To configure SONET clear channels

Purpose

Perform this procedure to configure SONET clear channels on OC3 to OC192 ports that provide clear channel services. Each port supports one clear channel.

Steps
 
1 

Choose Equipment from the navigation tree view selector.

2 

Right-click on the device on which you want to create a clear channel port and select Properties. The Network Element (Edit) form opens.

3 

On the Network Element (Edit) form navigation tree, expand the Shelf icon.

4 

Expand to the port level and click on a clear channel port object. The Physical Port (Edit) form opens. SONET is the default framing scheme.

Note: A clear channel port is a port on a card that is not designated Deep Channelized.

5 

Configure the required parameters and click Apply.

6 

In the navigation tree, right-click on the port and choose Create Channel. The Channel Type Selection form opens.

7 

Choose the channel type. The Stsn SONET Channel (Create) form opens with the General tab displayed.

If you are configuring a 4 x Channelized OC3/OC12 ASAP SFP adapter card on a 7705 SAR, Release 7.0 R5 or later:

  • If the MDA mode is configured as OC3, the NFM-P supports channel type Sts3 under SONET, and channel type Sts3 with payload type Sts3 (non-channelized) under SDH for clear channel POS and Network APS.

  • If the MDA mode is configured as OC12, the NFM-P supports channel types Sts3 and Sts12 under SONET or SDH for clear channel POS and network APS.

You can create an SC APS or MC APS group to enable automatic protection switching. See To create an SC APS group and To create an MC APS group .

8 

Configure the required parameters.

The Encapsulation Type parameter is configurable when the Mode parameter is set to Access.

If you configure the Payload Type parameter as Sts3 (non-channelized), you must configure the Mode parameter as Network and the Encap Type as PPP Auto.

9 

Click Apply.

  1. If the Encapsulation Type parameter of the port is ATM, the form is refreshed.

  2. If the Encapsulation Type parameter of the port is not ATM, go to Step 12 .

10 

If required, configure an ATM interface. Click Edit ATM. The ATM interface form opens.

11 

Configure the required parameters.

12 

If required, create an ILMI link, see To create an ILMI link .

13 

Click OK and close the forms.

End of steps