Description of the problem

When a customer maintains Huawei OSN3500 products, it inquires whether 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

Huawei OSN3500 transmission equipment N1EGT2, N1EFT8, and N1EFT8A are supported by the N1EMS4 and N1EGS4/N3EGS4 boards.

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 the GFP protocol in the 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.

Root Cause

The engineers and the customer exchange found that the customer itself has a limited understanding of the background of the issues raised, and some of the concepts have ambiguity.

Suggestion and Summary

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

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.