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SDN x Cloud Native 開源專案如何改變電信商及資料中心 - JianHao === ###### tags: `COSCUP2020` `中階` `AU` {%hackmd 7CD4pdKQTa2p6Y3VqH3VrQ %} > 請從這裡開始 # 電信商及服務供應商的幾個思維 在達成目的的前提下,考慮: - 成本 - 維運 - 例如給裝機工班的SOP - 替代 - *背鍋* - 要有統一的窗口,有問題找他就對了,SI公司 ## telco projects sample: broadband ### R-CORD (before) 改造機房 - 各種奇怪的設備塞在機櫃裡面 - 把奇怪的機器 NFB 化,好維運 - 讓接取端設備導入 traffic - VNF多時,會過好幾層underlay/overlay,效能慘不忍睹 ### SEBA (now) - 讓server只是維運軟體就好,至少先達成performance和可用性 - 用 compute node 軟體控制 OLT(純控制,data仍有switch) - 一台 server 可控制多 OLT,且效能可接受,可商用化 - 對已有雲端機房的電信商而言較有吸引力 ### 變種 - OLT提升運算能力,當k8s node - 合久必分,分久必合 ## ... mobile ### M-CORD (before) ### Aether (now) - 混合雲,edge負責user plane,central cloud(core)負責control plane - poc only ### SD-WAN & CPE - CPE:擺在用戶家裡的; 能不能在上面種 k8s ?讓客戶可以訂閱租用特定功能,不用license控制而是跑network function - SD-WAN: multiple path, 可做 failover, link aggregation... - 利用 cloud native 技術達成以往不能做的服務 - Universal CPE(如類openstack,可隨時安裝各種VNF ## Data center ### Microsoft SONiC - open source - 可玩 L2 / L3 feature,功能全部 container 化,各種docker compose - 可形成新的 feature-based business model - 既然是 docker compose,能不能用 k8s 管? - 一個 k8s 跑整個 datacenter 或數個 rack - 用軟體分配哪些設備要跑哪些 network function ## 結語 cloud native 技術已經往網路延伸,讓網路更好維運

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