Disabling A Physical Interface - Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual

JUNOS 10.1 Network Interfaces Configuration Guide
To enable unidirectional link mode on a physical interface, include the
statement at the
NOTE: Unidirectional link mode is currently supported on only the following hardware:
The transmit-only interface is always operationally up. The operational status of the
receive-only interface depends only on local faults; it is independent of remote faults
and of the status of the transmit-only interface.
On the parent interface, you can configure attributes common to both interfaces,
such as clocking, framing, gigether-options, and sonet-options. On each of the
unidirectional interfaces, you can configure encapsulation, MAC address, MTU size,
and logical interfaces.
Unidirectional interfaces support IP and IPv6. Packet forwarding takes place by
means of static routes and static ARP entries. which you can configure independently
on both unidirectional interfaces.
Only transmit statistics are reported on the transmit-only interface (and shown as
zero on the receive-only interface). Only receive statistics are reported on the
receive-only interface (and shown as zero on the transmit-only interface). Both
transmit and receive statistics are reported on the parent interface.

Disabling a Physical Interface

You can disable a physical interface, marking it as being down, without removing
the interface configuration statements from the configuration. To do this, include
the
NOTE: When you use the
depending on the PIC type, the interface might or might not turn off the laser. Older
PIC transceivers do not support turning off the laser, but newer Gigabit Ethernet PICs
with SFP and XFP transceivers do support it and the laser will be turned off when
the interface is disabled.
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Disabling a Physical Interface
[edit interfaces interface-name]
[edit interfaces interface-name]
unidirectional;
4–Port 10–Gigabit Ethernet DPC on the MX960 router
10–Gigabit Ethernet IQ2 PIC and 10–Gigabit Ethernet IQ2E PIC on the T Series
router
disable statement at the
[edit interfaces interface-name]
disable;
disable
hierarchy level:
[edit interfaces interface-name]
statement at the
edit interfaces
unidirectional
hierarchy level:
hierarchy level,