Specifications

•
Pseudowire logical interface device MAC address configuration (MX Series)—Starting
in Junos OS Release 13.3, you can configure a MAC address for a pseudowire logical
interface device that is used for subscriber interfaces over point-to-point MPLS
pseudowires. This feature enables you to specify the MAC address of your choice in
situations in which network constraints require the use of an explicit MAC address.
[See Configuring a Pseudowire Subscriber Logical Interface Device.]
•
Support for synchronizing the CB of an MX2020 router with external BITS timing
sources (MX2020)—Starting in Junos OS Release 13.3, this feature provides
building-integrated timing supply (BITS) input and output support to the two external
clock interfaces (ECI) on the Control Board. You can configure the ECIs for both input
and output BITS. In the absence of any configuration, the ECI is inactive.
You can configure the BITS ECI by using the synchronization statement at the [edit
chassis] hierarchy level. You can view the BITS ECI information by using the show
chassis synchronization extensive command.
[See Understanding Clock Synchronization on MX Series Routers.]
•
Distribution of Ethernet connectivity fault management sessions (MX
Series)—Starting with Junos OS Release 13.3, connectivity fault management (CFM)
sessions operate in distributed mode and can be processed on the Flexible PIC
Concentrator (FPC) on aggregated Ethernet interfaces. As a result, graceful Routing
Engine switchover (GRES) is supported on aggregated Ethernet interfaces. In releases
before Junos OS Release 13.3, CFM sessions operate in centralized mode and are
processed on the Routing Engine. However, CFM sessions are not supported on
aggregated Ethernet interfaces if the interfaces that form the aggregated Ethernet
bundle are in mixed mode.
CFM sessions are distributed by default. To disable the distribution of CFM sessions
and to operate in centralized mode, include the ppm no-delegate-processing statement
at the [edit routing-options ppm] hierarchy level. However, all CFM sessions should
operate in either only distributed or only centralized mode. A mixed operation of
distributed and centralized modes for CFM sessions is not supported.
[See IEEE 802.1ag OAM Connectivity Fault Management Overview.]
•
Redundant logical tunnels (MX Series)—Beginning with Junos OS Release 13.3, when
you connect two devices through logical tunnels, you can create and configure multiple
physical logical tunnels and add them to a virtual redundant logical tunnel to provide
redundancy.
[See Example: Configuring Redundant Logical Tunnels.]
•
Source class accounting (T4000)—Starting with Junos OS Release 13.3R2, source
class usage (SCU) accounting is performed at ingress on a T4000 Type 5 FPC.
•
SFPP-10G-CT50-ZR (MX Series)—Beginning in Junos OS Release 13.3R3, 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
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New and Changed Features