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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16
｜
第
2
章
2.1.3
业务敏捷性
我们知道，网络自动化为部署变更提供了速度和敏捷性，但它也能响应业务需求，快速地
从网络设备中检索数据，或者说得更实在些，能够尽可能快地动态排除网络故障。
随着服务器虚拟化的出现，服务器和虚拟化管理员有能力在瞬间部署好新的应用程序。应
用程序部署得越快，关于为什么配置网络资源（比如
VLAN
、路由
、防火墙策略、负载均
衡策略，如果部署的是新的三层架构应用程序，那么上述各种配置一个都少不了）要花费
这么久的疑问就越多。
很明显，通过采用网络自动化，网络工程师和运维团队得以更快地响应其对应的
IT
部门
并完成应用程序部署，但更重要的是，网络自动化有助于提高业务敏捷性。从采用的角度
来看，在尝试采用任何类型的自动化之前，不管使业务更加敏捷的设想有多好，理解现有
的、往往还是手动形式的工作流才是最重要的。
如果不知道要自动化什么，就会使自动化过程变得更复杂并出现拖延。在开启网络自动化
之旅的时候，
首要建议
是始终要理解现有的手动形式工作流，并形成书面文档，同时弄清
楚其对于业务造成的影响。如此一来，自动化技术和工具的部署过程就变得简单多了。
从简化架构到业务敏捷性，本节介绍了一些关于为什么应该考虑网络自动化的观点。下一
节将描述不同类型的网络自动化。
2.2
网络自动化的类型
网络自动化通常等同于速度，考虑到部分网络任务对速度并无要求，也就很容易明白为什
么有些
IT
团队看不出自动化的价值所在了
。
VLAN
配置就是一个很好的例子，因为你也
许会想：“创建一个
VLAN
到底要多快
？每天需要添加多少 ...
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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.