Users Guide

no stack-unit id stack-group id
2. Save the stacking conguration on the ports.
EXEC Privilege mode
write memory
3. Reload the switch.
EXEC Privilege mode
reload
After the units are reloaded, the system reboots. The units come up as standalone units after the reboot completes.
Troubleshoot an S-Series Stack
To troubleshoot an S-Series stack, use the following recovery tasks.
• Recover from Stack Link Flaps
• Recover from a Card Problem State on an S-Series Stack
Recover from Stack Link Flaps
S-Series stack link integrity monitoring enables units to monitor their own stack ports and disable any stack port that aps ve times
within 10 seconds.
Dell Networking OS displays console messages for the local and remote members of a apping link, and on the primary (master) and
standby management units as KERN-2-INT messages if the apping port belongs to either of these units.
In the following example, a stack-port on the master aps. The remote member, Member 2, displays a console message, and the
master and standby display KERN-2-INT messages.
To re-enable the downed stack-port, power cycle the oending unit.
Example of Console Messages About Flapping Link
---------------------MANAGMENT UNIT------------------------------
Error: Stack Port 50 has flapped 5 times within 10 seconds.Shutting down this st
ack port now.
Error: Please check the stack cable/module and power-cycle the stack.
10:55:20: %STKUNIT1-M:CP %KERN-2-INT: Error: Stack Port 50 has flapped 5 times w
ithin 10 seconds.Shutting down this stack port now.
10:55:20: %STKUNIT1-M:CP %KERN-2-INT: Error: Please check the stack cable/module
and power-cycle the stack.
---------------------STANDBY UNIT--------------------------------
10:55:18: %STKUNIT1-M:CP %KERN-2-INT: Error: Stack Port 50 has flapped 5 times within 10
seonds.Shutting down this stack port now.
10:55:18: %STKUNIT1-M:CP %KERN-2-INT: Error: Please check the stack cable/module
and power-cycle the stack.
---------------------MEMBER 2-----------------------------------
Error: Stack Port 51 has flapped 5 times within 10 seconds.Shutting down this stack port
now.
Error: Please check the stack cable/module and power-cycle the stack.
Recover from a Card Problem State on an S-Series Stack
If a unit added to a stack has a dierent Dell Networking OS version, the unit does not come online and Dell Networking OS cites a
card problem error.
To recover, disconnect the new unit from the stack, change the Dell Networking OS version to match the stack, and then reconnect
it to the stack.
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Stacking