Juniper JUNOSE 10.0.X PHYSICAL LAYER Configuration Manual page 198

JUNOSe 10.0.x Physical Layer Configuration Guide
172
Monitoring Interfaces
ifOperStatus Physical state of the interface
ifOperDown Interface is not functioning
ifOperLowerLayerDown Lower layer in the interface stack is not
functioning
ifOperNotPresent Module has been removed from the chassis
ifOperTesting Interface is being tested
ifOperUp Interface is functioning
snmp trap link-status Enabled or disabled
Encapsulation Layer 2 encapsulation display; options: ppp, frame-relay
ietf, mlppp, mlframe-relay ietf, hdlc
Crc type checking Size of the CRC
Hdlc mru Current size of the MRU
Hdlc mtu Current size of the MTU
Hdlc interface speed Current line speed of the interface
Hdlc idle-character Current idle character
Invert data disabled Status of the data inversion feature
Ds0 mode Nx56 or Nx64
5 minute input rate Data rates based on the traffic received in the last five
minutes
5 minute output rate Data rates based on the traffic sent in the last five
minutes
Interface Statistics
Packets received Number of packets received on the interface
Bytes received Number of bytes received on the interface
Errored packets received Number of packets with errors received on
the interface
Packets sent Number of packets sent on the interface
Bytes sent Number of bytes sent on the interface
Errored packets sent Number of packets with errors sent from the
interface
Example
host1#show interfaces serial 2/0:1/1/1/1/1
Serial Interface at 2/0:1/1/1/1/1
Description: toronto20 hdlc channel