New and Changed Features
This section describes the new features and enhancements to existing features in Junos OS Release 13.2R8 for the PTX Series.
- Hardware
- Class of Service (CoS)
- Interfaces and Chassis
- MPLS
- Network Management and Monitoring
- Routing Policy and Firewall Filters
- Software Installation and Upgrade
Hardware
- CFP-GEN2-CGE-ER4 and CFP-GEN2-100GBASE-LR4 (PTX5000)—The CFP-GEN2-CGE-ER4 transceiver (part number: 740-049763)
provides a duplex LC connector and supports the 100GBASE-ER4 optical
interface specification and monitoring. The CFP-GEN2-100GBASE-LR4
transceiver (part number: 740-047682) provides a duplex LC connector
and supports the 100GBASE-LR4 optical interface specification and
monitoring. The “GEN2” optics have been redesigned with
newer versions of internal components for reduced power consumption.
The following interface module supports the CFP-GEN2-CGE-ER4 and CFP-GEN2-100GBASE-LR4
transceivers. For more information about interface modules, see the Interface Module Reference for your router.
- 100-Gigabit Ethernet PIC with CFP (model number: P1-PTX-2-100GE-CFP)—Supported in Junos OS Release 12.3R5, 13.2R3
[See 100-Gigabit Ethernet 100GBASE-R Optical Interface Specifications.]
- 2-port 100-Gigabit
DWDM OTN PIC (PTX5000)—Starting in Junos OS Release
13.2, the 2-port 100-Gigabit dense wavelength division multiplexing
(DWDM) optical transport network (OTN) PIC is supported on Type 5
FPCs on the PTX5000. The 100-Gigabit DWDM OTN PIC supports the following
features:
- Transparent transport of two 100-Gigabit Ethernet signals with OTU4 framing
- ITU-standard OTN performance monitoring 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
You can use SNMP to manage the PIC based on RFC 3591, Managed Objects for the Optical Interface Type.
[See 100-Gigabit Ethernet OTN Options Configuration Overview.]
- PTX3000 Packet Transport Router—Starting in Junos OS Release 13.2, the Juniper Networks PTX3000 Packet Transport Router is supported. It provides 10-Gigabit Ethernet, 40-Gigabit Ethernet, and 100-Gigabit Ethernet interfaces for large networks and network applications, such as those supported by ISPs. The router accommodates up to eight Flexible PIC Concentrators (FPCs), each of which supports one PIC. The compact design of the PTX3000 router allows up to four chassis to be installed back-to-back in a single four-post rack. The PTX3000 router can be configured with single-phase AC or DC power supply modules.
Class of Service (CoS)
- Virtual LAN queuing and shaping (PTX Series)—Beginning with Junos OS Release 13.2, you can configure queuing
and shaping per VLAN on packet transport routers. To configure per-VLAN
queuing on a packet transport router, include the per-unit-scheduler statement at the [edit interfaces interface-name] hierarchy level. You must also include the shaping-rate rate statement at the [edit class-of-services interface interface-name unit logical-unit-number] hierarchy level. You can specify a maximum of 10 VLANs, and
the aggregated shaping rate for all VLANs cannot exceed 100 Gbps.
Only 100-Gigabit Ethernet interfaces are supported. Aggregated Ethernet
interfaces are not supported. The interface wildcard character (*)
is not supported—for example, the following configuration is
not supported and should not be used: set class-of-service interface et-* unit * shaping-rate 1gset class-of-service interface et-* unit * scheduler-map sch0
[See Configuring Virtual LAN Queuing and Shaping on PTX Series Packet Transport Routers.]
Interfaces and Chassis
- Pre-FEC BER fast
reroute (PTX5000)—Beginning in Junos OS Release
13.2, the 100-Gbps DWDM OTN PIC (P1-PTX-2-100G-WDM) supports pre-forward
error correction (pre-FEC) bit error rate (BER) fast reroute (FRR).
Pre-FEC BER FRR uses the pre-FEC BER as an indication of the condition
of an OTN link. When the pre-FEC BER degrade threshold is reached,
the PIC stops forwarding packets to the remote interface and raises
an interface alarm. Ingress packets continue to be processed. You
can optionally enable backward FRR to inject local pre-FEC status
into the transmitted OTN frames, notifying the remote interface. The
remote interface then reroutes traffic to a different interface. When
backward FRR is enabled, notification of signal degradation occurs
in less time than through a Layer 3 protocol.
[See 100-Gigabit Ethernet OTN Options Configuration Overview.]
- Support for unified
in-service software upgrade (PTX5000)—Starting
with Junos OS 13.2, unified in-service software upgrade (ISSU) is
supported on the PTX5000.
Unified ISSU is supported on the following PICs:
- 10-Gigabit Ethernet PIC with SFP+, Type 5 (model number P1-PTX-24-10GE-SFPP)
- 40-Gigabit Ethernet with CFP, Type 5 (model number P1-PTX-2-40GE-CFP)
- 100-Gigabit Ethernet with CFP, Type 5 (model number P1-PTX-2-100GE-CFP)
- SNMP MIB support for OTN (PTX Series)—Beginning with Junos OS Release 13.2, the enterprise-specific
OTN Interface MIB has been enhanced.
To configure the PIC, which is installed in the specified FPC of a chassis in an OTN, use the set chassis statement at the [edit] hierarchy level.
[See OTN Interface Management MIB.]
- Support for jnxFruMib in jnxBoxAnatomy (PTX
Series)—Beginning with Junos OS Release 13.2,
the enterprise-specific jnxFruMib in jnxBoxAnatomy is supported.
[See jnxBoxAnatomy.]
- SFPP-10G-CT50-ZR (PTX Series)—The
SPFF-10G-CT50-ZR tunable transceiver provides a duplex LC connector
and supports the 10GBASE-Z optical interface specification and monitoring.
The transceiver is not specified as part of the 10-Gigabit Ethernet
standard and is instead built according to Juniper Networks specifications.
Only WAN-PHY and LAN-PHY modes are supported. To configure the wavelength
on the transceiver, use the wavelength statement at the [edit interfaces interface-name optics-options] hierarchy level. The following interface modules support the SPFF-10G-CT50-ZR
transceiver:
- 10-Gigabit Ethernet LAN/WAN OTN PIC with SFP+ (model number: P1-PTX-24-10G-W-SFPP)—Supported in Junos OS Release 13.2R3.
For more information about interface modules, see the “Cables and Connectors” section in the Interface Module Reference for your router.
[See 10-Gigabit Ethernet 10GBASE Optical Interface Specifications and wavelength.]
- SFPP-10G-ZR-OTN-XT
(PTX Series)—The SFPP-10G-ZR-OTN-XT dual-rate
extended temperature transceiver provides a duplex LC connector and
supports the 10GBASE-Z optical interface specification and monitoring.
The transceiver is not specified as part of the 10-Gigabit Ethernet
standard and is instead built according to ITU-T and Juniper Networks
specifications. The following interface modules support the SFPP-10G-ZR-OTN-XT
transceiver:
- 10-Gigabit Ethernet PIC with SFP+ (model number: P1-PTX-24-10GE-SFPP)—Supported in Junos OS Release 12.3R5, 13.2R3, 13.3, and later
- 10-Gigabit Ethernet LAN/WAN OTN PIC with SFP+ (model number: P1-PTX-24-10G-W-SFPP)—Supported in Junos OS Release 12.3R5, 13.2R3, 13.3, and later
For more information about interface modules, see the “Cables and Connectors” section in the Interface Module Reference for your router.
[See 10-Gigabit Ethernet 10GBASE Optical Interface Specifications.]
MPLS
- Ultimate-hop popping (PTX Series)—In Junos OS Release 13.2 and later releases, ultimate-hop popping is supported on packet transport routers.
Network Management and Monitoring
- Real-time performance monitoring support (PTX Series)—Starting in Junos OS Release 13.2, real-time performance monitoring
(RPM) allows the user to perform service-level monitoring. When RPM
is configured on a device, the device calculates network performance
based on packet response time, jitter, and packet loss. The device
gathers RPM statistics by sending out probes to a specified probe
target, identified by an IP address or URL. When the target receives
a probe, it generates responses that are received by the device. You
set the probe options in the probe statement at the [edit services rpm] hierarchy level.
Note: The PTX5000 supports up to 200 concurrent RPM sessions.
Routing Policy and Firewall Filters
- Support for active flow monitoring (PTX Series)—Starting in Junos OS Release 13.2, you can use flow monitoring
to help with network administration. Active flow monitoring on PTX
Series routers allows you to collect sampled packets, then the router
does GRE encapsulation of the packets and sends them to a remote server
for flow processing. The GRE encapsulation includes an interface index
and GRE key field. The GRE encapsulation removes MPLS tags. You configure
one or more port-mirroring instances to define which traffic to sample
and configure a server to receive the GRE encapsulated packets. You
configure a firewall filter on interfaces where you want to capture
flows. You can configure as many as 48 port-mirroring instances.
[See Configuring Active Flow on PTX Series Packet Transport Routers.]
Software Installation and Upgrade
- Unified ISSU support for the 100-Gbps DWDM OTN PIC (PTX5000)—Starting in Junos OS Release 13.2, the 100-Gbps DWDM OTN PIC (P1-PTX-2-100G-WDM) supports unified in-service software upgrade (ISSU) on PTX5000 routers. Unified ISSU enables you to upgrade between two different Junos OS releases with no disruption on the control plane and with minimal disruption of traffic.
- Unified ISSU support (PTX3000)—Starting in Junos OS Release 13.2, unified in-service software upgrade (ISSU) is supported on the PTX3000. Unified ISSU enables you to upgrade between two different Junos OS releases with no disruption on the control plane and with minimal disruption of traffic.