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.
The MIC6-10G-OTN line cards support dual rate (10GE or
OTU4). To configure OTN on the MIC6-10G-OTN line card, you must configure
the rate on the port to OTU4 by using the rate rate
statement. If you do not configure the rate to OTU4, OTN mode
is not supported on the line card and the interface does not come
up.
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.
See Also
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 thetag-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
orno-prbs
statement at the[edit interfaces interface-name otn-options]
hierarchy level.At the physical interface level,
flexible-ethernet-service
,ethernet-ccc
, andethernet-tcc
encapsulations are supported. Forflexible-ethernet-service
encapsulation, the logical level supportsenet2
,vlan-ccc
, andvlan-tcc
encapsulations.At the logical interface level
dix
,vlan-ccc
, andvlan-tc
c 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
, andextended-vlan-tcc
Logical interface-level encapsulation—
vlan-vpls
VLAN rewrite for
ccc
encapsulationPer 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)
See Also
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)
See Also
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 thetag-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
orno-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
, andethernet-tcc
encapsulations are supported. For theflexible-ethernet-service
encapsulation, the logical level supportsenet2
,vlan-ccc
, andvlan-tcc
encapsulations.At the logical interface level,
dix
,vlan-ccc
, andvlan-tc
c 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
, andextended-vlan-tcc
Logical interface-level encapsulation—
vlan-vpls
VLAN rewrite for
ccc
encapsulationPer-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)
See Also
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
, andextended-vlan-tcc
Logical interface-level encapsulation—
vlan-vpls
VLAN rewrite for
ccc
encapsulationPer-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)
See Also
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.
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
, andextended-vlan-tcc
Logical interface-level encapsulation—
vlan-vpls
VLAN rewrite for
ccc
encapsulationPer-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)
See Also
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)
See Also
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 |
See Also
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 |