Description of the problem

The Huawei OSN7500 device uses a high-power power consumption subrack, and the query finds that the power consumption threshold still remains at the factory setting of 1100 W. The following is the data queried using the command line at the time of opening.

Host version: 5.21.31.35

U2000: V100R002C01

Processing

1, through the confirmation, the existing network at the same time to meet the above four requirements, can be modified to enhance the power consumption of 2300W

2、Because the customer's network management version does not support manual modification: U2000 V100R005C00 supporting network management to increase the power management interface to support the network management of manual settings to change to 2300W

3. Therefore, the problem is solved after setting with command line:

:cfg-set-nepowerth:0xff01 ///0xff01: indicates large power consumption; 0xff00: indicates typical power consumption (1100W)

Root cause

All new shipments of OSN3500/7500 high power subracks have a default power consumption threshold of 1100W (limited by software in the production chain), which must be reset at the time of opening if 2300W power consumption is required.

However, modifying the power consumption threshold is a dangerous operation, which may lead to equipment power down, so the following work should be completed to confirm before changing:

1. Confirm the type of PDU by on-site work survey (must be TN51PDU)

2、Remote query subrack backplane version (meet OSN3500VER.E and above, OSN7500 VER.C/D and above)

3、On-site confirmation of the sub-frame power supply board for PIUB

4、On-site confirmation: whether the equipment power supply room distribution cabinet meets the requirements;

Recommendations and summary

Modifying the power consumption threshold is a dangerous operation, which may lead to equipment power down, so the following 4 points of confirmation must be required to be completed before the change (one must be completed without the other):

1. Confirm the type of PDU by on-site survey (TN51PDU is required).

2、Network management remote query sub-frame backplane version (meet OSN3500VER.E and above, OSN7500 VER.C/D and above)

3、Network management remote query or on-site confirmation of the sub-frame power supply board for PIUB

4、Confirm with the customer: whether the equipment room distribution cabinet for equipment power supply meets the requirements;

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