Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - BROADBAND ACCESS CONFIGURATION GUIDE 2010-10-12 Configuration Manual page 659

interface gigabitEthernet
interface tenGigabitEthernet
interface loopback
Copyright © 2010, Juniper Networks, Inc.
Use the no version to remove IP from an interface or subinterface. You must issue the
no version from the highest level down; you cannot remove an interface or a subinterface
if the one above it still exists.
See interface fastEthernet
Use to select a Gigabit Ethernet interface.
NOTE: You can configure only the primary port, 0, on the Gigabit Ethernet
module. The router automatically uses the redundant port if the primary
port fails.
Example
host1(config)#interface gigabitEthernet 1/0
Use the no version to remove IP from an interface. You must issue the no version from
the highest level down; you cannot remove an interface or a subinterface if the one
above it still exists.
See interface gigabitEthernet
Use to select a 10-Gigabit Ethernet interface on the E120 router or the E320 router.
Use the slot/adapter/port format.
Example
host1(config)#interface tenGigabitEthernet 4/0/1
Use the no version to remove IP from an interface. You must issue the no version from
the highest level down; you cannot remove an interface or subinterface if the one above
it still exists.
See interface tenGigabitEthernet
Use to access and configure a loopback interface.
You can use a loopback interface to provide a stable IP address that can minimize the
impact if a physical interface goes down.
You cannot shut down a loopback interface.
BEST PRACTICE: We recommend that you configure a 32-bit subnet mask
for the loopback interface. For example, if you configure a loopback
interface with the IP address and mask as 1.1.1.1/16, the 1.1.0.0/16 route entry
is entered on the line module and all traffic destined to the to 1.1.0.0/16
subnet is forwarded to the SRP module by the line module. Although the
Chapter 25: Configuring Subscriber Interfaces
621