Configuring Channelized OC12/STM4 IQ Interfaces (SDH Mode)

The Channelized OC12 IQ PIC configured for SDH mode creates a single channelized STM4 interface. You can configure this interface as unpartitioned using the no-partition statement at the [edit interfaces cstm4-fpc/pic/port] hierarchy level to create a single SDH VC-4-4C interface, or you can partition it into the following OC slices:

SDH virtual concatenation 4 (VC-4) and channelized AU-4 interfaces (4 interfaces, any combination)
Channelized T3 or T3 interfaces from a channelized AU-4 interface (3 interfaces, any combination)
Channelized T1 or T1 interfaces from a channelized T3 interface (28 interfaces, any combination)
NxDS0 interfaces from a channelized T1 interface

This section describes how to configure the following channelized OC12 IQ interfaces on a Channelized OC12 IQ PIC configured in SDH mode:

Configuring Channelized OC12/STM4 IQ PICs for SDH Mode

To configure a Channelized OC12 IQ PIC to operate in SDH mode, include the framing sdh statement at the [edit chassis fpc fpc/pic/port] hierarchy level:

[edit chassis]fpc 0 {pic 2 {framing sdh;}}

This configuration creates interface cstm4-0/2/0.

For more information, see the JUNOS System Basics Configuration Guide.

Configuring an Unpartitioned SDH (VC-4-4C) Interface on a Channelized OC12/STM4 IQ PIC

On a Channelized OC12 IQ PIC, you can configure one SDH (VC-4-4C) interface. To configure an SDH (VC-4-4C) interface, include the no-partition and interface-type statements at the [edit interfaces cstm4-fpc/pic/port] hierarchy level:

[edit interfaces cstm4-fpc/pic/port]no-partition interface-type so;

This configuration creates interface so-fpc/pic/port.

Example: Configuring an Unpartitioned SDH (VC-4-4C) Interface

Configure an unpartitioned SDH (VC-4-4C) interface, using partition 1 and OC slices 4 through 6:

[edit interfaces cstm4-0/2/0]no-partition interface-type so;

This configuration creates the interface so-0/2/0.

Configuring SDH (VC-4) Interfaces on Channelized OC12/STM4 IQ PICs

To configure an SDH (VC-4) interface on a Channelized OC12 IQ PIC, include the partition, oc-slice, and interface-type statements at the [edit interfaces cstm4-fpc/pic/port] hierarchy level, specifying the so interface type:

[edit interfaces cstm4-fpc/pic/port]partition partition-number oc-slice oc-slice-range interface-type so;

This configuration creates interface so-fpc/pic/port:channel.

The partition number is the sublevel interface partition index and is correlated with the channel number. For Channelized OC12 IQ PICs, the OC-slice range can be from 1 through 12.

Note: For channelized OC12 IQ interfaces, channel numbering begins with 1 (:1).

The OC-slice range is the range of SONET/SDH slices. For SDH interfaces, the OC-slice range specifies the bandwidth size required for the interface type you are configuring. SDH (VC-4) interfaces must occupy three consecutive OC-slices per interface, in one of the following forms:

1–3
4–6
7–9
10–12

The interface type is the channelized interface type or data channel you are creating.

Example: Configuring SDH (VC-4) Interfaces

Configure SDH (VC-4) interfaces:

[edit interfaces cstm4-0/2/0]partition 1 oc-slice 1-3 interface-type so;partition 2 oc-slice 4-6 interface-type so;partition 3 oc-slice 7-9 interface-type so;partition 4 oc-slice 10-12 interface-type so;

This configuration creates the interfaces so-0/2/0:1 through so-0/2/0:4.

Configuring Channelized AU-4 Interfaces

To configure a channelized AU-4 interface, include the partition, oc-slice, and interface-type statements at the [edit interfaces cstm4-fpc/pic/port] hierarchy level, specifying the cau4 interface type:

[edit interfaces cstm4-fpc/pic/port]partition partition-number oc-slice oc-slice-range interface-type cau4;

This configuration creates interface cau4-fpc/pic/port:channel.

The partition number is the sublevel interface partition index. For SDH interfaces, the partition number is not correlated with bandwidth size. A channelized STM-4 interface can have from 1 through 4 partition numbers.

Note: For channelized OC12 interfaces, channel numbering begins with 0 (:0). For channelized OC12 interfaces (both IQ and IQE), channel numbering begins with 1 (:1).

The OC-slice range is the range of SONET/SDH slices. For SDH interfaces, the OC-slice range specifies the bandwidth size required for the interface type you are configuring. Channelized AU-4 IQ interfaces must occupy three consecutive OC slices per interface, in one of the following forms:

1–3
4–6
7–9
10–12

The interface type is the channelized interface type or data channel you are creating.

Example: Configuring Channelized AU-4 Interfaces

Configure channelized AU-4 interfaces, using partitions 1 through 4:

[edit interfaces cstm4-0/2/0]partition 1 oc-slice 1-3 interface-type cau4;partition 2 oc-slice 4-6 interface-type cau4;partition 3 oc-slice 7-9 interface-type cau4;partition 4 oc-slice 10-12 interface-type cau4;

This configuration creates the interfaces cau4-0/2/0:1 through cau4-0/2/0:4.

Configuring T3 or Channelized T3 Interfaces Under Channelized AU-4 Interfaces

To configure T3 or channelized T3 interfaces, include the partition and interface-type statements at the [edit interfaces cau4-fpc/pic/port] hierarchy level, specifying the t3 or ct3 interface type:

[edit interfaces]cau4-fpc/pic/port {partition partition-number interface-type t3;}cau4-fpc/pic/port {partition partition-number interface-type ct3;}

This configuration creates the interfaces t3-fpc/pic/port:channel and ct3-fpc/pic/port:channel.

Note: Class-of-service (CoS) rules cannot be applied to an individual channel configured on channelized IQ interfaces. You can only apply CoS rules to the aggregate bit streams.

Example: Configuring T3 or Channelized T3 Interfaces

Configure T3 and channelized T3 interfaces, using partition 1 and partition 2:

[edit interfaces]cau4-0/2/0:1 {partition 1 interface-type t3;}cau4-0/2/0:1 {partition 2 interface-type ct3;}t3-0/2/0:1:1 ct3-0/2/0:1:2;

Configuring T1 or Channelized T1 Interfaces Under Channelized AU-4 Interfaces

To configure T1 or channelized T1 interfaces under channelized AU-4 interfaces, include the partition and interface-type statements at the [edit interfaces cau4-fpc/pic/port] hierarchy level, specifying the t1 or ct1 interface type:

[edit interfaces]cau4-fpc/pic/port {partition partition-number interface-type t1;}cau4-fpc/pic/port {partition partition-number interface-type ct1;}

This configuration creates the interfaces t1-fpc/pic/port:channel and ct1-fpc/pic/port:channel.

Note: Class-of-service (CoS) rules cannot be applied to an individual channel configured on channelized IQ interfaces. You can only apply CoS rules to the aggregate bit streams.

Example: Configuring T1 or Channelized T1 Interfaces Under Channelized AU-4 Interfaces

Configure T1 and channelized T1 interfaces, using partition 1 and partition 2:

[edit interfaces]cau4-0/2/0:1 {partition 1 interface-type t1;}cau4-0/2/0:1 {partition 2 interface-type ct1;}t1-0/2/0:1:1 ct1-0/2/0:1:2;

Configuring T1 or Channelized T1 Interfaces Under Channelized T3 Interfaces

To configure T1 or channelized T1 interfaces under channelized T3 interfaces, include the partition and interface-type statements at the [edit interfaces ct3-fpc/pic/port] hierarchy level, specifying the t1 or ct1 interface type:

[edit interfaces]ct3-fpc/pic/port {partition partition-number interface-type t1;}ct3-fpc/pic/port {partition partition-number interface-type ct1;}

This configuration creates the interfaces t1-fpc/pic/port:channel and ct1-fpc/pic/port:channel.

Note: Class-of-service (CoS) rules cannot be applied to an individual channel configured on channelized IQ interfaces. You can only apply CoS rules to the aggregate bit streams.

Example: Configuring T1 or Channelized T1 Interfaces Under Channelized T3 Interfaces

Configure T1 or channelized T1 interfaces, using partition 3 and partition 4:

[edit interfaces]ct3-0/2/0:1:2 {partition 3 interface-type t1;}ct3-0/2/0:1:2 {partition 4 interface-type ct1;}

This configuration creates interfaces t1-0/2/0:1:2:3 and ct1-0/2/0:1:2:4.

Configuring NxDS0 Interfaces on Channelized OC12/STM4 IQ PICs

Configure channelized NxDS0 IQ interfaces on the channelized T1 IQ interface by including the partition, timeslots, and interface-type statements at the [edit interfaces ct1-fpc/pic/port:channel] hierarchy level, specifying the ds interface type:

[edit interfaces ct1-fpc/pic/port:channel:channel]partition partition-number timeslots time-slot-range interface-type ds;

This configuration creates the interface ds-fpc/pic/port:channel.

The time-slot range is from 1 through 24. You can designate any combination of time slots. To configure ranges, use hyphens. To configure discontinuous time slots, use commas. You can use a combination of ranges and discontinuous time slots:

1,9-18,21

Example: Configuring NxDS0 Interfaces

Configure channelized NxDS0 interfaces, using partition 4 and time slots 1 through 10:

[edit interfaces]ct1-0/2/0:1:2:3 {partition 4 interface-type ds0 timeslots 1-10;}

This configuration creates interface ds-0/2/0:1:2:3:4.