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An SD‐WAN has several advantages over a traditional WAN.重點內容
✓ Simplified WAN:
- Rapid deployment and automation
- Quality‐of‐Service (QoS) that adjusts with automated link and capacity monitoring
- Scalable secure communications over any transport
- Management and orchestration that can be cloud delivered or on‐premise
✓精簡的 WAN :
- 自動化的快速部署
- 感知網絡狀態，實現 QoS 動態調整
- 可伸縮的安全傳輸層設計
- 部署及管理過程可實現雲端交付
✓ Efficient WAN utilization:
- Unification of all available WAN links to provide aggregate capacity
- Distributed, cloud‐based services with simple policy‐based insertion
✓ 高效的網絡利用率
- 可以複用所有 WAN 鏈路，實現帶寬倍增
- 新增網絡服務方便，支持分佈式架構
✓ Assured application performance:
- Forwarding based on real‐time evaluation of WAN characteristics, including quality and capacity of the link
- Dynamic reactions to meet business policy based on performance or security criteria
- Active‐Active support to provide subsecond reaction to WAN blackouts or brownouts so that application flow can be continued
✓ 高性能服務
- 實時監測 WAN 鏈路質量，動態優化包轉發路徑
- 閉環狀態反饋，滿足業務級別的性能和安全要求
- 提供亞秒級別的 WAN 鏈路容災切換，完全不影響用戶應用
✓ Highly available WAN:
- A physical transport‐independent overlay for managing user connectivity and experience to different applications
- Greater flexibility in choosing and changing service providers
- Faster provisioning times and automated configurations
- Delivery of performance and security for on‐premise and cloud applications. No backhaul performance penalty
✓ 高可靠服務
- 爲用戶應用提供，獨立於底層傳輸層的網絡性能保證
- 用戶可以隨意切換網絡供應商
- 平臺配置簡單快速
- 消除了 backhaul 性能損耗，不論是雲端應用或者本地應用性能都得以保證
✓ MSP ready:
- Central management and troubleshooting of complex customer environments
- MSPs move from connectivity play to service delivery offerings
- Elimination of expensive truck rolls and lengthy deployment cycles
✓ Manage Service Provider 託管服務友好
- 爲複雜的用戶環境，提供集中化管理和故障排查
- 實現持續交付的服務
- 縮短部署週期