接PC串口，一头接交换机CONSOLE接口

2、打开系统自带的超级终端（win7及以上系统需要下载）。运行超级终端程序，连接口设置com1（看连在哪个口，如果是COM2就设置成COM2，在电脑属性-设备管理器里查看）。

位率选择9600（一般是这个，如果更改了，就选择和更改一样的数值）

3、这样就登录到交换机设置界面了，输入用户名和密码登录（没设置是直接登录）

4、在设置界面输入以下命令

system

display current-configuration

就可以查看交换机当前配置信息了

1、重置DNS，打开开始菜单，找到“附件”，找到“附件”里边的“命令提示符”。

2、以管理员身份运行命令提示符。

3、输入“ipconfig /flushdns”命令，重置DNS。

4、然后检查IE设置。打开IE，点击右上角工具。选择“Internet选项”。

5、点击“连接”选择“局域网设置”

6、在“使用自动配置脚本”前打勾“√”，然后点击确定即可。

7、若还是不行，重启Modem.若是通过路由器和Modem上网，则两者均断电重启即可。

Mininet教程

摘要：

这里给出了Mininet在ubuntu 12.04 KVM (qemu 1.0)的环境下测试

提前准备：宿主机ubuntu + 虚拟机KVM（官方给出的镜像是vmdk vmware格式，教程中给出了vmdk到KVM镜像qcow2装换）

*** 作系统：ubuntu server amd64

安装完成后设置宿主机网络为

ubuntu@node2:~$ cat /etc/network/interfaces

# This file describes the network interfaces available on your system

# and how to activate them. For more information, see interfaces(5).

# The loopback network interface

auto lo

iface lo inet loopback

auto eth0

iface eth0 inet static

address 192.168.1.12

gateway 192.168.1.1

netmask 255.255.255.0

auto eth1

iface eth1 inet manual

auto br0

iface br0 inet static

address 192.168.1.18

gateway 192.168.1.1

netmask 255.255.255.0

bridge_ports eth1

bridge_stp on

bridge_maxwait 0

重启网络服务，出现 br0网桥，这里假设有双网卡。单网卡也可以见后文。

然后安装 KVM

apt-get install -y kvm libvirt-bin

添加用户到libvirtd组

useradd $USER libvirtd

virsh net-destroy virtbr0 &&virsh net-undefine virbr0

然后重启libvirt-bin

service libvirt-bin restart

对于单网卡使用KVM桥接方式的的用户

brctl addbr br0

ifup br0

ifconfig br0 promisc

ifconfig br0 192.168.1.100 netmask 255.55.255.0 dev br0

就可以使用KVM桥接方式网桥br0

下载 mininet vmware镜像

wget https://github.com/downloads/mininet/mininet/mininet-2.0.0-113012-amd64-ovf.zip

转化镜像 vmware 格式到 kvm支持的格式

如果使用的是vmware workstation 略过

使用KVM 并且 qemu-img 版本1.0 报错

qemu-img convert -O qcow2 mininet-vm-disk1.vmdk mininet-vm-disk1.qcow2

报错

ubuntu@node2:~/vmimg/mininet-ovf$ qemu-img convert -O qcow2 mininet-vm-disk1.vmdk mininet-vm-disk1.qcow2

qemu-img: error while reading sector 131072: Invalid argument

ubuntu@node2:~/vmimg/mininet-ovf$ qemu-img convert -f vmdk -O qcow2 mininet-vm-disk1.vmdk mininet-vm-disk1.qcow2

qemu-img: error while reading sector 131072: Invalid argument

ubuntu@node2:~/vmimg/mininet-ovf$

conversion of a VMDK image with qemu-img failed with “error while reading sector 131072: Invalid argument”解决办法http://serverfault.com/questions/429478/conversion-of-a-vmdk-image-with-qemu-img-failed-with-error-while-reading-sector

原因是qemu的版本太低需要大于1. x

cd /tmp

apt-get install apt-get install libglib2.0-dev

wget http://wiki.qemu.org/download/qemu-1.2.0.tar.bz2

tar xf qemu-1.2.0.tar.bz2

cd qemu-1.2.0 &&./configure &&make -j16 （时间较长）

在/etc/libvirt/qemu/下创建mininet.xml(xml文件格式定义KVM镜像配置具体google "qemu syntax")

sudo cat mininet.xml

[sudo] password for ubuntu:

<!--

WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE

OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:

virsh edit mininet

or other application using the libvirt API.

-->

<domain type='kvm'>

<name>mininet</name>

<uuid>3245e642-05dc-bd23-6d0e-e7582dc00660</uuid>

<memory>4194304</memory>

<currentMemory>4194304</currentMemory>

<vcpu cpuset='1,3,5,7,9,11,13,15'>4</vcpu>

<os>

<type arch='x86_64' machine='pc-1.0'>hvm</type>

<boot dev='hd'/>

</os>

<features>

<acpi/>

<apic/>

<pae/>

</features>

<cpu match='exact'>

<model>Westmere</model>

<vendor>Intel</vendor>

<feature policy='require' name='tm2'/>

<feature policy='require' name='est'/>

<feature policy='require' name='vmx'/>

<feature policy='require' name='ds'/>

<feature policy='require' name='ss'/>

<feature policy='require' name='vme'/>

<feature policy='require' name='rdtscp'/>

<feature policy='require' name='ht'/>

<feature policy='require' name='dca'/>

<feature policy='require' name='pbe'/>

<feature policy='require' name='tm'/>

<feature policy='require' name='pdpe1gb'/>

<feature policy='require' name='ds_cpl'/>

<feature policy='require' name='xtpr'/>

<feature policy='require' name='acpi'/>

<feature policy='require' name='monitor'/>

</cpu>

<clock offset='utc'/>

<on_poweroff>destroy</on_poweroff>

<on_reboot>restart</on_reboot>

<on_crash>restart</on_crash>

<devices>

<emulator>/usr/bin/kvm</emulator>

<disk type='file' device='disk'>

<driver name='qemu' type='qcow2'/>

<source file='/var/lib/libvirt/images/mininet-vm-disk1.qcow2'/>

<target dev='vda' bus='virtio'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>

</disk>

<interface type='bridge'>

<mac address='52:54:00:31:05:76'/>

<source bridge='br0'/>

<model type='virtio'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>

</interface>

<serial type='pty'>

<target port='0'/>

</serial>

<console type='pty'>

<target type='serial' port='0'/>

</console>

<input type='mouse' bus='ps2'/>

<graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/>

<sound model='ich6'>

<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>

</sound>

<video>

<model type='cirrus' vram='9216' heads='1'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>

</video>

<memballoon model='virtio'>

<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>

</memballoon>

</devices>

</domain>

virsh create /etc/libvirt/qemu/mininet.xml

virsh consloe mininet

使用mininet:mininet

登陆修改

sudo ifconfig eth0 192.168.1.19 netmask 255.255.255.0 up

sudo route add default gw 192.168.1.1

sudo echo "nameserver 61.139.2.69" >/etc/resolv.conf

sudo echo "nameserver 61.139.2.69" >/etc/resolvconf/resolv.conf.d/base

ssh [email protected]

账户 mininet

密码 mininet

配置静态IP

root@mininet-vm:~# cat /etc/network/interfaces

# This file describes the network interfaces available on your system

# and how to activate them. For more information, see interfaces(5).

# The loopback network interface

auto lo

iface lo inet loopback

# The primary network interface

auto eth0

iface eth0 inet static

address 192.168.1.19

gateway 192.168.1.1

netmask 255.255.255.0

root@mininet-vm:~#

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