Channel Model (OTU, Line or PID Board)

Availability of the Standard Mode

NOTE:

• Standard mode is supported since the V100R006C01 version of the product that works with the U2000 V100R005C01.
• LOA board and NPO2E board only support the standard mode.
• √ means that the board supports the mode and x means that the board does not support the mode.

Differences Between Board Channels in the Standard and Compatibility Modes

This topic considers NS2 boards as an example to describe differences between NS2 board channels in the standard and compatibility modes.

• Compatibility mode

  As shown in Figure 1, it is the board mode of 53NS2 boards.

  Figure 1 53NS2 board mode
  
  

  • In the compatibility mode, channel numbers are defined to 1, 2, ... The channel number does not show whether the channel is an ODU layer channel or an OTU layer channel. It is required to add internal optical ports and cross-connections of a level when adding services of a level.
  • Ensure that the number of timeslots used by a service is fixed.
  • An LP port supports the ODUk and ODUk+1 functions. As shown in Figure 1, an (ODU0LP1/ODU0LP1)-1 port supports the ODU0 and ODU1 functions. Therefore, alarms cannot be identified as ODU0 or ODU1 alarms if no alarm ID is rooted.

• Standard mode

  As shown in Figure 2, it is the board mode of 53NS2 boards.

  Figure 2 53NS2 board mode
  
  

  NOTE:

  If an ODUk channel is used, cross-connections cannot be configured on channels of related levels. For example, if IN/OUT-OCH:1-OTU2:1-ODU2:1-ODU1:1 is used, cross-connections cannot be configured on the IN/OUT-OCH:1-OTU2:1-ODU2:1 and OCH:1-OTU2:1-ODU2:1-ODU1:1-ODU0:1; if cross-connections are configured on IN/OUT-OCH:1-OTU2:1-ODU2:1-ODU1:1-ODU0:1, cross-connections cannot be configured on IN/OUT-OCH:1-OTU2:1-ODU2:1-ODU0:1.

  • The channel name does not contain the channel number of the ODUk level, but show the encapsulation format. NS2 boards are set as an example. The second ODU0 of the third ODU1 of the first ODU2 on the board is displayed as 53NS2-1(IN1/OUT1)-OCH:1-OTU2:1-ODU1:3-ODU0:2.
  • Timeslots are not required to be continuous. If quantity of timeslots is enough, services can be transmitted. If the maximum bandwidth of the optical port is OTU2, after an ODU1 service is accessed, there are three ODU1s remained. The rest bandwidth can be used by any ODU0, ODUFlex or ODU1 service.
  • Internal logic ports are deleted and all ODU layers are partitioned to physical ports. Alarms and performance are mapped to specific physical ports. Boards can be located according to alarms for fault detection and maintenance.

Impacts of the Standard Mode on the U2000 Web LCT

The change of board models has impacts on operations on the U2000 Web LCT. This topic takes NS2 boards as an example to describe operations affected because of the change of board models.

Affected U2000 Web LCT Interface	Navigation Path	Compatibility Mode	Standard Mode
Path View	In the NE panel, select a board, double-click or right-click the board icon and choose Path View from the shortcut menu.	See Figure 3.	See Figure 4.
WDM Interface	In the NE Explorer, click a board and choose Configuration > WDM Interface from the Function Tree.	See Figure 5.	See Figure 6.
SM Overhead	In the NE Explorer, click the desired NE and choose Configuration > OTN Overhead Management > SM Overhead from the Function Tree.	See Figure 7.	See Figure 8.
PM Overhead	In the NE Explorer, click the desired NE and choose Configuration > OTN Overhead Management > PM Overhead from the Function Tree.	See Figure 9.	See Figure 10.
TCM Overhead	In the NE Explorer, click the desired NE and choose Configuration > OTN Overhead Management > TCM Overhead from the Function Tree.	See Figure 19.	See Figure 20.
Create Cross-Connection	In the NE Explorer, click an NE and choose Configuration > WDM Service Management from the Function Tree. On the WDM Cross-Connection Configuration interface, click New > Cross-Connection Service	See Figure 11.	See Figure 12.
Create SNCP Service	In the NE Explorer, click an NE and choose Configuration > WDM Service Management from the Function Tree. On the WDM Cross-Connection Configuration tab, click New > SNCP Service	See Figure 13	See Figure 14
Performance	In the NE Explorer, click a board and choose Performance from the Function Tree.	See Figure 15.	See Figure 16.
Alarm	In the NE Explorer, click a board and choose Alarm from the Function Tree.	See Figure 17.	See Figure 18.

Figure 3 Path View (Compatibility Mode)

Figure 4 Path View (Standard Mode)

Figure 5 WDM Interface (Compatibility Mode)

Figure 6 WDM Interface (Standard Mode)

Figure 7 SM Overhead (Compatibility Mode)

Figure 8 SM Overhead (Standard Mode)

Figure 9 PM Overhead (Compatibility Mode)

Figure 10 PM Overhead (Standard Mode)

Figure 11 Create Cross-Connection (Compatibility Mode)

Figure 12 Create Cross-Connection (Standard Mode)

Figure 13 Create SNCP Service (Compatibility Mode)

Figure 14 Create SNCP Service (Standard Mode)

Figure 15 Performance (Compatibility Mode)

Figure 16 Performance (Standard Mode)

Figure 17 Alarm (Compatibility Mode)

Figure 18 Alarm (Standard Mode)

Figure 19 TCM Overhead (Compatibility Mode)

Figure 20 TCM Overhead (Standard Mode)