Description of the problem

When maintaining Huawei OSN3500 equipment products, inquire whether the OSN data class boards support the following features and related protocol standards.

HDLC yes/no

GFP (G.7041/Y.1303) yes/no

X.86 (LAPS) yes/no

MLPPP (BCP) yes/no

GFPoPDH (G.8040) yes/no

VCAT (G.7043) yes/no

LCAS (G.7042) yes/no

Processing

During the communication between the engineer and the customer, it was found that the customer himself had limited understanding of the background of the issue raised, and some of the concepts were ambiguous.

Solution

Huawei OSN3500 devices N1EGT2, N1EFT8, and N1EFT8A are supported by the N1EMS4 and N1EGS4/N3EGS4 single boards of the transmitting class.

GFP (G.7041/Y.1303) , OSN products each data veneer support GFP encapsulation, and is the default encapsulation format.G.7041 and Y.1303 is the number of GFP protocol in ITUT.

X.86 (LAPS) , OSN products are only supported by N1EMS4 and N1EGS4/N3EGS4 single boards.

MLPPP (BCP) is not supported by any single board of OSN products.

GFPoPDH (G.8040), this protocol is a PDH standard and is not supported by any single board of OSN products.

VCAT (G.7043), the VCAT virtual cascade feature is supported in all OSN data boards. However, the G.7043 mentioned by the customer actually specifies how VCAT is implemented in PDH signaling. Therefore, Huawei OSN products support VCAT, but not G.7043.

LCAS (G.7042) is supported by all OSN data boards except N1EGS2.

The above descriptions of features are mainly for OSN products R7 and previous versions, and new features may be developed for single boards after R9.

Recommendations and Summary

Huawei OSN3500 equipment products are positioned as multi-service transmission platforms. Some customers are concerned about the realization of data services on PDH. Relevant maintenance engineers also need to learn PDH background knowledge.

The related technical information in this chapter and the troubleshooting process of SDH equipment are collected and organized by Shenzhen Optical Transmission Network Technology Company Limited ( www.opticaltrans.com), and please retain them! Our company specializes in Huawei SDH optical transmission equipment, SDH transmission equipment sales.