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Configuring the 12-Port Channelized T1/E1 Circuit Emulation PIC

 

When the 12-port Channelized T1/E1 Circuit Emulation PIC is brought online, 12 channelized T1 (ct1) interfaces or 12 channelized E1 (ce1) interfaces are created, depending on the T1 or E1 mode selection of the PIC.

Figure 1 and Figure 2 illustrate the possible interfaces that can be created on the 12-port T1/E1 Circuit Emulation PIC.

Figure 1: 12-Port T1/E1 Circuit Emulation PIC Possible Interfaces (T1 Size)
12-Port T1/E1 Circuit Emulation PIC Possible Interfaces (T1 Size)
Figure 2: 12-Port T1/E1 Circuit Emulation PIC Possible Interfaces (E1 Size)
12-Port T1/E1 Circuit Emulation PIC Possible Interfaces (E1 Size)

The following sections explain:

Configuring CT1/CE1 Interfaces

The following sections explain how to configure the T1/E1 mode at the PIC level to create ct1 interfaces or ce1 interfaces and to create an ATM interface on a CT1 interface or a CE1 interface:

Configuring T1/E1 Mode at the PIC level

To configure T1/E1 mode at the PIC level:

  1. Go to the [edit chassis] hierarchy level.
  2. Configure the FPC slot and PIC slot.
  3. Configure the framing mode as E1 or T1.

After the PIC is brought online, 12 channelized T1 (ct1) interfaces or 12 channelized E1 (ce1) interfaces are created.

Note

If the mode is not manually configured, then the PIC defaults to T1.

Creating an ATM Interface on a CT1 or CE1

To create an ATM interface on a CT1 interface:

  1. Go to the [edit interfaces ct1-fpc/pic/port] hierarchy level.
  2. Configure the no-partition statement to use channelized interface as clear channel and to set the interface type as an ATM interface.

The interface at-fpc/pic/port is created.

You can use the show chassis hardware command to display a list of the installed PICs.

Creating an ATM Interface on a CE1 Interface

To create an ATM interface on a CE1 interface, enter the following command:

  1. Go to the [edit interfaces ce1-fpc/pic/port] hierarchy level.
  2. Configure the no-partition statement to use channelized interface as clear channel and to set the interface type as an ATM interface.

The interface at-fpc/pic/port is created.

You can use the show chassis hardware command to display a list of the installed PICs.

Configuring Interface-Specific Options

ATM supports T1 and E1 interfaces on 12-port Channelized T1/E1 Circuit Emulation PICs. The following sections explain how to configure the interface-specific options for ATM, E1, and T1 interfaces.

Configuring ATM Interface-Specific Options

To configure ATM interface-specific options:

  1. Go to the [edit interfaces at-fpc-slot/pic-slot/port:logical-unit].
  2. Configure the supported PIC type as a CE PIC—atm-ce, a ATM I PIC—atm1, or as a ATM II IQ PIC—atm2 under the atm-options statement.
Note

To configure Circuit Emulation PICs, you must specify the pic-type option as atm-ce at the [edit interfaces at-fpc-slot/pic-slot/port:logical-unit atm-options] hierarchy level.

On MX Series routers with ATM MICs with SFP, Junos OS automatically sets the PIC type to ATM MIC.

Note that this topic uses the term PIC for ATM MICs where the reference is to a CLI or Junos OS entity.

Configuring E1 Interface-Specific Options

To configure E1 interface-specific options:

  1. Go to the [edit interfaces at-fpc-slot/pic-slot/port:logical-unit e1-options].
  2. Configure the framing format for E1 interfaces as G704 mode with CRC4—g704, G704 mode without CRC4—g704-no-crc4, or unframed mode—unframed.
  3. Configure the bert-algorithm statement with the pattern to send in the bit stream during a bit error rate test (BERT).
  4. Configure the duration of a BERT test from 1 through 86,400 seconds.
  5. Configure the loopback mode as local loopback or remote loopback

Configuring T1 Interface-Specific Options

To configure T1 interface-specific options:

  1. Go to the [edit interfaces at-fpc-slot/pic-slot/port:logical-unit t1-options].
  2. Configure the framing format for T1 interfaces as extended super frame—esf or super frame—sf.
  3. Configure the bert-algorithm statement with the pattern to send in the bit stream during a bit error rate test (BERT).
  4. Configure the duration of a BERT test from 1 through 86,400 seconds.
  5. Configure the loopback mode as local loopback, payload loopback, or remote loopback.
  6. Configure the CRC minor alarm threshold value.
  7. Configure the CRC major alarm threshold value.
  8. Configure the invert-data statement to invert the transmission of unused data bits on the T1 interface.