January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Content preview from 可编程网络自动化
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414
｜
附录
A
在撰写本书之时，
OVS
到
Hyper-V
的移植已经接近完成。包括
OpenStack
在内的很多管理
和编排系统支持
OVS
。
鉴于
OVS
在
SDN
和网络自动化领域的突出作用
，在一本关于网络自动化的书中介绍
OVS
可以说是众望所归。然而，由于
OVS
支持的众多特性
，我们只能对讨论范围做出限制。
因此，本书将重点关注以下
3
个核心方面。
•
安装
OVS
（仅限于
Linux
系统）
•
配置
OVS
•
将工作负载连接到
OVS
先从安装
OVS
开始。
A.5.1
安装
OVS
由于
OVS
的架构（由用户空间守护进程和内核模块组成），安装
OVS
的过程视
Linux
发
行版以及要使用的
OVS
内核模块版本而异。
从
3.3
版开始
，上游的
Linux
内核已经附带了
OVS
模块。要使用上游的内核模块，无须额
外的操作，只需安装用户空间组件即可。另外，如果偏好使用
OVS
树的内核模块
（可能比
上游模块更新，因此支持更多的特性），那么就得为当前运行的内核安装并编译内核模块。
如果想验证所用的
Linux
内核是否支持上游的
OVS
内核模块，那么只需运
行
modprobe openvswitch
即可。（如果没有
root
权限，则可能要使用
sudo
。
)
如果命令报错，那么说明内核没有
OVS
上游模块，你需要安装一个内核模
块。记住，上游的
OVS
模块是从
Linux
内核
3.3
版本开始有的，所以大多数
的现代发行版内核中包含上游的
OVS
模块。
在
Debian 8.
x
和
Ubuntu 14.04
中，用户空间组件和内核模块的安装包都可以在主仓库中找
到。因此，只需使用
apt-get ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.