Chapter 1: Summit Family Switches
Summit Family Switches Hardware Installation Guide
78
Stack 1, Stack 2
(Note: the
X440-L2-24t and
X440-L2-48t do not
have stacking
capability; the
stacking LEDs do
not function)
Steady green Link OK on the indicated stacking port.
Blinking green Activity on the indicated stacking port.
Stack Number
Indicator
(Note: the
X440-L2-24t and
X440-L2-48t do not
have stacking
capability; the
stacking LEDs do
not function)
Top half of the stack
number blinking
The switch is designated as master in the stack.
Bottom half of the
stack number
blinking
The switch is designated as backup in the stack.
Stack number steady
This switch is a standby switch (neither the master nor the backup)
in the stack.
Off The stackable switch is not in stacking mode.
Additional Port LED Meanings for PoE Switches: Summit X440-8p, X440-24p, X440-24p-10G, X440-48p, and
X440-48p-10G
All front-panel ports Steady green Link OK; port is not powered.
Steady amber Link is OK; port is powered; no traffic.
Blinking green Link is OK and transmitting packets; port is not powered.
Blinking amber Link is OK and transmitting packets; port is powered.
Slow blinking amber No link, or disabled port; port is powered.
Alternating amber
and green
Port has a power fault.
Off Port is not powered, has no link, or is disabled.
Table 16: LEDs on the Summit X440 Series Switches (Continued)
Label or Type Color/State Meaning
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