Product series of the WDM product family


Huawei WDM/OTN series end-to-end intelligent optical transport platforms are applicable to the backbone core layer, metro core layer, metro convergence layer, and metro edge access layer. These series platforms support universal switching and flexible grooming for OTN, SDH, and packet services, coherent technology-based, large-capacity, and ultra-long 100G and 40G transmission, WSS-based dynamic optical-layer grooming at ROADM sites, and the ASON/GMPLS control plane. Facilitated by these platforms, carriers can enjoy more flexible transmission, quicker service provisioning, more reliable network, and easier maintenance, therefore ensuring better services and generating more profits.

OTN-based new-generation WDM products have the following product series:

OptiX OSN 1800: It is mainly applicable to the metro edge layer, including the metro convergence layer and metro access layer. On small-capacity networks, it is also applicable to the core layer.

OptiX OSN 3800: It is mainly applicable to the metro convergence layer and metro access layer.

OptiX OSN 6800: It is applicable to long-haul backbone networks, regional backbone networks, local networks, the metro convergence layer, and the metro core layer.

OptiX OSN 8800: It is mainly applicable to the backbone core layer, and is also applicable to the metro core layer and metro convergence layer.

OptiX OSN 9800: It is developed to satisfy the requirements for ultra large capacities and bandwidth.

Other related questions:
Whether SSEM2LWC1 on BWS 1600G supports 1:N protection of OCP boards
Yes. SSE2LWC supports 1:N protection of OCP boards.

Whether SS bit mismatch in AU pointers during WDM product interconnection causes an AU_LOP alarm
1. OTU boards on WDM equipment, except OCU, transparently transmit SS bits without detection. 2. OCU boards process SS bits. The SS bit should be set to 10. When the SS bit is set to 00, 01, or 11, AU_AIS is inserted and services are interrupted. In this scenario, no alarm is reported on the board (because the AU_AIS alarm is not detected on the WDM side of the board.) During a test, the Agilent OmniBer 817 meter is used to transmit STM-16 data. When the Payload option is Framed or Structed and the column in the overhead setup is set to ALL, you can change the H1 SS bit. When the SS bit is set to 00, 01, or 11, an AU_AIS, PDH, or LOF alarm is reported. When it is set to 10, no abnormality occurs. This issue is related to the chip processing mode. OCU boards use the same chip and therefore have the issue.

Description on the GCC byte mode of NG WDM products
Question: In the OTN architecture, the ESC mode is adopted. Sometimes, the GCC byte mode needs to be set using the :cm-set-fiberport command. The last parameter of this command indicates the channel rate. 13 denotes three-byte GCC0, 14 denotes the GCC12_9 byte, and 15 denotes the GCC12_18 byte. How are three-byte GCC0, GCC12_9, and GCC_18 calculated? Root cause: None Answer: 1. The channel rate is an equivalent rate. Three-byte GCC0 indicates that the bandwidth provided by GCC0 is 3 x 64K, and GCC12_9 indicates that the total bandwidth provided by GCC1 and GCC2 is 9 x 64K. In the OTN architecture, GCC0 is of two bytes, and the frame structure is always 4 x 4080 bytes. 2. At the 2.5G rate, the bandwidth of GCC0 is calculated using the following formulas: Frame frequency = 2.5G/(4 x 4080 x 8) Bandwidth of GCC0 = 2x frame frequency x 8 Therefore, the approximate bandwidth is as follows: 320K = 5 x 64K Likewise, at the 5G and 10G rates, the approximate bandwidths are 10 x 64K and 20 x 64K respectively. (The length of an OTN frame is fixed, whereas the frame frequency varies.) Due to the limit on CPU channels, the bandwidth provided by GCC0 must be reduced so that the equipment can be used like the previous equipment. That is, GCC0 is used as three bytes only. To be specific, the supervisory bandwidth provided by GCC0 is 3 x 64K. 3. According to the preceding method, at the 2.5G rate, GCC1 and GCC2 together provide 10 x 64K bandwidth. That is, GCC1 and GCC2 are used as nine bytes. GCC1 and GCC2, which are always bound together when used, provide 20 x 64K bandwidth at the 5G rate and 40 x 64K bandwidth at the 10G rate. Suggestion and conclusion: The OTN-framed OTU board supports DCC types GCC0, GCC12_9, and GCC12_18. The OTN 2.5G board supports GCC0 and GCC12_9, and the OTN 5G and OTN 10G boards support GCC0 and GCC12_18.

E2E service management solution provided by Huawei WDM products
Huawei WDM products use diversified ITU-T G.709-compliant OTN overheads to achieve transparent transmission of client services, and provide the forward error correction (FEC) capability. During network runtime, WDM products work with the NMS to implement E2E service monitoring and management, facilitating fault diagnosis.

Products included in the IT Product Graph Library
Products in the IT Product Graph Library include: Products in the IT Product Graph Library include storage, servers, cabinets, and Fibre Channel switches. Storage products include: T series, Dorado, 18000 series, 9000, and 5300 V3/5500 V3/5600 V3/5800 V3/6800 V3/6900 V3. Server products include: RH series, E9000, E6000, and X8000. In addition, common cabinets and SNS Fibre Channel switches are also included. With the launch of new products, the products in the IT Product Graph Library also change accordingly. The latest contents displayed on the page prevail.

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