Table 28 Diagnostic Tips for Stack Errors: (continued)
SolutionProblemTip
NOTE:
• Slow green flash LED represent stacking member
ID.
• Fast green flash LED represent commander
member ID of that chassis.
• Other solid green LED represent other stacking
members.
Reset or power cycle the switch to reboot it. After
rebooting, the module will be correctly recognized and
supported by the switch, and will be operational.
The Stacking Module was installed in the switch while
the switch was powered on. Hot install is not
supported.
2
When installing or removing the Stacking Module, the
switch should be powered off.
Make sure that the stacking cable is fully connected at
both ends of the link.
One of these problems exists:3
• The stacking cable connected to the stacking port
on which the Link LED is blinking orange is not
connected at the far end.
If an equipment failure has occurred, see the LEDs on
the device at the other end of the connection.
• A stacking link failure has occurred on a link that
was functioning:
If this error occurred on an operational stack, it could
result in changes to the stack configuration including
election of a new stack Commander, and possibly a
◦ the switch at the other end of the stacking cable
has been powered off
new Standby. See the Stack Management chapter in
the 3810M Advance Traffic Management Guide for
more information.
◦ The stacking feature is disabled on the switch
at the other end of the stacking cable
If necessary to resolve the problem, contact your
Hewlett Packard Enterprise authorized network reseller,
◦ the stacking module or switch at the other end
of the stacking link has failed
or use the electronic support services from Hewlett
Packard Enterprise to get assistance. See “Hewlett
Packard Enterprise Customer Support Services” (page
79).
◦ the stacking cable is faulty
The stacking module on this switch has experienced
a failure.
4 1. Try resetting the switch by pressing the Reset button
on the front of the switch, or by power cycling the
switch.
Stacking Module LED might be blinking orange slowly.
2. If the fault indication reoccurs, the stacking module
may have to be replaced.
This error could result in changes to the stack
configuration including election of a new stack
Commander, and possibly a new Standby. See the
Stack Management chapter in the 3810M Advance
Traffic Management Guide for more information.
If necessary to resolve the problem, contact your
Hewlett Packard Enterprise authorized network reseller,
or use the electronic support services from Hewlett
Packard Enterprise to get assistance. See “Hewlett
Packard Enterprise Customer Support Services” (page
79).
Repair the cause of the stack link failure and reconnect
the switches in their original topology so that the
switches can reform the original stack.
A stack link failure has occurred in a chain topology
and multiple stack fragments have been created. Each
fragment will elect a Commander, so there will be
multiple switches with the Cmd LED on.
5
Repair the cause of the stack link failure so that the
switches can reform the original stack.
A stack link failure has occurred in a chain topology
and multiple stack fragments have been created.
6
One of the fragments has been made inactive
according to the rules of the stack operation. All the
network ports on the switches in the inactive fragment
Diagnosing with the LEDs 75
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