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Configuring SAToP on 16-Port Channelized E1/T1 Circuit Emulation MIC

 

The following sections describes configuring SAToP on the 16-Port Channelized E1/T1 Circuit Emulation MIC (MIC-3D-16CHE1-T1-CE).

Configuring T1/E1 Framing Mode at the MIC Level

To configure the framing emulation mode at the MIC level.

  1. Go to the [edit chassis fpc fpc-slot pic pic-slot] hierarchy level.
  2. Configure the framing emulation mode as E1 or T1.

After a MIC is brought online, interfaces are created for the MIC’s available ports on the basis of the MIC type and the framing option used:

  • If you include the framing t1 statement, 16 channelized T1 (CT1) interfaces are created.

  • If you include the framing e1 statement, 16 channelized E1 (CE1) interfaces are created.

Note

If you set the framing option incorrectly for the MIC type, the commit operation fails.

By default, t1 framing mode is selected.

Circuit Emulation PICs with SONET and SDH ports require prior channelization down to T1 or E1 before you can configure them. Only T1/E1 channels support SAToP encapsulation or SAToP options.

Bit error rate test (BERT) patterns with all binary 1s (ones) received by CT1/CE1 interfaces on Circuit Emulation MICs configured for SAToP do not result in an alarm indication signal (AIS) defect. As a result, the CT1/CE1 interfaces remain up.

Configuring CT1 Ports Down to T1 Channels

To configure a CT1 port down to a T1 channel, use the following procedure:

Note

To configure a CE1 port down to the E1 channel, replace ct1 with ce1 and t1 with e1 in the procedure.

  1. In configuration mode, go to the [edit interfaces ct1-mpc-slot/mic-slot/port-number] hierarchy level.

    For example:

  2. On the CT1 interface, set the no-partition option and then set the interface type as T1.

    In the following example, the ct1-1/0/1 interface is configured to be of type T1 and to have no partitions.

Configuring CT1 Ports Down to DS Channels

To configure a channelized T1 (CT1) port down to a DS channel, include the partition statement at the [edit interfaces ct1-mpc-slot/mic-slot/port-number] hierarchy level:

Note

To configure a CE1 port down to a DS channel, replace ct1 with ce1 in the following procedure.

  1. In configuration mode, go to the [edit interfaces ct1-mpc-slot/mic-slot/port-number] hierarchy level.

    For example:

  2. Configure the partition, the time slot, and the interface type.

    In the following example, the ct1-1/0/0 interface is configured as a DS interface with one partition and three time slots:

To verify the configuration of the ct1-1/0/0 interface, use the show command at the [edit interfaces ct1-1/0/0] hierarchy level.

An NxDS0 interface can be configured from channelized T1 interface. Here N represents the time slots on the CT1 interface. The value of N is:

  • 1 through 24 when a DS0 interface is configured from a CT1 interface.

  • 1 through 31 when a DS0 interface is configured from a CE1 interface.

After you partition the DS interface, configure the SAToP options on it. See Setting the SAToP Options.