S1 link with error "Message not compatible with receiver state"

OSS and NOC
, ,
1

Hello Experts.

Need support on Huawei S1 AP setup. SRAN 11

1 S1 link is abnormal and after performing trace, the error is “Message not compatible with receiver state”.

S1 link with error
S1 link with error966×94 70.9 KB

S1 link with error
S1 link with error816×458 47.4 KB

S1 link with error
S1 link with error777×168 13.9 KB

2

The message seems to be from eNB to MME, so may be some kind of timeout.

Have you traced the MME side?

Is MME receiving the message?

3

Check with Transmission team.

4

Transmission is okay, SCTP links are normal.

Any other suggestion?