Foxconn
RPQN O-RU Installation and Operating Guide
6. Troubleshooting
6.1 Why DU can not receive any data from RU?
Please check following items:
1. Check PTP is synced and GM’s quality. You may need to check GM’s status with satellites,
O-RU’s log and O-DU’s log.
2. Check the 10GbE interface in the DU server is linked up.
3. Check the 10GbE interface in the DU server is running at 10Gb speed
4. Check connectivity, make sure SFP+ module is actually inserted into the cage of the
connector in the DU server.
5. Check O-RU’s log for xRAN packet:
a. If log does not contain “xRan: log…………….”, it means O-RU does not receive any
C-Plane packet from O-DU.
b. Sometimes, it was caused by a PTP sync issue.
6. Please run an Intel sample app to make sure O-RU is working properly.
6.2 Recover O-RU
When O-RU is going to a weird state like the phenomenon below, please POWER CYCLE O-RU.
1. 10T state value is jumping 1&2
Version: v2.7
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