VIAVI ONT QFLEX and 400G Module FlexE Software Option
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1 Data Sheet VIAVI ONT QFLEX and 400G Module FlexE Software Option VIAVI Solutions Launch FlexE products faster. This module helps you ensure ecosystem interoperability, deliver reliable performance, and accelerate product validation throughput. FlexE is a homogenous way for Network Managers to deliver flexible high-speed Ethernet services and enable software defined networks (SDN). The ONT FlexE test application allows thorough design and verification testing of the logic including FlexE Calendar Management, Overhead protocol functions and FlexE Clients configuration and performance. Benefits & Features y QSFP28 test I/F y 4 clients over 4 x 100GBASE-R PHY yclients include 10GE, 40GE, 50GE, 100GE yport-to-port skew y Calendar configuration for FlexE Bonding, sub-rate and channelization client setup y Alarms & Errors to test i.e. FlexE Overhead Frame and Overhead Multi-frame lock yflexe Overhead Manipulation yclient/ rate utilization and QoS Shim Shim FlexE CFP8 QFLEX Data Module. Order Number 3076/92.65
2 FlexE Test Application FlexE is an Implementation Agreement defined by the Optical Internetworking Forum (OIF) to address the need for more flexible and scalable bandwidth serving high speed Ethernet rates. FlexE evolved out of specialized solutions like Link Aggregation (LAG) and Multi-Link Gearbox (MLG). It provides functionality for Channelization, Bonding and Subrating applications to connect one or more Ethernet s using standard Ethernet PMDs between routers. Routers can be connected directly or through transport gear as illustrated in the three examples in Figure 1. Transport Network 3 Client 100G 200G Router 3 x 100GBASE-R PHY Low skew FlexE Terminated 300G FlexE clients carried over transport network Channelization 1 Bonding 50G 50G 200G 2 Sub-Rate FlexE Aware 25G 125G Router 10 out of 2 x 20 as unavailable slots 2 x 100G FlexE Section Management Channel Sub-rate 150G High skew All PHYs of FlexE group over same fiber route 25G 125G Discard unavailable slots FlexE Unaware 25G 150G Router 2 x 100G FlexE Calendar with 5 unused slots 2x100G High skew All PHYs of FlexE group over same fiber route 25G 150G Figure 1. Examples for FlexE use cases include Bonding, Channelization and Sub-Rating with Transport Network Equipment in FlexE Terminate, FlexE Aware and FlexE Unaware operation modes. 2 FlexE Software Option for ONT QFLEX and 400G Module
3 In essence, FlexE dissociates the Ethernet on the client side from the actual physical interface as illustrated in Figure 2 The following llustration shows clients can be mapped across multiple PHYs through the 20 slots in subcalendar per PHY. Client 1 Client 2 Client z 64B/66B 64B/66B 64B/66B PCS PMA PMD : Calendar, Sync, FlexE PHY Map Sub calendar Sub calendar PCS PCS PCS PMA PMA PMA PMD 100GBASE-R PMD 100GBASE-R PMD 100GBASE-R FlexE Group Figure 2. Enhanced Ethernet Layer model with FlexE is an important building block for SDN networks as it allows network managers to adjust the network configuration by adding or removing clients from the service for typical use cases as shown in table 3. Segment Use Case Benefit Operators Flexible Ethernet Services Enables SDN with lower cost per bit and new attractive Services Data Center Interconnect (DCI) Carrier Ethernet Router to high-speed optical Transport networks Full rate utlization of existing transport network Intra-Data Center Using large pipes Cost efficiency. Using available 100GE PMDs. Standardization independent Table 3. Typical FlexE use cases 3 FlexE Software Option for ONT QFLEX and 400G Module
4 IC vendors, network equipment manufactures and network operators need a test environment to validate and verify FlexE protocol mechanisms that span across multiple clients and PHYs. Table 4 summarizes key ONT FlexE test functions. FlexE Test Case Calendar Client Setup RX PHY and Calendar Map FlexE Alarms & Errors FlexE Overhead Manipulation FlexE Management Channel Port Skew 64B/66B Reconciliation What Needs to be tested? Setup of multiple clients with different client sizes to support applications for bonding, channelization and sub-rating. PHY Map for entire FlexE Overhead Multi-frame and Sub-calendar map per time slot and associated client number VIAVI ONT test set provides unique Alarm & Error tests that help analyze FlexE Overhead logic and interoperability between network elements User manipulation of any bit in the FlexE Overhead and Overhead Multi-frame to provoke unusual configuration, device and network conditions User defined bit loading in the Section-to-Section and Shim-to-Shim Management Channels Skew between PHYs because too-high PHY skew might cause payload not to be reconstructable 64B/66B Block analysis per FlexE client. Including Local and Remote Fault / IP FlexE client rate, utilization, QoS, errors Table 4. ONT FlexE key test functions 4 FlexE Software Option for ONT QFLEX and 400G Module
5 Alarms & Errors The ONT FlexE test application introduces specific FlexE alarms and errors as listed in table 5. Local Fault (LF) as defined in the OIF FlexE implementation agreement is presented on the ONT 64B/66B layer together with Remote Fault. Test Metric Type Use Case LOGA (Loss of Group Alignment) Alarm Indication that payload cannot be reconstructed Group Numbers Inconsistent Alarm Accepted FlexE group numbers are not identical across the group. PHY Numbers Inconsistent Alarm Accepted PHY numbers do not match the accepted PHY map on one or more PHYs PHY Maps Inconsistent Alarm Accepted PHY maps are not identical across the group. Calendar in Use Inconsistent Alarm Accepted Calendar in use does not match across the group. LOF (Loss of FlexE Overhead Frame) Alarm Lock to FlexE Overhead frame LOMF (Loss of FlexE Overhead Multi-frame) Alarm Lock to FlexE Overhead Multi-frame RPF (Remote PHY Fault) Alarm Inform far-end shim of locally detected failure of the PHY GNM (Group Number Mismatch) Configuration Alarm Accepted group number does not match the RX configured value. PNM (PHY Number Mismatch) Configuration Alarm Accepted PHY number does not match the RX configured value PMAPM (PHY Map Mismatch) Configuration Alarm Accepted PHY map does not match the enabled PHYs. CM (Calendar Mismatch) Configuration Alarm TX/RX calendars in use don t match CCM (Calendar Configuration Mismatch) Configuration Alarm Accepted calendar of the Accepted calendar in use is different from the configured RX calendar of the RX calendar in use. OH Block #1 Error Error Overhead anchor block error CRC-16 Error Error CRC-16 to protect FlexE overhead. Only PHYs from overhead frames with good CRC are accepted. C-Bit Error Error 3 C-Bit in majority vote define the Calendar in Use. Table 5. ONT FlexE key test functions 5 FlexE Software Option for ONT QFLEX and 400G Module
6 Figure 5. ONT FlexE applications with user configurable client setup into FlexE Calendar Figure 6. ONT FlexE RX Status Overview with key Alarms and Errors 6 FlexE Software Option for ONT QFLEX and 400G Module
7 Figure 7. The ONT FlexE applications allows user defined Overhead bit configuration Figure 8. FlexE Port-to-Port Skew Test 7 FlexE Software Option for ONT QFLEX and 400G Module
8 Figure G CFP8 Module includes 400GE/PHY testing and optional FlexE and/or FlexO testing using the QSFP28 ports. Order number 3076/92.62 Figure 11. CFP8 Data Module includes CFP8 slot and 400GE Test Application SW. QSFP28 Ports support optional FlexE or FlexO testing. Order number 3076/92.64 Figure 12. QFLEX Module with QSFP28 ports for optional FlexE and FlexO testing. Order number 3076/ FlexE Software Option for ONT QFLEX and 400G Module
9 Software Options Part Number Description 3076/97.50 FlexE 100GBASE-R PHY with clients up to 100GE 3076/97.51 FlexE FEC Validation 3076/97.60 OTN FlexO OTUCn Bulk 3076/97.62 OTN FlexO FEC Validation 3076/ GE 3076/97.30 CFP8 Hardware Validation 3076/97.31 CFP8 Advanced Error Analysis 3076/97.32 CFP8 Dynamic Skew Generation 3076/ G Ethernet FEC Validation Mainframes ONT-600 Mainframe Types Part Number Slots Controller Type 3076/01 ONT-603D 3 with display and high-end controller 3076/02 ONT-606H 3 with high end controller 3076/03 ONT-603B 3 3 with basic controller 3076/04 ONT-606D 6 with display and high-end controller 3076/05 ONT-606H 6 with high end controller 3076/06 ONT-606B 6 with basic controller 3076/07 ONT-612H 12 with high end controller 3076/08 ONT-612B 12 with basic controller 9 FlexE Software Option for ONT QFLEX and 400G Module
10 Ordering Guide The following Test Modules support FlexE testing. They all occupy 3 slots within an ONT mainframe. Part Number Description Comment Test I/F 3076/ G CFP8 PHY MODULE 3076/ G CFP8 DATA MODULE 3076/92.65 CFP8 QFLEX DATA MODULE 3076/92.63 QFLEX MODULE 400G Module with CFP8 slot, supports optional Physical Layer testing, full support of optional electrical interface, optional FlexE/O. Already includes 400GE application SW. 400G Module with CFP8 and QSFP28 slots, optional FlexE/O. Already includes 400GE application SW Module with CFP8 slot and QSFP28 slots. No application SW included FlexEthernet/Flex OTN Module with QSFP28 slots. No application SW included CFP8 CFP8, QSFP28 CFP8, QSFP28 QSFP28 VIAVI Solutions Contact Us GO VIAVI ( ) To reach the VIAVI office nearest you, visit viavisolutions.com/contacts VIAVI Solutions Inc. Product specifications and descriptions in this document are subject to change without notice. ontflexe-ds-opt-nse-ae viavisolutions.com
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