Common Interface Commands

Table 11 summarizes common clear interfaces and show interfaces commands used to monitor and troubleshoot most interface types. Commands are listed in alphabetical order.

NOTE: For information about the monitor interface and monitor traffic commands, see the JUNOS System Basics and Services Command Reference.

Table 11: Common Interface Commands 

Task	Command
Clear the channel service unit (CSU) alarm and defect counters.	clear interfaces interval
Set interface statistics to zero.	clear interfaces statistics
Display brief information about all configured interfaces.	show interfaces brief
Display interface descriptions.	show interfaces descriptions
Display interfaces grouped by destination class.	show interfaces destination-class
Display detailed information about all configured interfaces.	show interfaces detail
Display extensive information about all configured interfaces.	show interfaces extensive
Display all firewall filters that are installed on each interface.	show interfaces filters
Display CSU interface alarm and error counts for the past 24 hours.	show interfaces interval
Display media-specific information about all configured network interfaces.	show interfaces media
Display all firewall policers that are installed on each interface.	show interfaces policers
Display class-of-service (CoS) information per physical interface.	show interfaces queue
Display the routing protocol process view of the router's interfaces status.	show interfaces routing show interfaces routing summary
Display information about the SNMP index of an interface.	show interfaces snmp-index
Display information about interfaces grouped by source class.	show interfaces source-class
Display static interface statistics, such as errors.	show interfaces statistics
Display summary information about interfaces.	show interfaces terse

NOTE: The show interfaces controller command applies only to channelized intelligent queuing (IQ) interfaces. For more information, see the following chapters: Channelized E1 Interface Operational Mode Commands, Channelized OC Interface Operational Commands, Channelized STM1 Interface Operational Mode Commands, and Channelized T1 and T3 Interface Operational Mode Commands.