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Hi all, we are currently experiencing some issues with OpenBSC paired with a sysmobts-2050. SDCCH channels are getting stick into BROKEN/UNUSABLE state, and they don't get released. This accumulates over time and reaches a point where we have to manually restart osmo-nitb because there are no channels availables and the whole network breaks down. Is it a know issue or only us? :) This is the "show lchan" output: BTS 0, TRX 0, Timeslot 0, Lchan 0: Type SDCCH Connection: 0, State: BROKEN UNUSABLE BS Power: 37 dBm, MS Power: 39 dBm No Subscriber Bound IP: 0.0.0.0 Port 0 RTP_TYPE2=0 CONN_ID=0 Measurement Report: Flags: DLinval RXL-FULL-ul: -87 dBm, RXL-SUB-ul: -47 dBm RXQ-FULL-ul: 0, RXQ-SUB-ul: 0 BTS 1, TRX 0, Timeslot 0, Lchan 2: Type NONE Connection: 0, State: BROKEN UNUSABLE BS Power: 37 dBm, MS Power: 39 dBm No Subscriber Bound IP: 0.0.0.0 Port 0 RTP_TYPE2=0 CONN_ID=0 Measurement Report: Flags: DLinval RXL-FULL-ul: -110 dBm, RXL-SUB-ul: -110 dBm RXQ-FULL-ul: 0, RXQ-SUB-ul: 0 BTS 1, TRX 0, Timeslot 0, Lchan 3: Type NONE Connection: 0, State: BROKEN UNUSABLE BS Power: 37 dBm, MS Power: 39 dBm No Subscriber Bound IP: 0.0.0.0 Port 0 RTP_TYPE2=0 CONN_ID=0 Measurement Report: Flags: DLinval RXL-FULL-ul: -110 dBm, RXL-SUB-ul: -110 dBm RXQ-FULL-ul: 0, RXQ-SUB-ul: 0

Timeslot 0 is configured as CCCH+SDCCH4. Cheers

Ciaby