
Table 3: show interfaces Fast Ethernet Output Fields (continued)
Level of OutputField DescriptionField Name
detail extensive noneEthernet-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 routing device configuration, an alarm can ring the red or yellow
alarm bell on the routing device, or turn on the red or yellow alarm LED on the
craft interface. 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
The forward error correction (FEC) counters provide the following statistics:.
• Corrected Errors—The count of corrected errors in the last second.
• Corrected Error Ratio—The corrected error ratio in the last 25 seconds. For
example, 1e-7 is 1 error per 10 million bits.
OTN FEC statistics
detail extensive(10-Gigabit Ethernet interfaces) Displays Physical Coding Sublayer (PCS) fault
conditions from the WAN PHY or the LAN PHY device.
• Bit errors—High bit error rate. Indicates the number of bit errors when the PCS
receiver is operating in normal mode.
• Errored blocks—Loss of block lock. The number of errored blocks when PCS
receiver is operating in normal mode.
PCS statistics
39Copyright © 2013, Juniper Networks, Inc.
Chapter 5: Monitoring Commands
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