Cable Diagnostics - Edge-Core ECS3510-26P Management Manual

Cable Diagnostics

test
cable-diagnostics
Length :
Link length supported for OM2 fiber, 550m
Link length supported for OM1 fiber, 280m
Vendor Name: SMC Networks
Vendor OUI : 0
Vendor PN : SMC1GSFP-SX
Vendor Rev : V1.1
Vendor SN : V1.1
Date code : 2009.5.19
Options :
Console#
This command performs cable diagnostics on the specified port to diagnose
any cable faults (short, open, etc.) and report the cable length.
S
YNTAX
test cable-diagnostics interface interface
interface
ethernet unit/port
unit - Unit identifier. (Range: 1)
port - Port number. (Range: 25-26)
C M
OMMAND ODE
Privileged Exec
C U
OMMAND SAGE
◆ Cable diagnostics are performed using Digital Signal Processing (DSP)
test methods. DSP analyses the cable by sending a pulsed signal into
the cable, and then examining the reflection of that pulse.
This cable test is only accurate for Gigabit Ethernet cables 0 - 250
◆
meters long.
The test takes approximately 5 seconds. The switch displays the results
◆
of the test immediately upon completion, including common cable
failures, as well as the status and approximate length of each cable
pair.
Potential conditions which may be listed by the diagnostics include:
◆
OK: Correctly terminated pair
■
Open: Open pair, no link partner
■
Short: Shorted pair
■
Not Supported: This message is displayed for Gigabit Ethernet ports
■
linked up at a speed lower than 1000 Mbps.
Impedance mismatch: Terminating impedance is not in the
■
reference range.
– 745 –
| Interface Commands
C 26
HAPTER
Cable Diagnostics