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這 華為 S5720H系列 代表專為企業園區核心網路和分散式網路設計的強大千兆交換器系列。它基於華為 VRP V200 作業系統，融合了高轉送效能、PoE+ 功能、豐富的連接埠選項和先進的可程式性。
這 S5720H 系列可滿足嚴苛的網路要求 - 支援高達 1,150 W 的乙太網路供電、廣泛的路由功能和智慧堆疊支援（iStack 和 SVF）。
無論部署為園區核心或高密度存取匯聚交換機， S5720H 為傳統企業交換器提供了一個有效且經濟高效的替代方案。
概述
華為發布 S5720H系列 2014 年，作為早期 S5700 型號，具有以下特點：
- 千兆和 10 GE 連接：最多 48 個 GE 連接埠加上四個 10 GE SFP+ 上行連結。
- 高 PoE+ 預算：最高可達約 600–1,150 W，涵蓋密集的 AP 部署。
- 堆疊能力：iStack（最多 9 個單元）和 SVF Client 部署，簡化管理。
- 千兆效能：轉發速率高達192 Mpps。
- 第 2/3 層協定：OSPF、BGP、RIP、VRRP、ACL、多播、IPv6 和安全功能。
- SDN和可程式支援：相容於華為智慧控制器或CloudEngine控制器，實現現代網路自動化。
技術規格比較
| 特徵 | S5720H 亮點 |
| 交換容量 | 598 Gbps背板 |
| 轉送率 | 高達~192 Mpps |
| 千兆埠 | 最多 48 GE (RJ-45) |
| 10 GE上行鏈路 | 4×10 GE SFP+ |
| PoE+ 功能 | 型號支援 600 W – 1,150 W 預算 |
| 堆疊支援 | iStack（最多9個成員）、SVF客戶端 |
| 第 3 層功能 | OSPF、BGP4+/ECMP、RIP、IPv6、VRRP |
| 安全與服務品質 | 802.1X、ARP/DHCP 偵聽、ACL、QoS、RMON |
| SDN & O&M | 可程式VRP、華為iMaster、雲端管理 |
| 電源冗餘 | 雙 AC/DC PSU 選項 |
模型範例
| 模型 | 連接埠 | 上行鏈路 | PoE 預算 | iStack/SVF | 轉發 |
| S5720-56C-PWR-HI-AC | 48 GE + 4×10GE SFP+ | 雙交流電源 | ~1,150 瓦 PoE+ | 是的 | ~192 Mpps |
| S5720-56C-HI-AC | 48 GE + 4×10GE SFP+ | 單交流電源 | 600 瓦 PoE+ | 是的 | ~168 Mpps |
| S5720-32C-HI-24S‑交流電 | 32 GE + 24×SFP GE + 4×10GE | 擴充插槽 | 1,150 瓦 PoE+ | 是的 | ~176 Mpps |
關鍵見解：
- 所有型號均具有高端口密度和強大的上行鏈路容量。
- 高 PoE 功率模型以 48 個 GE 連接埠和完整的 PoE+ 預算為中心。
- 模組化配置允許靈活擴展以適應不同的網路設定。
主要特徵
-
具有上行鏈路靈活性的高密度接入
– 支援 RJ-45 和千兆 SFP 上行鏈路，非常適合校園或資料中心邊緣層。 -
豐富的 PoE+ 支持
– 提供高達 1,150 W 的功率，這對於在大型部署中為 Wi-Fi 6 AP、VoIP 電話和 IP 攝影機供電至關重要。 -
強大的第 3 層和路由功能
– 支援 OSPF、BGP4+、ECMP、IPv6、VRRP 和多重廣播，簡化校園網路中的複雜路由。 -
可靠的堆疊和基於結構的管理
– iStack 和 SVF 支援確保簡化設備管理和快速故障復原。 -
進階安全性和 QoS
– 支援 802.1X、ACL、DHCP/ARP 偵聽、速率限制和流量優先權。 -
SDN和可程式功能
– 相容於華為控制器，實現動態流量控制和基於策略的配置。 -
電力彈性
– 雙 AC/DC 熱插拔電源可實現高可用性和容錯能力。
部署場景
| 設想 | 推薦型號 | 好處 |
| 園區核心/分佈交換機 | S5720-56C-HI | 高吞吐量、冗餘電源、核心級路由 |
| 高密度PoE接入層 | S5720-56C-PWR-HI-AC | 密集 AP 環境中功率高達 1,150 W |
| 校園聚合 | S5720-32C-HI-AC | 模組化上行鏈路和完整的第 3 層支持 |
| 獨立企業接入交換機 | S5720-56C-HI-AC | 小巧、安全、高效的 PoE+ 解決方案 |
最佳實踐：
- 保持 PoE 預算有 25% 的餘裕。
- 使用 iStack 進行堆疊並規劃備份連結以實現彈性。
- 使用 VRRP 和冗餘上行鏈路進行核心部署保護。
部署建議
- 仔細規劃 PoE：為 AP 或攝影機的預期耗電量增加 20–30% 的緩衝。
- 啟用冗餘：採用VRRP和雙上行鏈路設計。
- 堆疊/製造網絡：部署 iStack 或 SVF，實現輕鬆管理和彈性。
- 參與可程式工作流程：採用華為iMaster或同等產品進行SDN控制。
- 維護作業系統更新：採用VRP V200或更新的韌體，並遵循華為發布的建議。
常見問題部分
問題 1：是什麼讓 S5720H系列適合校園核心嗎？
一個： 憑藉 598 Gbps 背板、192 Mpps 轉發、雙電源和完整的第 3 層支持，它為校園主幹網提供了企業級性能。
問題2：它可以提供多少PoE+功率？
一個： 根據型號，PoE 功能 S5720H 單元提供 600 W 至 1,150 W 的總預算。
Q3.可以參與堆疊或布料嗎？
一個： 是的。最多 9 台設備可以透過 iStack 堆疊並作為 SVF 用戶端運行，從而簡化管理和實現冗餘。
Q4. 它支援SDN嗎？
一個： 是的——可透過 VRP 編程，並與華為的 iMaster 或控制器平台相容，實現動態流和策略控制。
Q5. 支援哪些第 3 層協定？
一個： OSPF、BGP4+、RIP、VRRP、ECMP、IPv6、多重播送（PIM-SM）和全面的路由策略。
Q6. 安全性和可靠性如何 S5720H？
一個： 它包括 802.1X、ACL、DHCP/ARP 偵聽、彈性風扇和 PSU 設計以及強大的文件和支援。
Q7. 價格方面與思科相比如何？
一個： 華為的 S5720H 通常以低約 30–40% 的成本提供同等的企業級功能。
結論
這 華為 S5720H系列 該產品是企業園區核心網路和高密度 PoE 部署的理想之選，功能強大、高效且功能豐富。它具有與領先供應商相當的性能、高 PoE 預算、豐富的三層協議和 SDN 功能，能夠以顯著降低的成本提供未來導向的解決方案。
無論您需要核心層、匯聚層或是接取層交換機， S5720H 提供靈活性、強大功能和可擴充性。對於決策者來說，首先要審查連接埠和 PoE 需求，評估需要堆疊的設備數量，並在實際環境中進行測試，以充分了解其優勢。 S5720H系列是現代校園基礎設施值得信賴的投資。
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