ubuntu 下实现 docker+ovs+quagga搭建网络---bgp

柔光的暖阳◎ 2023-06-18 10:58 17阅读 0赞

注：本机上现有quagga镜像+ovs虚拟交换机(2.9.1)+docker(18.09.7)

# 实现bgp网络搭建： #

**1、sudo ovs-vsctl add-br br1**** **          \#增加一个ovs网桥br1

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70][]

**   2、sudo docker images **                        \#查看本机的镜像是否制作成功      [quagga的镜像创建过程请看上一篇][quagga]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 1][]

**   3、部署BGP网络**

![BGP网络拓扑图][BGP]

sudo docker run -itd --privileged=true \--network none \--name BGP1 quagga:latest /bin/bash       \#生成BGP1容器

sudo ovs-docker add-port br1 eth1 BGP1 --ipaddress=192.168.2.1/24                 \#添加网卡eth1  
 sudo ovs-docker add-port br1 eth2 BGP1 --ipaddress=100.100.0.1/30                 \#添加网卡eth2

sudo docker run -itd --privileged=true \--network none --name BGP2 quagga:latest /bin/bash       \#生成BGP2容器

sudo ovs-docker add-port br1 eth1 BGP2 --ipaddress=10.10.2.1/24                       \#添加网卡eth1  
sudo ovs-docker add-port br1 eth2 BGP2 --ipaddress=100.100.0.2/30                  \#添加网卡eth2

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 2][]

进入BGP1容器运行quagga 程序。 具体操作内容见下图

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 3][]

*[想了解nohup 与& 请移步][nohup _]。 *现在碰到日志文件nohup.out 出现了“Can't create pid lock file /run/quagga/zebra.pid (No such file or directory),exiting”的问题

进行下面的操作（到具体的目录下创建quagga文件，并执行chown -R quagga.quagga /run/quagga/）

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 4][]

查看是否问题解决，进入到/etc/quagga 目录下，执行nohup zebra & 然后退出（回车或者crtl+c），查看nohup.out 内容

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 5][]

以相同的方式启动bgpd 、ospd 服务，netstat -tunlp  检测是否启动成功

![20191202101214194.png][]

![20191202101303441.png][]

**以上操作以相同的方式在BGP2中执行**

对容器BGP1进行如下配置（路由A配置），输入show ip bgp summary查看配置是否成功

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 6][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 7][]

对容器BGP2进行如下配置（路由B配置），输入show ip bgp summary查看配置是否成功

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 8][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 9][]

配置BGP前缀(*网络network*)通告

AS 100将以192.168.2.1/24作为通告，在我们的例子中AS 200将同样以10.10.2.1/24作为通告。这些前缀需要被添加到BGP配置如下。

在路由器A中：（确认前缀的数量是否被改变了,输入“show ip bgp summary”查看）

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 10][]

在路由器B中：（确认前缀的数量是否被改变了,输入“show ip bgp summary”查看）

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 11][]

<1>、查看所接收的更多前缀细节，我们可以使用以下命令，“show ip bgp neighbors 邻居IP advertised-routes”  
这个命令用于显示邻居所接收到的前缀总数(以BGP1为例)

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 12][]

<2>、查看哪一个前缀是我们从邻居接收到的,可以使用如下命令：“show ip bgp neighbors 邻居IP routes”(以BGP2为例)

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 13][]

<3>、也可以查看所有的BGP路由器：“show ip bgp”(以BGP2为例)

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 14][]

**4、测试BGP网络**

***方式一：***

在BGP1中ping 100.100.0.2和ping 10.10.2.1都可以通

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 15][]

在BGP2中ping 100.100.0.1和ping 192.168.2.1都可以通

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 16][]

***方式二：***

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 17][]

### ***Tip:*** ###

需要注意的是，当你第二次重复使用您的BGP1与BGP2的时候，请查看您的ovs状态（sudo ovs-vsctl show），如果出现异常，请重新执行步骤1，并且重新给BGP1和BGP2添加网卡。

异常如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 18][]

操作如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0xpZ2h0X1RyYXZsbGluZw_size_16_color_FFFFFF_t_70 19][]

本文有些参考:[https://blog.8086k.cn/archives/52/][https_blog.8086k.cn_archives_52]

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[quagga]: https://blog.csdn.net/Light_Travlling/article/details/103340498
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[BGP]: https://imgconvert.csdnimg.cn/aHR0cHM6Ly9ibG9nLjgwODZrLmNuL2Fzc2VydHMveCxQRTQsUEJELFBCRixQRTcsUDk0LFBBOE9WUytEb2NrZXIrcXVhZ2dhLFBFNixQOTAsUEFELFBFNSxQQkIsUEJBQlVHLFBFNyxQQkQsUDkxLFBFNyxQQkIsUDlDLmpwZy5wYWdlc3BlZWQuaWMuUHNoSzVQeWhNaS53ZWJw?x-oss-process=image/format,png
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[nohup _]: https://blog.csdn.net/Light_Travlling/article/details/103333344
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[20191202101214194.png]: https://img-blog.csdnimg.cn/20191202101214194.png
[20191202101303441.png]: https://img-blog.csdnimg.cn/20191202101303441.png
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[https_blog.8086k.cn_archives_52]: https://blog.8086k.cn/archives/52/