Foxconn
RPQN O-RU Installation and Operating Guide
5. FAQ
5.1 How to check if the O-RU is booted up and running
normally?
RU’s console log shows the following.
Latch later 1pps
time
=1427f8f7
swi4010
=1427f8f7
xran_sec
=1427f8f4 acc_diff[1]=0
hps_sec
=1602777637
cur_sec
=0 PA_ON TDD
curr dBFS of ORx = 0 0 912 11910
mean dBFS of ORx = 0 0 65535 65535
count
=1 1 0 0
10R:
sec
=1
hps
=1602777638
64b
=0
65to128
=1
total
=1
uni
=0 uni>
1158
=0
multi
=1
crc_err
=0
10T:
sec
=1
hps
=1602777638
64b
=0
65to128
=0
total
=0
uni
=0 uni>
1158
=0
multi
=0
crc_err
=0
state
=1
start
=0
adj
=0
rstcnt
=0
● When “Latch xxx 1pps” strings are shown, the O-RU has got synchronization with a GM/BC
and finished the initialization.
● Value definition:
○ 10R…means number of packets received from BBU.
○ 10T…means number of packets transmitted to BBU.
○ 64b: number of packets with size 64 bytes.
○ 65to128: number of packets with size between 65 bytes to 128 bytes.
○ uni>1158: number of packets with size greater than 1158.
○ total: total number of packets.
○ uni: number of uni-casting packets.
○ multi: number of multi-casting packets.
○ crc_err: number of packets with CRC error.
○ state = 1 : RU is waiting for the 1st c-plane message.
○ state = 2 : RU had received the 1st c-plane and started working.
5.2 Log “xran 10GbE is not ready... d6fff000” is normal or
abnormal?
No. Please check 10GbE connectivity and make sure 10GbE is linkup at DU server.
5.3 Why does RU's log seem not aligned?
Usually, it indicates PTP signal quality is not good. Please check the GM's quality with GPS
satellites.
5.4 Can I add Switch between O-RU and GM?
Yes. But, please make sure Switch supports IEEE 1588 PTPv2.
Version: v2.7
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