Dell S3048-ON, Configuration Manual

Page: 344 / 1036

• For a 1-GigabitEthernet interface, enter the keyword
GigabitEthernet
then the slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet
then the slot/port information.
Example of the
monitor interface
Command
The information displays in a continuous run, refreshing every 2 seconds by default. To manage the output, use the following keys.
•
m
— Change mode
•
l
— Page up
•
T
— Increase refresh interval (by 1 second)
•
t
— Decrease refresh interval (by 1 second)
•
c
— Clear screen
•
a
— Page down
•
q
— Quit
Dell#monitor interface Gi 3/1
Dell uptime is 1 day(s), 4 hour(s), 31 minute(s)
Monitor time: 00:00:00 Refresh Intvl.: 2s
Interface: Gi 3/1, Disabled, Link is Down, Linespeed is 1000 Mbit
Traffic statistics: Current Rate Delta
Input bytes: 0 0 Bps 0
Output bytes: 0 0 Bps 0
Input packets: 0 0 pps 0
Output packets: 0 0 pps 0
64B packets: 0 0 pps 0
Over 64B packets: 0 0 pps 0
Over 127B packets: 0 0 pps 0
Over 255B packets: 0 0 pps 0
Over 511B packets: 0 0 pps 0
Over 1023B packets: 0 0 pps 0
Error statistics:
Input underruns: 0 0 pps 0
Input giants: 0 0 pps 0
Input throttles: 0 0 pps 0
Input CRC: 0 0 pps 0
Input IP checksum: 0 0 pps 0
Input overrun: 0 0 pps 0
Output underruns: 0 0 pps 0
Output throttles: 0 0 pps 0
m - Change mode c - Clear screen
l - Page up a - Page down
T - Increase refresh interval t - Decrease refresh interval
q - Quit
q
Dell#
Maintenance Using TDR
The time domain reflectometer (TDR) is supported on all Dell Networking switch/routers.
TDR is an assistance tool to resolve link issues that helps detect obvious open or short conditions within any of the four copper pairs. TDR
sends a signal onto the physical cable and examines the reflection of the signal that returns. By examining the reflection, TDR is able to
indicate whether there is a cable fault (when the cable is broken, becomes unterminated, or if a transceiver is unplugged).
TDR is useful for troubleshooting an interface that is not establishing a link; that is, when the link is flapping or not coming up. TDR is not
intended to be used on an interface that is passing traffic. When a TDR test is run on a physical cable, it is important to shut down the port
on the far end of the cable. Otherwise, it may lead to incorrect test results.
344 Interfaces