Cisco Catalyst 9404R Switch Hardware Installation Manual page 142

Cisco Catalyst 9400 Series Supervisor Module LEDs
LED
MANAGEMENT
SFP or SFP+ UPLINK STATUS
Triangular LEDs pointing up or down,
indicating the status of the corresponding
port.
QSFP UPLINK STATUS
LEDs next to each QSFP port number,
indicating the status of the corresponding
port.
Cisco Catalyst 9400 Series Switches Hardware Installation Guide
136
LED Position or Meaning
Color
Green The 10/100/1000 BASE-T Ethernet
management port is operational (link up).
Off No signal is detected for the 10/100/1000
BASE-T Ethernet management port, or there
is a link configuration failure, or the link is
disabled by user (link down).
Green SFP or SFP+ port link is up but there is no
packet activity.
Blinking Green SFP or SFP+ port link is up and indicating
packet activity.
Amber SFP or SFP+ link is disabled by the user,
that is, administratively down.
Blinking Amber Hardware (PHY) has detected a faulty port
link.
Alternating Green Error packets are being detected on the port
and Amber link. The error packets could be bad Cyclic
Redundancy Check (CRC) packets, jumbo
packets, etc.
Off SFP or SFP+ port link is down.
Green QSFP port link is up but there is no packet
activity.
Blinking Green QSFP port link is up and indicating packet
activity.
Amber QSFP port link is disabled by the user, that
is, administratively down.
Alternating Green Error packets are being detected on the
and Amber QSFP port link. The error packets could be
bad Cyclic Redundancy Check (CRC)
packets, jumbo packets, etc.
Off QSFP port link is down.
LEDs