Disabling A Physical Interface; Example: Disabling A Physical Interface - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

Disabling a Physical Interface

Example: Disabling a Physical Interface

Copyright © 2010, Juniper Networks, Inc.
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
statement at the
[edit interfaces interface-name]
[edit interfaces interface-name]
disable;
CAUTION: Dynamic subscribers and logical interfaces use physical interfaces
for connection to the network. The Junos OS allows you to set the interface
to disable and commit the change while dynamic subscribers and logical
interfaces are still active. This action results in the loss of all subscriber
connections on the interface. Use care when disabling interfaces.
NOTE: On the router, when you use the
hierarchy level, 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.
WARNING: Do not stare into the laser beam or view it directly with optical
instruments even if the interface has been disabled.
Disable a physical interface:
[edit interfaces]
so-1/1/0 {
mtu 8000;
clocking internal;
encapsulation ppp;
sonet-options {
fcs 16;
}
unit 0 {
family inet {
address 172.16.0.0/12 {
destination 172.16.0.4;
}
}
}
}
[edit interfaces]
user@host# set so-1/1/0 disable
[edit interfaces]
Chapter 58: Configuring Interfaces
hierarchy level:
disable statement at the edit interfaces
disable
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