To configure TDM DS3 channels

Purpose

Perform this procedure to configure DS3 channels and children objects from a channelized DS3 port.

Steps
 
1 

Choose Equipment from the navigation tree view selector.

2 

Right-click on the device where you want to configure TDM DS3 channels 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 channel level and click on a DS3 channel. The DS3/E3 Channel (Edit) form opens. Configure the required parameters.

5 

Configure the Channelized parameter and click Apply.

If you choose DS1 or E1, perform Step 10 to Step 21 .

6 

Configure the Encapsulation Type parameter and click Apply.

  1. If you choose BCP Null, BCP DOT1 Q, or IPCP, go to Step 7 .

  2. If you choose FR, go to Step 8 .

  3. If you choose Cisco HDLC, go to Step 9 .

  4. If you choose WAN Mirror, perform Step 11 to Step 14 .

7 

Configure the PPP interface for the channel, if required.

  1. Click Edit PPP. The PPP Interface form opens. Configure the required parameters.

  2. Click OK.

  3. Perform Step 11 to Step 14 .

8 

Configure the FR interface, if required.

  1. Click Edit FR. The FR Interface form opens. Configure the required parameters.

  2. Click on the Frf12 tab and configure the required parameters. Set the Mode parameter to Enabled.

  3. Click Select beside the MCFR Egress QoS Profile parameter. The Select MCFR Egress Qos Profile - FR Configuration form opens.

  4. Choose a profile from the list and click OK. The Select MCFR Egress Qos Profile - FR Configuration form closes and the FR Interface form is refreshed with the MCFR Egress QoS Profile information.

  5. Click OK.

  6. Perform Step 11 to Step 14 .

9 

Configure the Cisco HDLC information.

  1. Click on the Cisco HDLC tab and configure the required parameters.

  2. Perform Step 11 to Step 14 .

10 

Configure the DS1 and DS0 channels. Perform the following steps:

  1. Click on the SubChannels tab.

  2. Click Create. The DS1/E1 Channel (Create) form opens. Configure the required parameters.

  3. Click on the States tab and configure the required parameters.

  4. Click OK.

11 

Click on the States tab and configure the required parameters.

12 

Click on the Channel tab. The DS3/E3 Channel (Edit) form opens. Configure the required parameters.

The Clock Source parameter value Differential is supported on a 4 × channelized DS3/E3 ASAP MDA for a DS3/E3 channel, on a 7705 SAR-8, 7705 SAR-8 v2, or 7705 SAR-18, Release 7.0 R1 or later.

13 

Click on the Message Data Link tab and configure the required parameters.

The MDL Message Type parameter specifies the Line Message Data Link message for a DS3 and specifies the transmission method of a message over a channelized interface. The parameter is only applicable if the DS3 is using C-bit framing. The default is disabled. Click on the check boxes to enable transmission methods and enter text strings to choose the message options for this parameter as required. The transmission options are:

  • Test Signal

  • DS3 Path

  • Idle Signal

Table 16-7: MDL message options

Option

String Length

Description

Port Number String

0 to 38 characters

specifies the port ID code

Generator Number String

0 to 38 characters

specifies the generator number to send in the MDL test signal message

Equipment ID Code

0 to 10 characters

specifies the Equipment ID code

Location ID Code

0 to 11 characters

specifies the Location ID code

Frame ID Code

0 to 10 characters

specifies the Frame ID code

Unit ID Code

0 to 6 characters

specifies the unit ID code

Facility ID Code

0 to 38 characters

specifies the facility ID code

14 

Click OK.

15 

Right-click on a DS1 channel in the navigation tree and choose Properties. The property form for the channel opens.

16 

Click on the States tab and configure the required parameters.

17 

Add a DS0 channel group, if required. Perform the following steps:

  1. Click on the SubChannels tab.

  2. Click Create. The DS0 Channel Group (Create) form opens.

  3. Configure the required parameters.

    Note:

    On a 4x Channelized ASAP, you must configure the MDA mode in order to use certain encapsulation types. See To configure an MDA for more information on configuring the MDA mode.

  4. Click OK.

18 

Click on the Channel tab and configure the required parameters.

19 

Click OK.

20 

Configure timeslots for the DS0 channel group. Perform the following steps.

  1. Choose a DS0 channel in the navigation tree and choose Properties. The property form for the channel opens.

  2. Configure the required parameters.

  3. Click on the States tab and configure the required parameters.

  4. Click on the Channel Group tab and configure the required parameters.

    Choose one or more timeslots. You can use the Select All and Deselect All buttons.

  5. If you set the Encapsulation Type parameter to BCP Null, BCP DOT1 Q, or IPCP in 2 , you can configure the PPP for the timeslot on the Channel Groups tab.

    • Click Edit PPP. The PPP Interface form opens. Configure the required parameters.

      The Compression parameter is configurable when the DS1 or E1 channel group is on an ASAP MDA in a 7750 SR.

    • Click OK.

21 

Click OK.

End of steps