Setting the loopback mode may affect the services carried on the port, so use this command with caution.
| ID | Name | Description |
|---|---|---|
| SRN | Subrack No. | Meaning: subrack number Value range: 0-11 Explanation: This parameter specifies the subrack number that uniquely identifies a subrack. Default value: None |
| SN | Slot No. | Meaning: slot number Value range: 0-27 Explanation: The subrack number and slot number uniquely identify a board. Default value: None |
| PN | Port No. | Meaning: port number Value range: 0-31 Explanation: The subrack number, slot number, and port number uniquely identify the position of a port. Default value: None |
| MODE | Loopback mode | Meaning: port loopback mode Value range: NOLOOP(no loopback); REMOTE(remote loopback); LOCAL(local loopback); PAYLOAD(payload loopback); SIN_CHN_LOC(single channel local loopback); SIN_CHN_REM(TDM remote timeslot loopback) Explanation: This parameter specifies the port loopback mode. 1. LOCAL: This mode specifies that signals sent from the local transmitting port are sent back directly through the local receiving port. 2. REMOTE: This mode specifies that signals received from the local port are directly sent back to the remote end (signals are not processed by the local board). 3. PAYLOAD: This mode specifies that signals received from the local port are processed by the local board and then sent back to the remote end. 4. SIN_CHN_LOC: This mode is a special local loopback; SIN_CHN_REM: This mode is a special remote loopback. Default value: None |
| LCN | Loopback channel | Meaning: loopback channel number when the port loopback mode is TDM remote timeslot loopback; supporting multiple options Value range: time slots 1-31 Explanation: This parameter specifies the loopback channel number. Default value: None |
| LCN | Loopback channel | Meaning: number of a loopback channel Value range: time slots 1-31 Explanation: This parameter specifies the number of a loopback channel; this parameter does not support multiple options. Default value: None |
| IDLECODE | Idle code | Meaning: idle code Value range: 0-255 Explanation: This parameter specifies the loopback idle code. Default value: 0 |
| AUSTOP | Loopback time[Minute] | Meaning: loopback period (minute) Value range: 1-65535 Explanation: This parameter specifies the duration of a loopback. Default value: 60 |
1. Set the loopback mode for an EIU port (Subrack No. = 0; Slot No. = 16; Port No. = 0; Loopback mode = REMOTE(remote loopback); Loopback time = 30): SET E1T1LOP: SRN=0, SN=16, PN=0, MODE=REMOTE, AUSTOP=30; 2. Set the loopback mode for an EIU port (Subrack No. = 0; Slot No. = 16; Port No. = 0; Loopback mode = SIN_CHN_LOC(single channel local loopback); Loopback channel = TS1(Time Slot 1); Idle code =2; Loopback time = 45): SET E1T1LOP: SRN=0, SN=16, PN=0, MODE=SIN_CHN_LOC, LCN=TS1, IDLECODE=2, AUSTOP=45;