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Configuring CESoPSN on Channelized E1/T1 Circuit Emulation MIC

Configuring T1/E1 Framing Mode at the MIC Level

To set the framing mode at the MIC (MIC-3D-16CHE1-T1-CE) level, for all four ports on the MIC, include the framing statement at the [edit chassis fpc slot pic slot] hierarchy level.

• If you include the framing t1 statement, 16 CT1 interfaces are created.
• If you include the framing e1 statement, 16 CE1 interfaces are created.

Note: If you set the framing option incorrectly for the MIC type, the commit operation fails. Bit error rate test (BERT) patterns with all binary 1s (ones) received by CT1/CE1 interfaces on Circuit Emulation MICs configured for CESoPSN do not result in an alarm indication signal (AIS) defect. As a result, the CT1/CE1 interfaces remain up.

Configuring CT1 Interface Down to DS channels

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

Note: To configure a CE1 interface down to DS channels, 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.
   [edit]user@host# edit interfaces ct1-mpc-slot/mic-slot/port-number

   For example:

   [edit]user@host# edit interfaces ct1-1/0/0
2. Configure the sublevel interface partition index and the time slots, and set the interface type as ds.
   [edit interfaces ct1-mpc-slot/mic-slot/port-number]user@host# set partition partition-number timeslots timeslots interface-type ds

   For example:

   [edit interfaces ct1-1/0/0]user@host# set partition 1 timeslots 1-4 interface-type ds

   Note: You can assign multiple time slots on a CT1 interface. In the set command, separate the time slots by commas and do not include spaces between them. For example: [edit interfaces ct1-1/0/0]user@host# set partition 1 timeslots 1-4,9,22-24 interface-type ds

An NxDS0 interface can be configured from a CT1 interface. Here N represents the number of 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 CESoPSN options on it. See Setting the CESoPSN Options.

Configuring CESoPSN on DS Interfaces

To configure CESoPSN encapsulation on a DS interface, include the encapsulation statement at the [edit interfaces ds-mpc-slot/mic-slot/port-number:channel] hierarchy level.

1. In configuration mode, go to the [edit interfaces ds-mpc-slot/mic-slot/port-number:channel] hierarchy level.
   [edit]user@host# edit interfaces ds-mpc-slot/mic-slot/ port-number:channel

   For example:

   [edit]user@host# edit interfaces ds-1/0/0:1
2. Configure CESoPSN as the encapsulation type.
   [edit interfaces ds-mpc-slot/mic-slot/port-number:partition ]user@host# set encapsulation cesopsn

   For example:

   [edit interfaces ds-1/0/0:1 ]user@host# set encapsulation cesopsn
3. Configure the logical interface for the DS interface.
   [edit interfaces ds-mpc-slot/mic-slot/port-number:partition ] uset@host# set unit interface-unit-number

   For example:

   [edit interfaces ds-1/0/0:1 ]user@host# set unit 0