Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010 Configuration Manual page 163

The brief keyword displays only the operational status of all configured
subinterfaces.
Field descriptions
sub-interface Identifies the subinterface in
slot/port:channel/subchannel.subinterface format
status Status of the subinterface
Description Text description or alias if configured for the subinterface
Time since last status change Time since the last status change on the
subinterface
In bytes Number of inbound bytes received on the subinterface
Out bytes—Number of outbound bytes transmitted on the subinterface
In frames Number of inbound frames received on the interface
Out frames Number of outbound frames transmitted on the interface
In errors Number of inbound errors received on the subinterface
Out errors—Number of outbound errors transmitted on the subinterface
In discards Number of inbound packets discarded
Out discards—Number of outbound packets discarded
In unknown protos—Number of packets received on the subinterface with
unknown protocols
Example
host1#show frame-relay subinterface
Frame relay sub-interface 3/2:1/1.1, status is up
Description: toronto011
Time since last status change 01:21:26
In bytes: 0
In frames: 0
In errors: 0
In discards: 0
In unknown protos: 0
Frame relay sub-interface 3/2:1/1.2, status is up
Description: ottawa012
Time since last status change 01:21:26
In bytes: 0
In frames: 0
In errors: 0
In discards: 0
In unknown protos: 0
Frame relay sub-interface 3/2:1/1.3, status is up
Description: montreal013
Time since last status change 01:21:26
In bytes: 0
In frames: 0
In errors: 0
Chapter 2: Configuring Frame Relay
Out bytes: 0
Out frames: 0
Out errors: 0
Out discards: 0
Out bytes: 0
Out frames: 0
Out errors: 0
Out discards: 0
Out bytes: 0
Out frames: 0
Out errors: 0
Monitoring Frame Relay
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