Description of the problem

Huawei OSN3500 device 5.21.13.45 upgraded to version 5.21.18.50, using Toolkit tool loading, whether using board-level loading method or simulation package loading method, other single board upgrade are completed normally, but found that the SSN4SL64 single board software on the network element can not be loaded, prompting: unsupported board type. Error code: 12-32773.

And the upgrade guide for T2SL64 and N2SL16A single board upgrade if you use the board-level loading method, you need to follow the following method to upgrade:

1 、 Load the extended bios, after loading successfully, soft reset the single board.

2, load the single-board software, configuration files, fpga files (need to be upgraded before loading)

3, hard reset single board

4, load the basic bios, and activate. Soft reset single board.

Error code: 12-32773

Processing

1, due to the hardware type planning problem, T2SL64 and N2SL16A single boards have conflict with other single boards' hardware types, so the R&D adjusted these two single boards to new hardware types after version 5.21.13.45, and the new hardware types are defined by the extended BIOS file. This adjustment makes these two boards special for upgrading: when upgrading these two boards, you need to load the extended BIOS first, and then upgrade other software (please refer to the case study: SC0000285220).

2, but the scope of application of the above method is: the target version for the R6 and the previous version of the upgrade (because the R6 version of the two single boards with the expansion of the bios still support the two single boards before the adjustment of the hardware type). At the same time, if you use the analog package loading method is no problem, because the first analog package for the two boards is based on the type of PCB to distinguish, and second analog package loading in the loaded file is specially processed to support the support of these two single-board adjustment before the type of hardware.

3, R7 and later versions of the emergence of the package loading function, due to the distribution mechanism of the package loading requires that the file header to support the hardware type can not have a conflict, otherwise it will cause the

The distribution mechanism of package loading requires that the supported hardware types in the file header should not be in conflict, otherwise it will cause the file to be distributed repeatedly, which will eventually lead to the abnormal upgrade of single board. Therefore, in R7 and later versions, these two single board software cleaned up, does not support these two single board tuning

of the hardware type before the adjustment. Therefore, for upgrading to R7 and later versions across 13.45, the analog package and board upgrade will have loading errors.

Solution.

Circumvention Method:

For T2SL64 and N2SL16A single boards upgrading to R7 and later versions, a separate load is required and an intermediate version is used to transition. The specific method is as follows:

1, the first upgrade need to remove the T2SL64 and N2SL16A from the toolkit or DC tool load list, and wait for other single board upgrade is completed to deal with separately.

2, select an intermediate version (only need to cross the 5.21.13.45 version) such as R3C02B032SP01 (5.xx.13.47P01) of the simulation package pkg, only select the T2SL64 and N2SL16A single board for upgrading (the choice of the simulation package is because it can be without the need to upgrade the expansion of the bios first)

3, after the upgrade is completed, then select the target version of the analog package pkg, only select the T2SL64 and N2SL16A single board to upgrade.

Recommendation and summary

For upgrading Huawei OSN3500 devices SL64 and N2SL16A single boards, please note that: if you are upgrading across version 5.21.13.45, if the target version is R6 and its predecessors, you need to upgrade the expansion bios first when you adopt the version loading; if the target version is upgrading to R7 and its predecessors, you need to adopt an intermediate transition version.

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