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深入理解NFV-利用OPNFV加速NFV转型(官方版)
OPNFV官方出版,第一本真正意义上的NFV说明书籍。
网络功能虚拟化(Network functions virtualization),即NFV,是一个划时
代的变革,将会彻底改变网络的构建和运营。这一趋势将对电信运营商和技术供应商
产生深刻影响。事实上,如果没有NFV,我们很难想象5G的愿景能够得到实现。这一
变革在非电信领域同样影响深远:公司如何将分支机构连接到中央数据中心,智慧城
市如何提供全市范围内的连接,以及生产商、公用事业和汽车制造商如何构建物联网
,这一切都会被NFV改变。
2017-11-10
H3C SDN Overlay技术白皮书
1 概述 ····················································································································································· 1
1.1 产生背景··············································································································································1
1.2 技术优点··············································································································································1
2 Overlay技术介绍··································································································································· 3
2.1 Overlay的概念介绍·······························································································································3
2.2 Overlay的解决方法·······························································································································3
3 Overlay技术实现··································································································································· 5
3.1 Overlay网络基础架构 ···························································································································5
3.2 Overlay网络部署需求 ···························································································································7
3.2.1 VXLAN网络和传统网络互通的需求 ···························································································7
3.2.2 VXLAN网络安全需求 ·················································································································7
3.2.3 Overlay网络虚拟机位置无关性··································································································8
3.2.4 Overlay与SDN的结合 ················································································································8
4 H3C SDN Overlay模型设计··················································································································9
4.1 H3C SDN Overlay模型设计 ·················································································································9
4.2 SDN控制器模型介绍 ··························································································································11
4.3 H3C SDN Overlay组件介绍 ···············································································································12
4.4 SDN Overlay网络与云对接 ················································································································13
4.4.1 SDN Overlay与OpenStack对接·······························································································14
4.4.2 SDN Overlay与基于OpenStack的增强云平台对接··································································15
4.4.3 SDN Overlay与非OpenStack云平台对接 ················································································16
4.5 服务链在Overlay网络安全中的应用···································································································16
4.5.1 什么是服务链 ··························································································································16
4.5.2 Overlay网络服务链节点描述····································································································17
4.5.3 服务链在Overlay网络安全中的应用························································································17
5 SDN Overlay组网方案设计················································································································· 19
5.1 SDN Overlay组网模型························································································································19
5.1.1 网络Overlay ····························································································································20
5.1.2 主机Overlay ····························································································································20
5.1.3 混合Overlay ····························································································································20
5.2 H3C SDN Overlay典型组网 ···············································································································20
5.2.1 网络Overlay ····························································································································20
ii
5.2.2 主机Overlay ····························································································································23
5.2.3 混合Overlay ····························································································································26
5.2.4 Overlay组网总结······················································································································26
6 SDN Overlay转发流程描述················································································································· 28
6.1 SDN Overlay流表建立和发布·············································································································28
6.1.1 流表建立流程对ARP的处理 ····································································································28
6.1.2 Overlay网络到非Overlay网络··································································································28
6.1.3 非Overlay网络到Overlay网络 ·································································································29
6.2 Overlay网络转发流程 ·························································································································29
6.2.1 Overlay网络到非Overlay网络··································································································30
6.2.2 非Overlay网络到Overlay网络 ·································································································31
6.3 Overlay网络虚机迁移 ·························································································································32
6.4 SDN Overlay升级部署方案 ················································································································33
6.4.1 SDN Overlay独立分区部署方案·······························································································33
6.4.2 IP GW旁挂部署方案 ················································································································34
6.4.3 核心升级, SDN Overlay独立分区 ··························································································35
6.4.4 Overlay网关弹性扩展升级部署································································································35
6.4.5 多数据中心同一控制器集群部署 ·····························································································36
7 SDN Overlay方案优势总结················································································································· 37
2017-11-10
OpenFlow&VxLAN;
完整、无码、清晰扫描版
在过去的几年里,就网络发展如何跟上服务器虚拟化的演变节奏,已经有许多相关研究。从
很多企业开始投入大量资金研发 SDN 起,互联网的发展趋势就已经逐渐显现。关于 SDN 的精确定
义仍在完善之中,但是 SDN 总的原则和基本协议已经明确了。
作为 SDN 的学习辅导书,本书主要讨论了 SDN 最具发展前景的一种协议: OpenFlow。同时本书
也涉及到 SDN 的其他实现: 虚拟可扩展局域网( VxLAN)
2017-11-10
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