在開放硬體上打造的完整都會匯聚路由器。
The metro aggregation router carries MEF Carrier Ethernet, E-LINE, E-LAN, E-TREE, and E-Access, across an EVPN metro ring and hands service traffic up to the IP core. IP Infusion delivers it complete: validated open hardware from Edgecore or UfiSpace, OcNOS-SP pre-loaded, supported under one contract, with a self-protecting ring and a measured per-service SLA.
運行 OcNOS-SP 都會匯聚的電信業者。
區域型電信業者已將都會匯聚與骨幹路由移轉至運行 OcNOS-SP 的完整開放路由器,並在整個轉換期間與既有網路互通。它於 60 多個國家、超過 600 個電信業者網路中投入生產運行。
"IP Infusion's OcNOS software with Edgecore hardware were selected for providing a compelling set of features to accommodate our rapid growth. OcNOS provides an easy and common platform across different use cases, with an upgrade path from existing solutions." Werner Rades,AnschlussWerk 執行長
一台開放路由器匯聚都會環網。
您可在同一台路由器上運行環路中的兩個匯聚節點,讓都會環路、Carrier Ethernet 服務與傳輸全部納入單一維運模式之下。EVPN 與 SR-MPLS 的深入說明請見 EVPN and SR-MPLS; the ring hands service traffic up to the IP 核心供應商邊緣.

開啟向量檢視,將游標移至各節點以查看平台與服務細節。
都會節點以單一映像檔擔任四種角色。
您只需為一台設備授權並規劃容量以勝任四種工作,而非備置四台。單一 OcNOS-SP 映像即可擔任匯聚路由器、Layer 3 交換器、EVPN 環路節點與核心上行鏈路,各依角色授權與規劃容量,因此該節點無需第二台設備即可承擔新角色。
Aggregation router
每一個接取、OLT、CPE 與 cell-site 交接都落在同一台路由器上,並透過高密度的上行往上游傳送 100G and 400G interfaces to the ring and the core.
Layer 3 switch
Routes with BGP, OSPF, and IS-IS and switches Layer 2, with VRRP and MLAG multihoming for the access and business handoff.
EVPN metro 環路節點
運行中的服務同時連接至兩個環網節點,因此單一節點失效絕不會中斷服務。 EVPN all-active 多歸屬 and a G.8032 ring instance keep one protected path around the ring.
Core uplink
將服務流量交接給供應商邊緣,透過 400G-capable interface, so metro and core run one transport model.
MEF Carrier Ethernet, delivered over the EVPN ring.
The operator sells four kinds of Carrier Ethernet: private line, multipoint LAN, rooted broadcast, and wholesale handoff. This router delivers all four as MEF services over EVPN and SR-MPLS on the metro ring, so one box carries the whole service catalog.
| MEF service | Connectivity | EVPN delivery | Typical use |
|---|---|---|---|
| E-LINE (EPL, EVPL) | Point to point | EVPN-MPLS 或 VxLAN E-LINE,single 或 all-active 多歸屬 | 專屬企業專線;點對點回傳。 |
| E-LAN (EP-LAN, EVP-LAN) | 多點對多點 | EVPN E-LAN,single 或 all-active 多歸屬 | 適用於企業或批發的多站點第 2 層。 |
| E-TREE (rooted multipoint) | Hub and spoke | EVPN E-TREE, MPLS and VxLAN | 廣播、加盟或中樞饋送式的分送。 |
| E-Access (OVC handoff) | 電信業者對電信業者 | 透過 EVPN 的批發 Ethernet 存取交遞 | 對另一家業者的批發 Ethernet 存取。 |
MEF and MEF are marks of MEF Forum. OcNOS-SP delivers Carrier Ethernet aligned with the MEF service model.
都會環網如何在斷線時維持運作。
光纖斷裂或節點失效絕不應中斷運行中的客戶服務,在此環網上確實不會。G.8032 繞過斷點重繞環網,EVPN 全主動多歸屬在節點失效時維持服務不中斷,TI-LFA 將 SR-MPLS 流量轉移至預先計算的備援路徑,並由 BFD 在鏈路中斷的瞬間觸發切換。
Ethernet 環路保護
環網在穩態下保持無迴圈,並在鏈路中斷的瞬間自行重新導向。一個 G.8032 ring instance holds one ring port blocked until a break, then unblocks it to keep one protected path, and OcNOS-SP runs G.8032 over LAG and interworks a G.8032 major ring with MLAG.
全主動多歸屬
EVPN all-active 多歸屬 attaches a service to two ring nodes at once, so the service stays up through a node loss. See the delivery detail on the EVPN technology page →
50ms 以內的快速重新導向
SR-MPLS 流量會在 IS-IS 完成重新收斂之前,於 50ms 內切換至備援路徑。 TI-LFA precomputes a loop-free SR backup for every destination to make that switch immediate. See SR-MPLS →
每項服務都量測自己的 SLA。
Carrier Ethernet 是依 SLA 銷售的,而這台路由器會量測環網上的每項服務以資佐證。Y.1731 逐項服務回報延遲與遺失,因此電信業者能將其承諾的確切數值交付給每位客戶。
每項服務的 frame delay
DMM and DMR measure two-way frame delay and delay variation on each E-LINE, E-LAN, and E-TREE, over EVPN-MPLS and VPLS, so the operator sees the delay each service delivers.
每項服務的 frame loss
LMM/LMR and SLM/SLR measure frame loss per service, over a Layer 2 bridge and over VPLS, so packet loss is reported against the SLA.
Y.1731 也會傳遞 Ethernet Bandwidth Notification(EBN), so the ring signals available bandwidth to the service edge as conditions change. Delay, loss, and bandwidth notification run on the same Y.1731 service OAM the ring already carries.
匯聚路由器與 Layer 3 交換器合於一台設備。
一台設備兼任兩種工作,因此不必再備料、佈線與購買授權第二台交換器。它以 Layer 3 交換器的角色終結接取與商用交遞,再以匯聚路由器的角色向上承載 MPLS、SR-MPLS 與 MEF 服務,並依自身的汰換週期擴展出新的角色。
| 角色 | Validated router | 晶片與容量 | 它為何適合此角色 |
|---|---|---|---|
| 都會匯聚/L3 交換器 | Broadcom Qumran2c, 4.8 Tbps, 48×100G + 8×400G, deep buffer | 深緩衝以吸收微突發,並為 metro 提供 400G coherent 上行,具備多家廠商驗證的互通性。Routed-optical 上行細節請見 IP over DWDM. | |
| 核心上行目標 | 14.4 Tbps core | 環網上行連接至 14.4 Tbps 核心。供應商邊緣與核心角色位於 IP core spoke. |
IP Infusion 交付都會匯聚路由器,採用 43 validated platforms from Edgecore and UfiSpace, each lab-qualified with OcNOS-SP pre-loaded. See every validated platform in the 硬體相容性清單,並於下列將功能對應至硬體,即 功能矩陣.
何時適合採用 S9600-56DX
- 都會環網匯聚 with MEF services across two or more nodes.
- 400G uplink to the core, or a routed-optical uplink, see IP over DWDM.
- FTTx 與 OLT 匯聚 upstream of the access node, see broadband access.
- 基地台時脈同步 is a separate role, see mobile transport.
受保護環網上的 E-LINE 服務。
A metro E-LINE rides EVPN VPWS over the SR-MPLS underlay while a G.8032 ring protects the ring ports and a Y.1731 MEP reports the service SLA. The block below uses the real OcNOS-SP ERPS, EVPN VPWS, and Y.1731 command families with placeholder values, see the guides for the exact per-node syntax.
! 1. G.8032 (ERPS) ring across the two ring ports
g8032 ring METRO-RING
east-interface xe1
west-interface xe2
! ERP instance, control VLAN, and RPL role per the ERPS guide
! 2. EVPN VPWS (E-Line) on a mac vrf, carried over the SR-MPLS underlay
mac vrf E-LINE-100
rd <router-id>:100
route-target both <asn>:100
evpn mpls id <local-id> xconnect target-mpls-id <remote-id> host-reachability-protocol evpn-bgp E-LINE-100
! 3. Bind the access handoff (interface xe10, vlan 100) to E-LINE-100 per the EVPN VPWS guide
! 4. Y.1731 up-MEP on the service reports delay and loss
! exact ethernet cfm mep form, plus delay-measurement (DMM) and
! loss-measurement (SLM) profiles, per the OcNOS-SP Y.1731 guide
每一步驟的作用
- The
g8032 ringwith an east and west interface protects the two ring ports, so the ring keeps one loop-free protected path. - The
mac vrfplusevpn mpls id ... xconnect target-mpls-id ...creates the E-LINE (EVPN VPWS) instance and carries it over the SR-MPLS underlay around the ring. - The access handoff binds to the E-LINE service on the access-facing port and VLAN.
- The Y.1731
ethernet cfm mep, with delay (DMM) and loss (SLM) measurement, reports the per-service SLA, so the operator measures the service it sold.
Representative OcNOS-SP configuration; angle-bracket values are placeholders. Use the OcNOS-SP ERPS, EVPN, and Y.1731 configuration guides for the exact commands and options for your release, documentation.ipinfusion.com.
一次轉換一個環路節點。
在您逐一將節點轉換至完整的 OcNOS-SP 路由器時,都會環網仍持續承載服務。以標準為基礎的 EVPN、SR-MPLS 與 MEF Carrier Ethernet,讓新節點在轉換過程中得以與既有網路互通。
與既有的都會網路互通
OcNOS-SP 使用以標準為基礎的 EVPN, SR-MPLS, BGP, IS-IS, and MEF Carrier Ethernet, so a new node interoperates with installed Cisco, Juniper, and Nokia equipment, and replaces ZTE.
一次轉換一個環路節點
在環路持續承載服務的同時,一次將一個環路節點轉換到完整的開放式路由器。切換維持漸進式進行,每個維護時段一個節點,無需整機汰換。
日後再增添服務與容量
隨著都會網路成長,同一平台可承接新服務與更高容量,因此一個節點會在歷次維護時段中承擔更多部署工作。IP Infusion 在每個階段皆提供路由器支援。
提供 Cisco IOS-XR 至 OcNOS 的 CLI 轉換協助,以加速組態轉換。請參閱 OcNOS-SP 相較於 Cisco comparison for capability and licensing detail.
開放都會匯聚對比專有都會機箱。
對 metro 而言,令人擔心的是開放式路由器承載 Carrier Ethernet 的深度是否比得上專用機箱。它做得到:MEF 服務、EVPN 環路與 per-service SLA 量測全都在其上運行,且電信業者仍能在同一份合約下向多家廠商採購硬體。
| 能力 | OcNOS-SP 都會路由器(開放式) | 專有機箱(Cisco / Juniper / Nokia) |
|---|---|---|
| MEF Carrier Ethernet (E-LINE, E-LAN, E-TREE, E-Access) | ✓ | ✓ |
| 在 MPLS 與 VxLAN 上運行的 EVPN | ✓ details → | ✓ |
| G.8032 環路保護與 EVPN 多歸屬 | ✓ | ✓ |
| 每服務 Y.1731 延遲與遺失 SLA | ✓ | ✓ |
| SR-MPLS 搭配 Flex-Algo 與 TI-LFA | ✓ details → | ✓ |
| 匯聚路由器與 Layer 3 交換器合於單一映像 | ✓ | ✓ |
| 在驗證過的開放通用晶片硬體上運行 | ✓ Edgecore / UfiSpace,43 個平台 | ✓ vendor chassis only |
| 硬體與軟體以各自的週期定價與汰換更新 | ✓ | ✓ bundled |
| 由單一供應商負責硬體、軟體與 RMA | ✓ one support contract | ✓ single vendor |
| 向不只一家硬體供應商採購設備 | ✓ | ✓ |
Cisco、IOS-XR、NCS、Juniper、Junos、ACX、Nokia 與 SR OS 均為各自所有者的商標。IP Infusion 與這些供應商並無隸屬關係,亦不對其背書;本比較反映的是可在下列來源驗證的 OcNOS-SP 能力: 功能矩陣. To replace a proprietary metro, see the OcNOS-SP 相較於 Cisco comparison.
產品規格書與 SR-MPLS 簡介。
OcNOS-SP 規格表與 SR-MPLS 升級簡介,皆可分享給您的團隊。填寫簡短表單後即可立即下載 PDF。
關於都會匯聚路由器的問題。
在您自己的硬體上部署都會路由器。
下載 OcNOS VM 並在你的測試環境上建置 EVPN 環路,或與我們聯絡以為你的網路規劃 metro 匯聚路由器。