Configuring the GEIUA/GOIUA

This describes how to add a GEIUA/GOIUA in the GTCS and configure its attributes in BM/TC separated mode. The GEIUA and GOIUA are responsible for the E1/T1 transmission and STM-1 transmission on the A interface respectively.

Scenario	BSC initial configuration and BSC capacity expansion
Mandatory/Optional	Mandatory

Prerequisite

The GTCS has idle slots to hold the GEIUA and GOIUA.

Preparation

**Table 1** Example of the data negotiated and planned for configuring the GEIUA
Parameter	Example	Source
Board Type	GEIUA	BSC internal planning
Work Mode	E1	BSC internal planning
Active/Standby Mode	Selected	BSC internal planning
Load Key	Server	BSC internal planning
Frame Format	DOUBLE_FRAME	Negotiation with the peer

**Table 2** Example of the data negotiated and planned for configuring the GOIUA
Parameter	Example	Source
Board Type	GOIUA	BSC internal planning
Work Mode	E1	BSC internal planning
Active/Standby Mode	Selected	BSC internal planning
Load Key	Server	BSC internal planning
Tributary Numbering	HuaWei mode	Negotiation with the peer
TX J0 Byte	MGW SDH DEFAULT (character string)	Negotiation with the peer
Expect RX J0 Byte	MGW SDH DEFAULT (character string)	Negotiation with the peer
TX J1 Byte	MGW SDH DEFAULT (character string)	Negotiation with the peer
Expect RX J1 Byte	MGW SDH DEFAULT (character string)	Negotiation with the peer
TX J2 Byte	MGW SDH DEFAULT (character string)	Negotiation with the peer
Expect RX J2 Byte	MGW SDH DEFAULT (character string)	Negotiation with the peer
TX Frame Format	CRC4_MULTIFRAME	Negotiation with the peer
RX Frame Format	CRC4_MULTIFRAME	Negotiation with the peer

The procedures for configuring the GEIUA and GOIUA are the same. The following procedure takes how to add a pair of active/standby GOIUAs in the GTCS as an example.

Procedure

On the BSC6000 Local Maintenance Terminal, click the BSC Device Panel tab. Select the number of the cabinet where the GTCS is located from the Current Cabinet drop-down list.
Right-click an idle slot among slots 18-25 holding the GTCS, and then choose Add Board from the shortcut menu. A dialog box is displayed, as shown in Figure 1.
Figure 1 Add Board dialog box
Set FuncType to A interface board, and set Board Type to GOIUA. Then, set other parameters by referring to Table 1.
Click Finish. The GOIUA is added.
Right-click GOIUA, and choose Configure Board Attributes from the shortcut menu. A dialog box is displayed, as shown in Figure 2.
Figure 2 Configure Board Attributes dialog box (GOIUA)
Set Load Key, and then click Next. A dialog box is displayed, as shown in Figure 3.
Figure 3 Configure Board Attributes dialog box (GOIUA)
Set the sub-board attributes of the GOIUA by referring to Table 1.
NOTE:
When the parameter Optical Interface Standard is set to SONET, you must configure the following parameters: High Order Path 1 TX J1 Byte, High Order Path 1 Expect RX J1 Byte, High Order Path 2 TX J1 Byte, High Order Path 2 Expect RX J1 Byte, High Order Path 3 TX J1 Byte, and High Order Path 3 Expect RX J1 Byte.
Click Next. A dialog box is displayed, as shown in Figure 4.
Figure 4 Configure Board Attributes dialog box (GOIUA)

NOTE:
TX Frame Format and RX Frame Format should be negotiated with the peer. For other parameters, you can use the default settings.

In the BSC, J2 Byte Alarm Report Switch is set to Close by default. You can modify the setting as required. The BSC recognizes only the J2 byte alarms in the format suggested in the SDH. If J2 Byte Alarm Report Switch is set to Open, Huawei recommends that the peer expected RX J2 byte be set in the format suggested in the SDH.
Set the attributes of the port on the GOIUA by referring to Table 1.
Click Next. A dialog box is displayed, as shown in Figure 5.
Figure 5 Configure Board Attributes dialog box (4)

NOTE:
Protect mode, Switch mode, and recover mode should be negotiated with the peer. For other parameters, you can use the default settings.
Click Finish. The GOIUA is configured.