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A
Trouble Clearing
NMC LEDs
T
ROUBLE
T
ECHNICAL
This appendix contains 486 Network Managemement Card (NMC)
Network Application Card (NAC) trouble clearing information and
technical specifications.
This section contains information to help you trouble clear problems that
may occur after you first install and power-up a 486 NMC NAC.
Use the NMC LEDs to diagnose power-up, boot, and connectivity errors.
This table lists the NMC NAC LEDs and their possible conditions.
Description
Status
Run/Fail (RN/FL) Solid green
Solid red
Flashing
red/green
Flashing
green
Hub Status
Solid green
Solid red
Flashing red Management bus failure with card in chassis
LAN TX
Green
OFF
LAN RX
Green
OFF
WAN TX
Green
OFF
WAN RX
Green
OFF
C
LEARING AND
S
PECIFICATIONS
Meaning
Normal/diagnostics mode/boot-up self-test
Critical Failure
Non-critical failure on initial power-up
Testing or software download (required or in pro-
cess)/also during boot-up sequence
Chassis normal/diagnostics mode
Chassis critical failure
NMC transmitting data on LAN port
No data being transmitted on LAN port
NMC receiving data on LAN port
No data being received on LAN port
NMC transmitting data on WAN port
No data being transmitted on WAN port
NMC receiving data on WAN port
No data being received on WAN port