Table 180: show interfaces ge- Output Fields
(continued)
Level of Output
Field Description
Field Name
extensive
Output errors on the interface. The following paragraphs explain the counters
whose meaning might not be obvious:
•
Carrier transitions
—Number of times the interface has gone from
down
to
up
. This number does not normally increment quickly, increasing only when
the cable is unplugged, the far-end system is powered down and then up, or
another problem occurs. If the number of carrier transitions increments quickly
(perhaps once every 10 seconds), the cable, the far-end system, or the PIC
or PIM is malfunctioning.
•
Errors
—Sum of the outgoing frame aborts and FCS errors.
•
Drops
—Number of packets dropped by the output queue of the I/O Manager
ASIC. If the interface is saturated, this number increments once for every
packet that is dropped by the ASIC's RED mechanism.
•
Collisions
—Number of Ethernet collisions. The Gigabit Ethernet PIC supports
only full-duplex operation, so for Gigabit Ethernet PICs, this number should
always remain 0. If it is nonzero, there is a software bug.
•
Aged packets
—Number of packets that remained in shared packet SDRAM
so long that the system automatically purged them. The value in this field
should never increment. If it does, it is most likely a software bug or possibly
malfunctioning hardware.
•
FIFO errors
—Number of FIFO errors in the send direction as reported by the
ASIC on the PIC. If this value is ever nonzero, the PIC is probably
malfunctioning.
•
HS link CRC errors
—Number of errors on the high-speed links between the
ASICs responsible for handling the switch interfaces.
•
MTU errors
—Number of packets whose size exceeded the MTU of the
interface.
•
Resource errors
—Sum of transmit drops.
Output errors
detail extensive
Total number of egress queues supported on the specified interface.
Egress queues
detail extensive
CoS queue number and its associated user-configured forwarding class name.
•
Queued packets
—Number of queued packets.
•
Transmitted packets
—Number of transmitted packets.
•
Dropped packets
—Number of packets dropped by the ASIC's RED mechanism.
Queue counters
(Egress )
detail extensive
none
Ethernet-specific defects that can prevent the interface from passing packets.
When a defect persists for a certain amount of time, it is promoted to an alarm.
Based on the switch configuration, an alarm can ring the red or yellow alarm
bell on the switch or turn on the red or yellow alarm LED on the front of the
switch. These fields can contain the value
None
or
Link
.
•
None
—There are no active defects or alarms.
•
Link
—Interface has lost its link state, which usually means that the cable is
unplugged, the far-end system has been turned off, or the PIC is
malfunctioning.
Active alarms and
Active defects
Copyright © 2010, Juniper Networks, Inc.
1248
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3
Summary of Contents for JUNOS OS 10.3 - SOFTWARE
Page 325: ...CHAPTER 17 Operational Mode Commands for System Setup 229 Copyright 2010 Juniper Networks Inc ...
Page 1323: ...CHAPTER 56 Operational Mode Commands for Interfaces 1227 Copyright 2010 Juniper Networks Inc ...
Page 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
Page 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
Page 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
Page 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...