April 2015
Intermediate to advanced
372 pages
6h 56m
Chinese
Content preview from SDN: 軟體定義網路
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
總結 | 319
感知網路（例如，Plexxi，Helios
16
，OSA
17
），或是之前提到啟用 TDF 移動 NFV 的範
例，有著概念及運作上的些許不同。
像 Plexxi 這樣的解決方案，能夠支援兩種工作方式，以修改 Hadoop 任務追蹤器 / 名稱
節點，使它們匯出一個節點列表清單，這個節點清單可以作為靜態，且具備親和性以進
行對應後導入 Plexxi 控制器。
總結
與健康服務相關的資料中心擁有多位目標客戶方案，因此各種潛在的資料流程（和問
題），資料中心內有一些已經客製化完成，同時可以識別服務的網路元件（例如，負載
平衡、防火牆及網路閘道）。
但是資料中心協調流程，不一定非常複雜也不一定非要採用 SDN 技術不可。因此，本
章加入 DevOps 的範例，適用於較為簡單的資料中心架構並採用 VLAN 機制進行部署。
我們集中討論特殊的應用類別 - 巨量資料以結束本章。除了介紹 SDN 技術將會如何影響
巨量資料之外，還討論有關於 SDN 所扮演的角色（並且留給讀者一些討論空間）：它可
以讓應用去感知網路環境，還是反過來讓網路環境感知應用，或者是兩者皆有可能。
本章嘗試說明一些常見且有用的資訊，以及資料中心當中和 NFV 有關的使用案例。這
些話題混合在相關範例中，因為到目前為止還是很難將它們分開。雖然看上去可能只是
紙上談兵，但這些使用案例都是用於實際的部署環境，不過對於這些部署內容及公開研
究，我們都刻意進行匿名化的處理。資料中心協調流程，是 SDN 標誌性的重要應用並
長期在強大的光環之下，令人難以舉出新的使用案例，所以本章說明和討論一些典型的 ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.