Hello, everyone!
Today, I'd like to share a case with you.
Problem description
When a customer checked on HUAWEI OLT MA5608T, he found the GPON port showed unknown status from U2000, and couldn't create any service for it, refers to the snapshot below.
Problem analysis
after we checked and did the synchronization, the issue still existed, and we checked the device configuration file, we found the customer configured the ifindex standard.
Root cause
The cause is that the MIB switch is configured on the device. snmp-agent ifindex-format standard.
In this case, if the value of ifindex is not within the range of interger32, the value of iftype in ifindex is converted to a smaller value. This ensures that the value range of ifindex is within the range of interger32, which complies with the value range of ifindex defined in the standard. However, this requires the cooperation of the upper-layer OSS.
Solution
If there is no such requirement, the ifindex in the standard format has no need to configure. For example, the U2000 connected to the device does not use this coding scheme,
then you can shut it down.
Verify that the value can be obtained after the modification.
In addition, it is recommended to configure this switch and check whether it is required by a third-party OSS. If yes, you can configure this parameter. However, you are advised to specify the IP address so that other NMSs will not be affected.
The configuration is similar to this configuration.
Thanks.
