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Configuring SONET/SDH Interface Speed

 

To configure the speed of SONET/SDH interfaces in concatenated mode:

  1. In configuration mode, go to the [edit interfaces interface-name] hierarchy level, where the interface-name is so-fpc/pic/port.
  2. Configure interface speed in concatenated mode.

    For example, each port of 4-port OC12 PIC can be configured to be in OC3 or OC12 speed independently when this PIC is in 4xOC12 concatenated mode.

To configure the speed of SONET/SDH interfaces in nonconcatenated mode:

  1. In configuration mode, go to the [edit interfaces interface-name] hierarchy level, where the interface-name is so-fpc/pic/port.
  2. Configure interface speed in nonconcatenated mode.

    For example, each port of 4-port OC12 PIC can be configured to be in OC3 or OC12 speed independently when this PIC is in 4xOC12 concatenated mode.

To configure the PIC to operate in channelized (multiplexed) mode:

  1. In configuration mode, go to the [edit chassis fpc slot-number pic pic-number] hierarchy level.
  2. Configure the no-concatenate option.
Note

On SONET/SDH OC3/STM1 (Multi-Rate) MIC with SFP, Channelized SONET/SDH OC3/STM1 (Multi-Rate) MIC with SFP, and Channelized OC3/STM1 (Multi-Rate) Circuit Emulation MIC with SFP, you cannot set the interface speed at the [edit interfaces] hierarchy level. To enable the speed on these MICs, you need to set the port speed at the [edit chassis fpc slot-number pic pic-number port port-number] hierarchy level.

For more information about using the non-concatenate statement, see the Junos OS Administration Library.