Table 27: X770 Front Panel LEDs
Label or Type
Color/State
Meaning
M (Management)
Slow blinking green (1 Hz)
Normal operation
Fast blinking green (2 Hz)
Power-on self test (POST) in progress
or
Switch diagnostics are running
Steady green
POST passed: system is booting image
Blinking amber
System is disabled: POST failed or system
overheated
Off
No external power is attached
FAN
1, 2, 3, 4, 5
Steady green
Normal operation.
Blinking amber
Failure.
Off
No power.
P1, P2
(Power Supply)
Steady green
Normal operation.
Steady amber
Power is attached, but no power is on.
Blinking amber
Power failure.
Off
No power is attached.
Ethernet Ports 40G mode 1,
5, 9, 13, 17, 21, 25, 29, 33, 37,
41, 45, 49, 50 51, 52, 53, 57,
61, 65, 69, 73, 77, 81, 85, 89,
93, 97, 101, 102, 103, 104
Steady blue
Link OK.
Blinking blue
Activity on the indicated port.
Off
No link or port disabled.
Ethernet Ports 10G mode
1-104
Steady green
Link OK
Blinking green
Activity on the indicated port
Off
No 10G link or port disabled.
Table 28: 2-digit Stack Number Indicator
Label or Type
Color/State
Meaning
Left digit (1)
Reserved for future use.
Right digit (1 – 8)
Indicates the position of this switch in the SummitStack configuration.
Upper half blinking
This switch is the stack master node.
Lower half blinking
This switch is the stack backup node.
Lit steadily
This switch is a standby node in the stack.
Stacking Ports 40G mode
(V160 and V320 stacking)
ports 101, 102, 103, and 104
Steady blue
Link OK
Blinking blue
Activity
Off
No link or port disabled.
ExtremeSwitching Switches
ExtremeSwitching and Summit Switches: Hardware Installation Guide
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