Deleting the OSN 7500 device N1SLQ16 single board optical port DCC channel on the U2000 network management is unsuccessful, prompting invalid parameters, error code 38913

U2000 network management version V1R5C00

OSN 7500 device host version 5.21.20.52

N1SLQ16 single board version 9.31

Cause Analysis

The network administrator, device host, and single board versions do not match.

There is an abnormality in the single board or host.

Procedure

Check the version matching table to confirm that the network management version, the device host and the single board version are matching, and exclude the mismatch.

Delete the optical DCC channel of other optical boards on this network element on the network management, and the same problem occurs in the optical DCC channel of multiple NGSDH devices of the same version, so it can be confirmed that it is not a hardware problem.

Follow up to confirm that the optical port bandwidth negotiation switch command is added in NGSDH equipment version V1R10. This command is mainly used to set the 1.5M DCN mode of single boards, including SSN4SLD64, SSN4SL64, SSN4SLO16, SSN4SLQ16, SSN4SF64, and so on, and other single boards don't support the setting, and this parameter is enabled by default on the U2000 network management, so the deletion of the DCC channel of SSN4SLQ16 single boards is unsuccessful.The corresponding optical port DCC channel is not enabled on the U2000 network management. After the bandwidth negotiation switch of the corresponding optical port is disabled on the U2000 network management, deleting the DCC channel of the optical port is normal.

Recommendation Summary

Supporting the setting of 1.5M DCN mode makes the ASON available for communication with 1.5M DCN channels. When both devices connected to each other support large bandwidth, the software will automatically negotiate the large bandwidth by default and use the large bandwidth for communication, and the automatic negotiation of the large bandwidth is based on the base channel on the optical port (D1-D3/GCC0) to complete.

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