Server Load Balancer(SLB)_支援4層負載均衡與7層反向代理

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Server Load Balancer Play Video

阿里雲負載均衡通過流量分發來提升應用系統的服務能力與可用性，包含面向7層（HTTP/HTTPS/QUIC）的應用型負載均衡ALB和麵向4層（TCP/UDP）的傳統型負載均衡CLB。

建立 ALB 實例建立 CLB 實例 ALB資源套件聯絡銷售團隊

概要
SLB 類型與定價
產品特性
應用場景
客戶
產品檔案

概要

概要
SLB 類型與定價
產品特性
應用場景
客戶
產品檔案

超強性能超大彈性
覆蓋全球穩定可靠

阿里雲 Server Load Balancer (SLB) 提供高效能負載均衡服務，專為 4 層 Classic Load Balancer (CLB) 而設，最高支援 10 萬 QPS，並以阿里雲 NFV 2.0 平台為基礎，建構全新 Application Load Balancer (ALB)，最高支援 100 萬 QPS。

Server Load Balancer (SLB) 除了具備超高單實例性能，亦提供自動 Auto Scaling 能力，可根據業務規模大小彈性擴縮資源，過程靈活簡單，有助降低營運維修的複雜程度。

安全可靠

阿里雲 Server Load Balancer (SLB) 提供四級高度可用災難修復能力，CLB/ALB 均預設支援 Anti-DDoS 安全防護功能；其中，ALB 更可從主控台一鍵整合 WAF 應用程式層級安全防護功能，為業務安全保駕護航

協定豐富

阿里雲 Server Load Balancer (SLB) 支援豐富協定，當中包括 TCP/UDP 等網絡層級協定，另亦支援 HTTP/HTTPS/QUIC/gRPC 等應用程式層級協定。其中，ALB 可提供豐富 7 層高級路由轉發能力

專為雲端原生而設

阿里雲 Server Load Balancer (SLB) 的兩種產品類型均支援雲端原生網絡；其中，ALB 更與 ACK/SAE/K8S 等深度整合，乃阿里雲官方雲端原生 Ingress 網關

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Server Load Balancer 規格

LB 類型	Application Load Balancer (ALB)	Classic Load Balancer (CLB)
產品定位	強勁 7 層處理能力與豐富高級路由功能聚焦 HTTP、HTTPS 與 QUIC 應用程式層級協定專為應用程式交付而設	強勁 4 層處理能力支援 TCP/UTP/HTTP/HTTPS 等協定專為網絡交付而設
產品效能	以 NFV 虛擬平台為基礎單實例支援 100 萬 QPS	以物理機器架構為基礎連接數量高達 500 萬
營運維修能力	自動彈性；處理能力隨業務峰值自動伸縮	按規格銷售；須預估業務峰值
雲端原生支援	雲端原生 Ingress 網關，支援流量拆分、鏡像、灰度發佈及藍綠測試	支援雲端原生業務場景
典型應用場景	互聯網應用程式 7 層高效能自動彈性場景影音應用程式大流量、低延時場景雲端原生應用程式「金絲雀」藍綠發佈場景	網站/系統 4 層流量分發場景高度可靠高並發、高效能網絡分流場景同城雙閥/跨地域災難修復場景
定價	ALB定價說明 >	CLB定價說明 >
立即購買	建立 ALB 實例	建立 CLB 實例

Server Load Balancer 產品特色

多協定支援

協定支援豐富，滿足多元化應用程式場景

基礎協定

支援包含 TCP 協定和 UDP 協定的四層 Server Load Balancer；支援 HTTP 協定和 HTTPS 協定的七層 Server Load Balancer。

高級協定

支援應用程式傳輸協定 QUIC，對影音/流動互聯網應用程式更友好；支援 GRPC 協定，實現海量微服務之間的高效 API 通訊

多層次災難復原

提供多層次災難復原策略，以及高度可用的保障體驗

健康檢查

定時檢測後端雲端伺服器的運行狀況，一旦偵測到異常，則不會再轉發流量到異常實例，以保證可用性

多可用區

個別地域採用多可用區部署，輕鬆實現同城災難復原

群集部署，工作階段同步

採用群集部署，各部機器之間工作階段同步，從而支援熱升級、機器故障和群集保養，過程對用戶透明

更安全可靠

附設免費基礎安全防護功能，降低安全建設成本，令網絡流程更安心

網絡層級安全防護

四層 Server Load Balancer 支援 DDoS、SYN Flood、UDP Flood、ACK Flood、ICMP Flood、DNS Flood 等攻擊防護功能

應用程式層級安全防護

七層 Server Load Balancer 除了具備四層安全防護功能，亦支援免配置修改，一鍵整合 WAF，令應用程式層級更可靠

證書管理

針對 HTTPS 協定提供集中證書管理系統，滿足用戶對可靠安全傳輸服務的需求

靈活調度策略

多種調度運算法與轉發模式，提升應用程式部署靈活性

調度運算法

支援加權輪詢和最小連接數調度運算法，可讓您根據自身需求選擇相應運算法，藉以分配用戶流量

域名網址轉發

支援根據不同域名和網址進行流量調度，提升應用程式系統靈活性

多種管理途徑與付款方式

根據業務特點靈活選擇實例類型與付款方式，多種管理途徑助您輕鬆操控 Server Load Balancer

豐富定價方式

提供按量計算費用與訂閱方案這兩種不同的結算模式，支援按流量與按固定頻寬兩種方式計算費用

靈活管理方式

可以管理主控台或 OpenAPI 與 SDK 等方式為基礎，建立、配置及管理 Server Load Balancer

應用場景

業務挑戰

影音/遊戲等行業常常面對突發存取的海量流量，後端服務壓力龐大。例如：

· 短片/長影片/直播/在校教育/遊戲等業務中，服務端與用戶端之間的實時大量互動會衍生龐大流量

· 影音業務的峰谷效應明顯，對系統效能、彈性、穩定性和可用性構成挑戰

我們的功能優勢

超高效能實例

阿里雲 NFV 2.0 架構支援，可支撐單實例 100 萬 QPS 性能
超靈活 Auto Scaling

毋須根據業務峰值進行預測，毋須人工調整，按業務流量自動進行 Auto Scaling
應用程式傳輸協定

支援 QUIC 應用程式傳輸協定，可令影片業務更高效流暢，提升首屏開展速度

CDN 服務

可擴展、低成本的加速內容分發服務

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Anti-DDoS

助您自動智能防護 DDoS 攻擊

了解更多

ApsaraDB for Redis

兼容 Redis 協定的全面託管記憶體數據庫

了解更多

業務需求

新型零售與金融業務瞬間萬變，新業務項目上線與存量業務調整頻繁，大型促銷活動更成常態

業務講求網絡即開即用、安全可靠、彈性靈活

另應提供彈性計費模式，以提升業務的總持有成本

我們的功能優勢

即開即用

毋須仰賴硬件採購與部署，即開即用，按需付費，靈活高效
Auto Scaling

毋須根據業務峰值進行預測，毋須人工調整，輕鬆應對大型促銷活動的流量峰值
安全可靠

提供四級高度可用的災難修復功能，並可整合 DDoS 防護與 Cloud Firewall，為業務安全保駕護航

Elastic Compute Service (ECS)

彈性安全的虛擬雲端伺服器，滿足您的一切雲端託管需求

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Web Application Firewall

通過防禦常見網絡應用程式層級攻擊，保障網站安全可用

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Cloud Enterprise Network (CEN)

可快速建構混合雲端及分佈式業務系統的全球網絡

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業務需求

隨著雲端原生技術日漸成熟，互聯網/金融/企業等諸多行業建立全新業務項目時，都會選擇雲端原生部署，又或對現有業務進行雲端原生化改造

使用阿里雲 ACK、SEA 或開源 K8S；雲端原生網絡均須用到 Server Load Balancer

我們的功能優勢

天然雲端原生

與 ACK/SAE/K8S 深度整合，乃阿里雲官方雲端原生 Ingress 網關
API 功能完善

Server Load Balancer 可提供完善的 API 能力，支援 GRPC 協定，實現海量微服務之間的高效 API 通訊

Container Service for Kubernetes (ACK)

提供安全防護/高度可用保障、並可穩定升級的一站式容器服務

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Elastic IP Address

獨立公共網絡 IP 資源，具備靈活管理能力

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NAT Gateway

在 VPC 環境下建構公共網絡流量出入口

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業務需求

跨國企業須將不同地域用戶的存取動作智能調度到相應的業務系統；與此同時，為了降低成本、提升效益，離線 IDC 業務須與雲端業務互通

須建構跨地域或混合雲端多層災難修復架構

我們的功能優勢

全區域支援

智能判斷，提供最佳存取解析地址，讓來訪用戶獲得最快捷、最流暢的體驗
多層次災難復原

SLB 提供跨地域的高度可用性能，實現多可用區級的高度可用目標
簡單易用

與 Cloud Enterprise Network 相輔相成，簡單快速地建構全球多地域網絡，輕鬆打通離線 IDC 與雲端服務界限

Global Accelerator (GA)

涵蓋全球的公共網絡加速服務

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Cloud Enterprise Network (CEN)

Cloud Enterprise Network 提供快速建構混合雲端及分佈式業務系統的全球網絡，協助用戶打造具有企業級規模及通訊能力的雲端網絡

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Object Storage Service (OSS)

加密安全的 Cloud Storage 服務

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產品動態

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"我們善用阿里雲服務，將應用程式、數據庫、網絡及電郵伺服器全都託管在阿里雲可擴展的 ECS 實例上，同時盡享網站流量分發功能 (Server Load Balancer (SLB))。此舉大幅提升了我方解決方案與服務的穩定性、可用性及可靠性，而這一點實在難以透過採用自主管理硬件系統及網絡資源等傳統方式實現。"

【LPAS】了解詳情 >