Querying the Status of an Interface Board Port

This describes how to query the configuration status, work mode, and availability of E1/T1 ports, optical ports, and the IP interface board and transmission optimization interface board, and how to measure the transmission performance of optical boards on the basis of the query results.

Prerequisites

The LMT runs normally.
The communication between the LMT and the BSC is normal.
The interface board to be queried runs properly.

Context

Table 1 lists the parameters about the status of E1/T1 ports.

**Table 1** Parameters about the status of E1/T1 ports
Parameter	Description
Work Mode	E1 or T1 transmission mode.
Configuration Status	Configured or Unconfigured. If the Configuration Status of a port is Unconfigured, the first query result of the Port Status of the port is unreliable.
Port Status	Normal, Faulty, In Test, or Loop. In Test refers to a situation where the bit error rate of the port is being monitored.

Table 2 lists the parameters about the status of sub-boards of optical boards.

**Table 2** Parameters about the status of sub-boards of optical ports
Parameter	Description
Work Mode	E1 or T1 transmission mode.
Tributary Numbering	To connect to products of different suppliers, different modes shall be set. The three modes of the tributary numbering are Lucent mode, Huawei mode, and Alcatel mode.
TX J0 Byte	J0 is a regenerator section trace byte. It is used to repeatedly transmit phase access point identifiers so that the receiver can confirm that it is in continuous connection with the transmitter. In the networks of one operator, J0 can be any characters. On the network edges of two operators, J0 of the receiver must be the same as J0 of the transmitter. J0 helps you to detect and clear faults in advance and shorten the restoration time of networks.
Expect RX J0 Byte
RX J0 Byte
TX J1 Byte	J1 is a path trace byte. It is used to repeatedly transmit the high order path access point identifies so that the receiver can confirm that it is in continuous connection with the transmitter. The J1 of the receiver must be the same as the J1 of the transmitter. The default values of the transmit/receive J1 of Huawei equipment are SBS HuaWei 155, SBS HuaWei 622, and SBS HuaWei 2500, corresponding to Huawei 155, 622, and 2500 transmit equipment respectively.
Expect RX J1 Byte
RX J1 Byte
S1 Type	S1 is a synchronization status byte. Different formation of bits represents different clock quality levels defined by ITU-T so that the equipment can determine the quality of the received clock signals and decide whether to switch to the clock source of higher quality. A low value of S1 (b5-b8) represents a low quality level of a clock. S1 is of two types: Insert None S1 Byte and Insert S1 Byte.
TX S1 Byte
RX S1 Byte
TX C2 Byte	C2 is a signal label byte. It is used to indicate the multiplexing structure and the information payload of the VC frame. For Huawei devices, C2 is in TUG mode.
Expect RX C2 Byte
RX C2 Byte
TX K1 Byte	K1 and K2 are Automatic Protection Switch (APS) bytes. They are used to transmit APS commands so that the equipment can perform switchover automatically when a fault occurs. The network services are restored after the switchover.
RX K1 Byte
TX K2 Byte
RX K2 Byte

Table 3 lists the parameters about the status of the optical ports.

**Table 3** Parameters about the status of optical ports
Parameter	Description
TX Frame Format	Double Frame, CRC4 Frame, Superframe, and Extended Superframe.
RX Frame Format
Avail status	Normal or Faulty
Operation state	Enable or Disable
Report Alarm Flag	Report or No Report. The default setting is No Report.
TX J2 Byte	VC12 is a path trace byte. Its function is similar to J0 and J1. It is used to repeatedly transmit the low order path access point identifies negotiated by the transmitter and the receiver so that the receiver can confirm that it is in continuous connection with the transmitter on the path.
Expect RX J2 Byte
RX J2 Byte
V5	V5 is the path status and the signal label byte. to check the bit error rate and mark signals and to indicate the status of the VC12 path. When you query the V5 byte on the LMT, the result of the first query may be the result queried for the last time. Therefore, the first query result may be incorrect. The correct result is obtained after the second query.

Procedure

Through GUI
1. Querying the interface board port status (E1/T1)
  1. On the LMT, choose BSC Maintenance > Maintain Transmission and Signaling > Query Interface Board Port Information. A dialog box is displayed, as shown in Figure 1.
    Figure 1 Query Interface Board Port Information dialog box
  2. Set parameters in the Board Location area and click Query. The query results are displayed, as shown in Figure 2.
    Figure 2 Results of querying the interface board port status (E1/T1)
2. Querying the optical interface board port status
  1. In the dialog box shown in Figure 1, set parameters in the Board Location area, as shown in Figure 3.
    Figure 3 Query Interface Board Port Status dialog box
    
    NOTE:
    Query Object has two options: Sub-board and Port. You can query these two options in the similar way. This topic takes querying the Sub-board as an example.
  2. Set Query Object to Sub-board and click Query. The query results are displayed, as shown in Figure 4.
    Figure 4 Results of querying the sub-board
    
    CAUTION:
    Before querying the optical sub-board, you need to configure it. If the optical sub-board is not configured, the query result is incorrect.
    
    Select the Query OIU Port Status tab page to query the transmission performance of the optical interface ports.
Through MML
1. You can run the following commands on the LMT to query the status of the interface board port.
  - Run the DSP E1T1 command to query the status of electrical interface ports.
  - Run the DSP OPT command to query the status of optical interface ports.
  - Run the DSP OPTSUBBRD command to query the status of sub-boards of optical interface ports.