Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Understanding Optical Transport Network (OTN)

 

Use this topic for overview information about Optical Transport Network support provided by specific line cards and devices.

10-Gigabit Ethernet OTN Options Configuration Overview

MX240, MX480, MX960, MX2010, MX2020, T320, T640, T1600, PTX3000, and PTX5000 routers support Optical Transport Network (OTN) interfaces, including the 10-Gigabit Ethernet DWDM OTN PIC, and provide ITU-T G.709 support. Use the set otn-options statement at the [edit interfaces if-fpc/pic/port] hierarchy level to configure the OTN options.

MX2020, MX2010, MX960, MX480, and MX240 routers support OTN interfaces on MPC5E and MPC6E. MPC5E-40G10G and MPC5EQ-10G40G support OTN on 10-Gigabit Ethernet interfaces but not on 40-Gigabit Ethernet interfaces. The OTN MIC MIC6-10G-OTN on MPC6E supports OTN on 10-Gigabit Ethernet interfaces on MX2020 and MX2010 routers. OTN support on the specified MX Series routers includes:

  • International Telecommunications Union (ITU)-standard OTN performance monitoring and alarm management

  • Transparent transport of 24 10-Gigabit Ethernet signals with optical channel data unit 2 (ODU2) and ODU2e framing on a per-port basis

  • Pre-forward error correction (pre-FEC)-based bit error rate (BER). Fast reroute (FRR) uses the pre-FEC BER as an indication of the condition of an OTN link.

To configure the OTN options on the specified MX routers, use the set otn-options statement at the [edit interfaces interfaceType-fpc/pic/port] hierarchy level.

See also

100-Gigabit Ethernet OTN Options Configuration Overview

PTX Series routers support optical transport network (OTN) interfaces, including the 100-Gigabit DWDM OTN PIC, which supports:

  • Transparent transport of two 100-Gigabit Ethernet signals with Optical Channel Transport Unit 4 (OTU4) framing.

  • International Telecommunications Union (ITU)-standard OTN performance monitoring (PM) and alarm management.

  • Dual polarization quadrature phase shift keying (DP-QPSK) modulation and soft-decision forward error correction (SD-FEC) for long haul and metro applications.

  • Pre-forward error correction (pre-FEC)-based bit error rate (BER) monitoring. Pre-FEC BER monitoring uses the pre-FEC BER as an indication of the condition of an OTN link. See Understanding Pre-FEC BER Monitoring and BER Thresholds for more information.

For more information about the 100-Gigabit DWDM OTN PIC, see 100-Gigabit DWDM OTN PIC in the PTX Series Interface Module Reference.

PTX Series routers also support the 100-Gigabit Ethernet OTN PIC (P2-100GE-OTN), which provides four 100-Gigabit Ethernet interfaces, independently configurable in LAN PHY framing mode or in optical channel transport unit 4 (OTU4) mode. See Understanding the P2-100GE-OTN PIC for more information.

See Supported OTN Options on PTX Series Routers for a comparison of the features supported on PTX Series OTN PICs.

MX2020, MX2010, MX960, MX480, and MX240 routers support OTN interfaces on MPC5E and MPC6E. MPC5E-100G10G and MPC5EQ-100G10G support 100-Gigabit Ethernet OTN interfaces and 10-Gigabit Ethernet OTN interfaces on MX240, MX480, and MX960 routers. The OTN MIC MIC6-100G-CFP2 on MPC6E supports OTN on 100-Gigabit Ethernet interfaces on MX2020 and MX2010 routers. OTN support on the specified MX Series routers includes:

  • International Telecommunications Union (ITU)-standard OTN performance monitoring (PM) and alarm management

  • Transparent transport of two 100-Gigabit Ethernet signals with optical channel transport unit 4 (OTU4) framing.

  • Generic forward error correction (Generic FEC)

To configure the OTN options for PTX Series routers and specific MX Series routers, use the set otn-options statement at the [edit interfaces interfaceType-fpc/pic/port] hierarchy level.

Use the set optics-options statement at the [edit interfaces interfaceType-fpc/pic/port] hierarchy level to configure the optics options.

Use the show interfaces extensive, show interfaces diagnostics optics (Gigabit Ethernet, 10-Gigabit Ethernet, 40-Gigabit Ethernet, 100-Gigabit Ethernet, and Virtual Chassis Port), and show interfaces transport pm commands to view optics and OTN PM information. To display the current time interval and clear the channel service unit (CSU) alarm and defect counters, use the clear interfaces interval command.

Understanding the P1-PTX-24-10G-W-SFPP PIC

Starting from Junos OS Release 14.2, a 24–port 10-Gigabit Ethernet OTN PIC—P1-PTX-24-10G-W-SFPP—is supported on the FPC-PTX-P1-A and FPC2-PTX-P1A FPCs in PTX5000 routers, and the FPC-SFF-PTX-P1-A and FPC-SFF-PTX-T FPCs in PTX3000 routers. The P1-PTX-24-10G-W-SFPP PIC provides twenty-four 10-Gigabit Ethernet interfaces, that are independently configurable in LAN PHY or WAN PHY framing mode or in optical channel transport unit in OTU2e, OTU1e, or OTU2 mode.

The following sections explain this PIC in detail:

Interface Features

The following interface features are supported on the P1-PTX-24-10G-W-SFPP PIC:

  • Twenty-four 10-Gigabit Ethernet interfaces, which are independently configurable in LAN PHY or WAN PHY mode or in OTU2e, OTU1e, or OTU2 signal mode. Each interface is terminated by means of a CFP2 transceiver.

  • The interfaces are named with prefix et.

  • Gigabit Ethernet local loopback.

  • Link-level pause frames—You can halt the Ethernet interface from transmitting packets for a configured period of time.

  • Interface hold timer and interface damping—You can set the hold-time statement (in milliseconds) to damp interface transitions.

  • External clock.

  • Nonstandard tag protocol identifier (TPID):

    • For each 10-Gigabit Ethernet port, you can configure up to eight TPIDs by using the tag-protocol-id statement at the [edit interfaces interface-name gigether-options ethernet-switch-profile] hierarchy level.

    • The tag-protocol-id statement can be configured only on the first port (port 0) of the PIC. If any other (nonzero) port has the tag-protocol-id configuration, the Routing Engine registers an error in the system log and the configuration is ignored.

    • The tag-protocol-id statement configured on port 0 of the PIC also applies to the rest of the ports on that PIC.

  • Generic forward error correction (GFEC),ultra forward error correction (UFEC), enhanced forward error correction (EFEC), and no-FEC modes of operation are supported.

  • Diagnostics tools:

    • Line loopback

    • Local loopback

  • Fast reroute (FRR)—Based on configurable pre-FEC, bit error rate (BER) is supported and is configured using the ber-threshold-signal-degrade statement at the [edit interfaces interface-name otn-options signal-degrade] hierarchy level.

  • jnx-ifotn.mib and otn-mib as defined in RFC 3591. Note that according to Junos OS security standard, configurable parameters are not supported through SNMP. Only the get operation is available through SNMP.

  • FEC statistics—corrected errors and corrected error ratio.

  • OTN payload pseudorandom binary sequence (PRBS) generation and checking by enabling or disabling PRBS with the prbs or no-prbs statement at the [edit interfaces interface-name otn-options] hierarchy level.

  • At the physical interface level, flexible-ethernet-service, ethernet-ccc, and ethernet-tcc encapsulations are supported. For flexible-ethernet-service encapsulation, the logical level supports enet2, vlan-ccc, and vlan-tcc encapsulations.

  • At the logical interface level dix, vlan-ccc, and vlan-tcc encapsulations are supported.

  • SNMP management of the PIC based on RFC 3591, Definitions of Managed Objects for the Optical Interface Type:

    • Set functionality

    • Juniper Networks Black-Link MIB

    • IFOTN MIB

    • Optics MIB

    • FRU MIB

  • 15-minute and 1-day performance monitoring and historic statistics.

    • Near-end and far-end performance monitoring

    • Threshold-crossing alerts

    • BER performance monitoring

    • FEC performance monitoring

    • Optical performance monitoring

The following features are not supported on the P1-PTX-24-10G-W-SFPP PIC:

  • Source MAC learning for accounting

  • MAC policing

  • Physical interface-level encapsulations—vlan-ccc, extended-vlan-ccc, and extended-vlan-tcc

  • Logical interface-level encapsulation—vlan-vpls

  • VLAN rewrite for ccc encapsulation

  • Per queue flow control

  • Generic framing procedure-framed (GFP-F) mapping modes over OTN

  • General communication channel (GCC)

  • OTN interface-level Automatic Protection Switching (APS)

  • Insertion, monitoring, and display of OTN header overhead byte

  • Optical harness support

  • Transport interface and state model (GR-1093)

  • Trace tone support

Layer 2 and Layer 3 Features

The following Layer 2 and Layer 3 features are supported on the P1-PTX-24-10G-W-SFPP PIC:

  • MAC detect link up and link down based on local fault signal or remote fault signal.

  • MAC statistics.

  • Flow control.

  • MAC oversized packet counters based on default MTU value or user-configured MTU value.

  • Per-port destination address MAC filter.

  • Per-port source address MAC filter.

  • Per-physical interface source address MAC filter.

  • Per logical interface source address MAC accounting.

  • Maximum of 1000 source MAC filter per physical interface.

  • Maximum of 32,000 filter terms to share across all filter features.

  • Aggregated Ethernet supports 64 child links that can be configured using the set chassis aggregated-devices maximum-links configuration command.

  • Maximum of 1024 logical interfaces on an aggregated Ethernet physical interface.

  • Support for V LAN tagging, flexible VLAN tagging, and stacked VLAN tagging.

  • LACP.

  • Link protection.

  • 802.3 ah OAM.

  • 802.1 ag OAM.

  • MPLS FRR.

  • SNMP.

  • Supports per-VLAN queuing (using Packet Forwarding Engine).

OTN Alarms and Defects

The following OTN alarms and defects are supported on the P1-PTX-24-10G-W-SFPP PIC:

  • LOS—Loss Of Signal

  • LOF—Loss Of Frame

  • LOM—Loss Of Multiframe

  • SSF—Server Signal Failure

  • TSF—Trail Signal Fail

  • OTU-FEC-DEG—Forward Error Correction Degraded

  • OTU-FEC-EXE—Excessive Errors, FEC_FAIL from the transponder

  • OTU-AIS—Alarm Indication Signal or all ones signal

  • OTU-BDI—Backward Defect Identification

  • OTU-IAE—Incoming Alignment Error

  • OTU-BIAE—Backward Incoming Alignment Error

  • OTU-TTIM—Destination Access Point Identifier [DAPI], Source Access Point Identifier [SAPI], or both mismatch from expected to received

  • OTU-SD—Signal Degrade

  • OTU-SF—Signal Fail

  • CSF—Client Signal Failure

  • ODU-LCK—(ODU lock triggers for PM [path monitoring])

  • ODU-AIS—(alarm indication signal or all ones signal)

  • ODU-OCI—(open connection error)

  • ODU-BDI—(backward defect indication)

  • ODU-IAE—(incoming alignment error)

  • ODU-DAPI-TTIM—DAPI or DAPI/SAPI mismatch from expected to receive

  • ODU-SAPI-TTIM—SAPI or DAPI/SAPI mismatch from expected to receive

  • ODU-BEI—Backward Error Indication

  • ODU-SSF—Server Signal Fail

  • ODU-TSF—Trail Signal Fail

  • ODU-SD—Signal Degrade

  • ODU-SF—Signal Fail

  • OPU-PTM—Payload Type Mismatch

TCA Alarms

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 minute 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 (UAS)

Understanding the features of ACX6360

Starting in Junos OS Release 18.2R1, the ACX6360 routers with CFP2-DCO pluggable coherent optics, provide high density long haul OTN transport solution.

The following sections explain the features in detail:

Interface Features

The following interface features are supported on the ACX6360:

  • Compliant with ITU G.709.

  • Supports 8 CFP2 DCO optical modules.

  • Supports minimum channel spacing of 6.25GHz.

  • Ethernet pause frames—You can halt the Ethernet interface from transmitting packets for a configured period of time.

  • Soft-decision forward error correction mode (SDFEC)-QPSK-100G, 8QAM-200G and 16QAM-200G modes of operation are supported.

  • Diagnostics tools:

    • Line loopback

    • Local loopback

  • Fast reroute (FRR)—Based on configurable pre-FEC or configurable Q threshold for signal degrade.

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

    • Black Link MIB—jnx-bl.mib

    • IFOTN MIB—jnx-ifotn.mib

    • Optics MIB—jnx-optics.mib

    • FRU MIB—jnx-fru.mib

  • Threshold-crossing alerts

  • BER performance monitoring

  • FEC performance monitoring

  • Optical performance monitoring

OTN Alarms and Defects

The following OTN alarms and defects are supported on the ACX6360 routers:

  • SSF—Server Signal Failure

  • TSF—Trail Signal Fail

  • OTU-AIS—Alarm Indication Signal or all ones signal

  • OTU-BDI—Backward Defect Identification

  • OTU-IAE—Incoming Alignment Error

  • OTU-BIAE—Backward Incoming Alignment Error

  • OTU-TTIM—Destination Access Point Identifier [DAPI], Source Access Point Identifier [SAPI], or both mismatch from expected to received

  • OTU-SD—Signal Degrade

  • OTU-SSF—Server Signal Fail

  • OTU-TSF—Trail Signal Fail

  • PRE_FEC_SD

  • FE_PRE_FEC_SD

  • ODU-LCK—(ODU lock triggers for PM [path monitoring])

  • ODU-AIS—(alarm indication signal or all ones signal)

  • ODU-OCI—(open connection error)

  • ODU-BDI—(backward defect indication)

  • ODU-IAE—(incoming alignment error)

  • ODU-TTIM—DAPI or SAPI mismatch from expected to receive

  • ODU-BEI—Backward Error Indication

  • ODU-LTC—Loss of tandem connection

  • ODU-SSF—Server Signal Fail

  • ODU-TSF—Trail Signal Fail

  • ODU-CSF—Client Signal Fail

  • ODU-SD—Signal Degrade

  • ODU-SF—Signal Fail

  • OPU-PTM—Payload Type Mismatch

TCA Alarms

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 minute 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 (UAS)

Understanding the P2-100GE-OTN PIC

Starting with Junos OS Release 14.1R2 and 14.2, a 100-Gigabit Ethernet OTN PIC—P2-100GE-OTN—is supported on the FPC2-PTX-P1A FPC in PTX5000 routers. The P2-100GE-OTN PIC provides 4-port 100-Gigabit Ethernet interfaces, which are independently configurable in LAN PHY framing mode or in optical channel transport unit 4 (OTU4) mode. Each interface is terminated by means of a CFP2 transceiver. The FPC2-PTX-P1A FPC supports two P2-100GE-OTN PICs, in which each 100-Gigabit Ethernet port is mapped to a Packet Forwarding Engine in the FPC.

Starting from Junos OS Release 15.1, you can configure the interfaces on the P2-100GE-OTN PIC on PTX5000 routers, to be a part of the mixed rates and mixed mode aggregated Ethernet bundles.

For information about mixed rates, see Understanding Mixed Rates and Mixed Modes on Aggregated Ethernet Bundles.

Starting from Junos OS Release 15.1, you can configure port-based pseudowire class of service (CoS) classification which includes Layer 3 IPv4, IPv6, and MPLS classification for interfaces with ethernet-ccc encapsulation.

The following sections explain this PIC in detail:

Interface Features

The following interface features are supported on a P2-100GE-OTN PIC:

  • 4-port 100-Gigabit Ethernet interfaces, which are independently configurable in LAN PHY framing mode or in OTU4 signal mode. Each interface is terminated by means of a CFP2 transceiver.

  • Each port maps to a single Packet Forwarding Engine in the FPC2-PTX-P1A FPC.

  • The interfaces are named with prefix et.

  • Gigabit Ethernet local loopback.

  • Link-level pause frames—You can halt the Ethernet interface from transmitting packets for a configured period of time.

  • Interface hold timer and interface damping—You can set the hold-time statement (in milliseconds) to damp interface transitions.

  • External clock

  • Nonstandard tag protocol identifier (TPID):

    • For each 100-Gigabit Ethernet port, you can configure up to eight TPIDs by using the tag-protocol-id statement at the [edit interfaces interface-name gigether-options ethernet-switch-profile] hierarchy level.

    • The tag-protocol-id statement can be configured only on the first port (port 0) of the PIC. If any other (nonzero) port has the tag-protocol-id configuration, the Routing Engine registers an error in the system log and the configuration is ignored.

    • The tag-protocol-id statement configured on port 0 of the PIC also applies to the rest of the ports on that PIC.

  • The interface Link Down event always generates an interrupt; however, the interface Link Up event does not generate an interrupt. Therefore, the interface link-up event is detected during the 1-second PIC periodic polling process.

  • Generic forward error correction (GFEC) (G.709) and no-FEC modes of operation.

  • Diagnostics tools:

    • Line loopback

    • Local loopback

  • Fast reroute (FRR)—Based on configurable pre-FEC, bit error rate (BER) is supported and is configured using the ber-threshold-signal-degrade statement at the [edit interfaces interface-name otn-options signal-degrade] hierarchy level.

  • jnx-ifotn.mib and otn-mib as defined in RFC 3591. Note that according to Junos OS security standard, configurable parameters are not supported through SNMP. Only the get operation is available through SNMP.

  • FEC statistics—corrected errors and corrected error ratio.

  • OTN payload pseudorandom binary sequence (PRBS) generation and checking by enabling or disabling PRBS with the prbs or no-prbs statement at the [edit interfaces interface-name otn-options] hierarchy level.

  • Optical channel data unit (ODU)-level delay measurement.

  • At the physical interface level, flexible-ethernet-service, ethernet-ccc, and ethernet-tcc encapsulations are supported. For the flexible-ethernet-service encapsulation, the logical level supports enet2, vlan-ccc, and vlan-tcc encapsulations.

  • At the logical interface level, dix, vlan-ccc, and vlan-tcc encapsulations are supported.

  • Interoperability between 100-Gigabit Ethernet interfaces with CFP transceiver and 100-Gigabit Ethernet interfaces with CFP2 transceiver in LAN PHY framing mode and in OTU4 mode.

The following features are not supported on the P2-100GE-OTN PIC:

  • Source MAC learning for accounting

  • MAC policing

  • Physical interface-level encapsulations—vlan-ccc, extended-vlan-ccc, and extended-vlan-tcc

  • Logical interface-level encapsulation—vlan-vpls

  • VLAN rewrite for ccc encapsulation

  • Per-queue flow control

  • Generic framing procedure-framed (GFP-F) mapping modes over OTN

  • General communication channel (GCC)

  • OTN interface-level Automatic Protection Switching (APS)

  • Insertion, monitoring, and display of OTN header overhead byte

  • Black link MIB for integration with transponders

  • Optical harness support

  • Transport interface and state model (GR-1093)

  • Trace tone support

  • 15-minute and 1-day performance monitoring counters and historic counters

Layer 2 and Layer 3 Features

The following Layer 2 and Layer 3 features are supported on the P2-100GE-OTN PIC:

  • MAC detect link up and link down based on local fault signal or remote fault signal.

  • MAC statistics.

  • Flow control.

  • MAC oversized packet counters based on default MTU value or user-configured MTU value.

  • Per-port destination address MAC filter.

  • Per-port source address MAC filter.

  • Per-physical interface source address MAC filter.

  • Per-logical interface source address MAC accounting.

  • Maximum of 1000 source MAC filter per physical interface.

  • Maximum of 32,000 filter terms to share across all filter features.

  • Aggregated Ethernet supports 64 child links that can be configured using the set chassis aggregated-devices maximum-links configuration command.

  • Maximum of 1024 logical interfaces on an aggregated Ethernet physical interface.

  • Support for VLAN tagging, flexible VLAN tagging, and stacked VLAN tagging.

  • LACP.

  • Link protection.

  • 802.3 ah OAM.

  • 802.1 ag OAM.

  • MPLS FRR.

  • SNMP.

  • Supports per-VLAN queuing (using Packet Forwarding Engine).

OTN Alarms and Defects

The following OTN alarms and defects are supported on the P2-100GE-OTN PIC:

  • LOS—Loss Of Signal

  • LOF—Loss Of Frame

  • LOM—Loss Of Multiframe

  • OTU—Degrade

  • OTU—AIS

  • OTU—IAE

  • OTU—BDI

  • OTU—TTIM

  • OTU—Signal Degrade

  • OTU—Signal Fail

  • ODU—Signal Fail

  • OTU-FEC—Degrade

  • OTU-FEC—Excessive errors

  • ODU—Signal Degrade

  • ODU—AIS

  • ODU—BDI

  • ODU—OCI

  • ODU—LCK

  • ODU—TTIM

  • OPU—PTM

TCA Alarms

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 minute 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 (UAS)

Understanding the MIC3-100G-DWDM MIC

Starting from Junos OS Release 15.1F5, the 100-Gigabit DWDM OTN MIC—MIC3-100G-DWDM—is supported on MPC3E (MX-MPC3E-3D) and MPC3E NG (MPC3E-3D-NG) on the MX240, MX480, MX960, MX2010, and MX2020 routers. The MIC3-100G-DWDM MIC provides a single 100-Gigabit Ethernet interface port that supports DP-QPSK with coherent reception and OTU4 and OTU4 (v) framing modes.

The interfaces on MIC3-100G-DWDM MIC are named with prefix et. For more information, see Interface Naming Overview.

The following sections explain the features of this MIC in detail:

Interface Features

The following interface features are supported on the MIC3-100G-DWDM MIC:

  • Single port 100-Gigabit Ethernet interface with OTU4 (v) framing. DP-QPSK modulation with coherent reception using a CFP2-ACO DWDM optical transceiver.

  • Gigabit Ethernet local loopback.

  • Diagnostics tools:

    • Line loopback

    • Local loopback

    • Optical Channel Data Unit (ODU) Open Connection Error

    • Optical Channel Data Unit (ODU) Lock Maintenance Signal

  • Types of forward error corrections (FEC):

    • GFEC (generic forward error correction)

    • HGFEC (high gain forward error correction)

    • SDFEC (soft-decision forward error correction)

  • The following MIB modules continue to be supported (and no new MIB is introduced):

    • MIB module to describe Black Link extension to RFC 3591 (jnxoptIfExtMibModule)

    • MIB module to manage the OTN interface (jnxIfOtnMib)

    • MIB module to manage the Optics interface (jnxIfOpticsMib)

    • MIB module to manage OTN FRUs (jnxFruMib)

  • Interoperability with the 100-Gigabit DWDM OTN PIC (P1-PTX-2-100G-WDM) is not supported.

  • Support for interoperability with other vendors’ 100 Gigabit Ethernet interfaces.

  • Source MAC learning for accounting

  • MAC policing

  • Physical interface-level encapsulations—vlan-ccc, extended-vlan-ccc, and extended-vlan-tcc

  • Logical interface-level encapsulation—vlan-vpls

  • VLAN rewrite for ccc encapsulation

  • Per-queue flow control

  • 15-minute and 1-day performance monitoring and historic statistics.

    • Near-end and far-end performance monitoring

    • Threshold-crossing alarms

    • BER performance monitoring

    • FEC performance monitoring

    • Optical performance monitoring

  • Insertion, monitoring, and display of OTN header overhead

  • Transport interface and state model (GR-1093)

Layer 2 and Layer 3 Features

The following Layer 2 and Layer 3 features are supported on the MIC3-100G-DWDM MIC:

  • Per-port destination address MAC filter.

  • Per-port source address MAC filter.

  • Per-physical interface source address MAC filter.

  • Maximum of 1000 source MAC filter per physical interface.

  • Maximum of 32,000 filter terms to share across all filter features.

  • Flexible VLAN tagging.

  • 802.3 ah OAM.

  • 802.1 ag OAM.

OTN Alarms and Defects

The following OTN alarms and defects are supported on the MIC3-100G-DWDM MIC:

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-BIAE—ODU Backward Incoming Alignment Error

  • 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

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 Forward Error Correction 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

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)

Understanding the PTX-5-100G-WDM PIC

Starting with Junos OS Release 15.1F6, the 5-port 100-Gigabit DWDM OTN PIC—PTX-5-100G-WDM—is supported on the PTX3000 and the PTX5000 routers. The PTX-5-100G-WDM PIC provides five 100-Gigabit Ethernet interface ports that support dual-polarization quadrature phase shift keying (DP-QPSK) modulation with coherent reception and OTU4 and OTU4 (v) framing modes.

The interfaces on the PTX-5-100G-WDM PIC are named with the prefix et. For more information, see Interface Naming Overview.

Note

The 5-port 100-Gigabit DWDM OTN PIC is not directly interoperable with the 2-port 100-Gigabit DWDM OTN PIC (P1-PTX-2-100G-WDM), but they can both operate over the same DWDM line system.

The following sections explain the features of this PIC in detail:

Interface Features

The following interface features are supported on the PTX-5-100G-WDM PIC:

  • Five-port 100-Gigabit Ethernet interface with OTU4 (v) framing and DP-QPSK modulation with coherent reception using a CFP2-ACO DWDM optical transceiver.

  • Gigabit Ethernet local loopback.

  • Diagnostics tools:

    • Line loopback

    • Local loopback

    • Optical Channel Data Unit (ODU) Open Connection Error

    • Optical Channel Data Unit (ODU) Lock Maintenance Signal

  • Types of forward error corrections (FEC):

    • GFEC (generic forward error correction)

      Note

      GFEC mode is not supported on Junos OS Release 15.1F6. Junos OS Release 15.1F6-S1 supports GFEC mode. Contact customer support for the Junos OS Release 15.1F6-S1.

    • SDFEC (soft-decision forward error correction)

  • The following MIB features continue to be supported (and no new MIB is introduced):

    • MIB module to describe Black Link extension to RFC 3591 (jnxoptIfExtMibModule). The Black Link extension enables an optical transceiver of a vendor to introduce an optical signal over an optical network from another vendor.

    • MIB module to manage the OTN interface (jnxIfOtnMib)

    • MIB module to manage the Optics interface (jnxIfOpticsMib)

    • MIB module to manage OTN FRUs (jnxFruMib)

  • Interoperability with other vendors’ 100 Gigabit-Ethernet interfaces.

  • Source MAC learning for accounting

  • MAC policing

  • Physical interface-level encapsulations—vlan-ccc, extended-vlan-ccc, and extended-vlan-tcc

  • Logical interface-level encapsulation—vlan-vpls

  • VLAN rewrite for ccc encapsulation

  • Per-queue flow control

  • 15-minute and 1-day performance monitoring and historic statistics.

    • Near-end and far-end performance monitoring

    • Threshold-crossing alarms

    • BER performance monitoring

    • FEC performance monitoring

    • Optical performance monitoring

  • Insertion, monitoring, and display of OTN header overhead

  • Transport interface and state model (GR-1093)

Layer 2 and Layer 3 Features

The following Layer 2 and Layer 3 features are supported on the PTX-5-100G-WDM PIC:

  • Per-port destination address MAC filter.

  • Per-port source address MAC filter.

  • Per-physical interface source address MAC filter.

  • Maximum of 1000 source MAC filter per physical interface.

  • Maximum of 32,000 filter terms to share across all filter features.

  • Flexible VLAN tagging.

  • 802.3 ah OAM.

  • 802.1 ag OAM.

OTN Alarms and Defects

The following OTN alarms and defects are supported on the PTX-5-100G-WDM PIC:

Optical Channel 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-BIAE—ODU Backward Incoming Alignment Error

  • 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

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 Forward Error Correction 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

Threshold-crossing alarms (TCAs) 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-minute 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)

Understanding the PTX10K-LC1104 Line Card

The PTX10K-LC1104 line card provides up to 1.2 Tbps packet forwarding for cloud providers, service providers, and enterprises that need coherent dense wavelength-division multiplexing (DWDM) with MACsec security features.

The PTX10K-LC1104 line card is supported on Junos OS Release 18.3R1 and later.

The following sections explain the features of the PTX10K-LC1104 line card in detail:

Software Features

The following interface features are supported on the PTX10K-LC1104:

  • Compliant with ITU G.709 and G.798

  • Performance monitoring features such as alarms, threshold-crossing alarms, 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% SDFEC or 25% SDFEC)

    • Differential and non-differential encoding modes

    • Transmit (TX) laser enable and disable

    • TX output power

    • Wavelength

    • Threshold crossing alarms (TCAs)

  • IEEE 802.1ag 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 PFE

OTN Alarms and Defects

The following OTN alarms and defects are supported on the PTX10K-LC1104 line card:

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

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 Forward Error Correction 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

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)

Interface Mapping and Modulation format for ACX6360

ACX6360 routers supports 8 CFP2-DCO optical modules. For each CFP2-DCO optical module, 1 ot interface is created. Hence, 8 ot interfaces are created for ACX6360 routers. ACX6360 routers support only 100GE et interfaces and up to 2 et interfaces can be mapped to 1 ot interface, depending on the configured CFP2-DCO rate- 100G or 200G.

The optical interface to et mapping is displayed in the following table:

“ot-“ interface

Modulation Format

Mapped “et” interface(s)

ot-0/1/0

QPSK-100G

et-0/1/0

8QAM-200G

et-0/1/0

et-0/1/1

16QAM-200G

et-0/1/0

et-0/1/1

ot-0/1/1

QPSK-100G

et-0/1/2

8QAM-200G

et-0/1/2

et-0/1/3

16QAM-200G

et-0/1/2

et-0/1/3

ot-0/1/2

QPSK-100G

et-0/1/4

8QAM-200G

et-0/1/4

et-0/1/5

16QAM-200G

et-0/1/4

et-0/1/5

ot-0/1/3

QPSK-100G

et-0/1/6

8QAM-200G

et-0/1/6

et-0/1/7

16QAM-200G

et-0/1/6

et-0/1/7

ot-0/1/4

QPSK-100G

et-0/1/8

8QAM-200G

et-0/1/8

et-0/1/9

16QAM-200G

et-0/1/8

et-0/1/9

ot-0/1/5

QPSK-100G

et-0/1/10

8QAM-200G

et-0/1/10

et-0/1/11

16QAM-200G

et-0/1/10

et-0/1/11

ot-0/1/6

QPSK-100G

et-0/1/12

8QAM-200G

et-0/1/12

et-0/1/13

 

16QAM-200G

et-0/1/12

et-0/1/13

ot-0/1/7

QPSK-100G

et-0/1/14

8QAM-200G

et-0/1/14

et-0/1/15

16QAM-200G

et-0/1/14

et-0/1/15

Interface Mapping and Modulation format for PTX10K-LC1104 Line Card

The PTX10K-LC1104 line card supports 3 optical modules and 2 ports per optical modules. 2 ot interfaces are created for an optical module. Hence, 6 ot interfaces are created for a line card. The optical interface to et interface mapping is shown in the following table:

“ot-“ interface

Modulation Format

Mapped “et” interface(s)

ot-0/0/0

QPSK

et-x/0/0

8QAM

et-x/0/0

et-x/0/1

16QAM

et-x/0/0

et-x/0/1

ot-0/0/1

QPSK

et-x/0/2

8QAM

et-x/0/1

et-x/0/2

16QAM

et-x/0/2

et-x/0/3

ot-0/0/2

QPSK

et-x/0/4

8QAM

et-x/0/4

et-x/0/5

16QAM

et-x/0/4

et-x/0/5

ot-0/0/3

QPSK

et-x/0/6

8QAM

et-x/0/5

et-x/0/6

16QAM

et-x/0/6

et-x/0/7

ot-0/0/4

QPSK

et-x/0/8

8QAM

et-x/0/8

et-x/0/9

16QAM

et-x/0/8

et-x/0/9

ot-0/0/5

QPSK

et-x/0/10

8QAM

et-x/0/9

et-x/0/10

16QAM

et-x/0/10

et-x/0/11

Release History Table
Release
Description
Starting from Junos OS Release 15.1F5, the 100-Gigabit DWDM OTN MIC—MIC3-100G-DWDM—is supported on MPC3E (MX-MPC3E-3D) and MPC3E NG (MPC3E-3D-NG) on the MX240, MX480, MX960, MX2010, and MX2020 routers.
Starting from Junos OS Release 15.1, you can configure the interfaces on the P2-100GE-OTN PIC on PTX5000 routers, to be a part of the mixed rates and mixed mode aggregated Ethernet bundles.
Starting from Junos OS Release 15.1, you can configure port-based pseudowire class of service (CoS) classification which includes Layer 3 IPv4, IPv6, and MPLS classification for interfaces with ethernet-ccc encapsulation.