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Optical Transceivers

Describes the optics support that the specific line cards and devices provide.

Software Features

The following interface features are supported:

  • Compliant with ITU G.709 and G.798

  • Performance monitoring features such as alarms, threshold-crossing alarms (TCA), OTU/ODU error seconds, and FEC and bit error rate (BER) statistics.

  • SNMP management of the MIC based on RFC 3591, Managed Objects for the Optical Interface Type, including the following:

    • Black Link MIB–jnx-bl.mib

    • IFOTN MIB–jnx-ifotn.mib

    • Optics MIB–jnx-optics.mib

    • FRU MIB–jnx-fru.mib

  • User-configurable optics options:

    • Modulation format: 16QAM, 8QAM, QPSK

    • FEC mode (15% SD-FEC or 25% SD-FEC)

    • Differential and non-differential encoding modes

    • Transmit (TX) laser enable and disable

    • TX output power

    • Wavelength

    • TCAs

  • IEEE 802.1 ag OAM

  • IEEE 802.3ah OAM

  • IFINFO/IFMON

  • IEEE 802.3ad link aggregation

  • Flexible Ethernet services encapsulation

  • Flexible VLAN tagging

  • Source address MAC accounting per logical interface

  • Source address MAC filter per port

  • Source address MAC filter per logical interface

  • Destination address MAC filter per port

  • Up to 8000 logical interfaces shared across all ports on a single Packet Forwarding Engine.

OTN Alarms and Defects

The following are OTN alarms and defects that are supported:

Optical Channel (OC) Alarms and Defects

  • OC-LOS—Loss Of Signal

  • OC-LOF—Loss Of Frame

  • OC-LOM—Loss Of Multiframe

  • OC-Wavelength-Lock—Wavelength Lock

Optical Channel Data Unit (ODU) Defects

  • ODU-AIS—ODU Alarm Indication Signal

  • ODU-BDI—ODU Backward Defect Indication

  • ODU-IAE—ODU Incoming Alignment Error

  • ODU-LCK—ODU Locked

  • ODU-LTC—ODU Loss of Tandem Connection

  • ODU-OCI—ODU Open Connection Error

  • ODU-SSF—ODU Server Signal Failure

  • ODU-TSF—ODU Trail Signal Failure

  • ODU-TTIM—ODU Trail Trace Identifier Mismatch (TTIM)

Optical Channel Transport Unit (OTU) Defects

  • OTU-AIS—OTU Alarm Indication Signal

  • OTU-BDI—OTU Backward Defect Indication

  • OTU-BIAE—OTU Backward Incoming Alignment Error

  • OTU-FEC-DEG—OTU Forward Error Correction Degrade

  • OTU-FEC-EXCESS-FEC—OTU FEC Excessive FEC Errors

  • OTU-IAE—OTU Incoming Alignment Error

  • OTU-SSF—OTU Server Signal Failure

  • OTU-TSF—OTU Trail Signal Failure

  • OTU-TTIM—OTU Trail Trace Identifier Mismatch

Threshold Crossing Alarms

TCA are alarms that are activated when a certain configurable threshold —near-end measurement threshold or far-end measurement threshold—is crossed and remains so until the end of the 15 minutes interval for parameters such as OTU and ODU. The following alarms are supported:

  • Background block error threshold (BBE)

  • Errored seconds threshold (ES)

  • Severely errored seconds threshold (SES)

  • Unavailable seconds threshold (UES)

Supported PICs

Table 1 describes PICs that support optics.

Table 1: Supported PICs
PIC Release
QFX10K-12C-DWDM Junos OS Release 17.2R1 and later