Plan the DCC resource properly according to the configuration principle of the HWECC and configure the HWECC by following the specified process to ensure the effective supervision of the U2000 on the NEs.
Changing the ID of an NE
You can use the U2000 to adjust the original planning and change the ID of an NE.
Prerequisites
。The user must log in to the NE.
。You must be an NM user with NE operator authority or higher.
Procedure
1 Select an NE in the NE Explorer. Choose Configuration > NE Attribute from the Function Tree.
2 Click Modify NE ID. The Modify NE ID dialog box is displayed.
3 Enter New ID and New Extended ID. Click OK.
4 Then click OK in the displayed dialog box.
Follow-up Procedure
After you change the ID of the NE, a warm reset is performed on the SCC board. In this case, you need to log in to the NE again after a certain period.
Setting Communication Parameters of an NE
The communication parameters of an NE include the IP address of the NE, extended ID, gateway IP, subnet mask, and NSAP address. You can use the U2000 to set the communication parameters.
Prerequisites
。The user must log in to the NE.
。You must be an NM user with NE operator authority or higher.
Procedure
1 Select an NE from the Object Tree in the NE Explorer. Choose Communication > Communication Parameters from the Function Tree.
2 Set the communication parameters of the NE according to the network planning.
3 Click Apply.
Configuring DCCs
To meet the NM requirements of a complicated network, it is necessary to set the channel type, enable/disable status, and protocol type of the DCC according to the network planning.
Prerequisites
。The user must log in to the NE.
。You must be an NM user with NE operator authority or higher.
Context
The NE uses D1-D3 as DCC by default and allows the DCC communication.
Procedure
1 Select the NE from the Object Tree in the NE Explorer. Choose Communication > DCC Management from the Function Tree.
2 Click the DCC Rate Configuration tab. Then, click New. The system displays the dialog box. Set the Port, Channel Type, Protocol Type and LAPD Role fields.
3 Click OK, and then click OK in the Operation Result dialog box.
4 Optional: Click Query to query DCCs.
5 Optional: Select the required DCC, and modify the parameters according to Table 1. Then, click Apply to finish the modification.
6 Optional: Select the required DCC, and click Delete to delete the DCC.
Example
Table 1 Parameters
Dividing a Network into Multiple ECC Subnets
When the number of NEs on a network exceeds 50, you need to divide the network into multiple ECC subnets to prevent broadcast storms.
Prerequisites
。The user must log in to the NE.
。You must be an NM user with NE operator authority or higher.
Procedure
1 In the NE Explorer, select the required NE and then choose Communication > DCC Management from the Function Tree.
2 Click the DCC Rate Configuration tab, right-click DCC channels D1-D3 of the optical interface that is directly connected to the equipment on another subnet, and select Delete.
Configuring the Extended ECC
If no optical fiber connections are available between NEs, use Ethernet ports on the NEs to achieve extended ECC communication. By default, NEs use automatic extended ECC communication. If more than four NEs are connected to one hub, the NEs need to use manual extended ECC communication.
Prerequisites
。 The equipment must be installed according to the planning. The connections of the cables and fibers are correct.
。 The NE must be created on the U2000. The communication between the U2000 and the NE must be normal.
。 The communication between NEs must be normal.
Procedure
1 Setting the client NE
。In the status figure of the optical NE (ONE), right-click the server NE that is defined in the ECC configuration plan and select the NE Explorer.
。Choose Communication > ECC Management from the left-hand Function Tree.
。Click Refresh to check the current ECC mode of the NE.
。Set ECC Extended Mode to Specified mode in the right-hand Functional Panel.
。In the Set Client area, enter the IP address of the server NE in the Opposite IP field. Then enter a port number in the Port field.
。Click Apply on the Set Client page.
。The Operation Result dialog box is displayed, indicating that the operation is successful. Click Close.
2 Setting the server NE
。Log in to the U2000.
。Double-click the ONE icon, and the status figure of the ONE is displayed.
。Right-click the subrack NE and select the NE Explorer.
。Choose Communication > ECC Management from the left-hand Function Tree.
。Click Refresh to check the current ECC mode of the NE.
。Set ECC Extended Mode to Specified mode in the right-hand Functional Panel.
。Enter the port number in the Port field of the Set Server area. The port number must be the same as the port number you enter in the Port field of the Set Client area of the client NE.
。Click Apply on the Set Server page.
。The Operation Result dialog box is displayed, indicating that the operation is successful. Click Close.
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