Reconfiguring Stacked Switches As Vlt - Dell S4820T Configuration Manual

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Description
System MAC mismatch
Unit ID mismatch
Version ID mismatch
VLT LAG ID is not
configured on one VLT
peer
VLT LAG ID mismatch

Reconfiguring Stacked Switches as VLT

To convert switches that have been stacked to VLT peers, use the following procedure.
1.
Remove the current configuration from the switches. You will need to split the configuration up for
each switch.
2.
Copy the files to the flash memory of the appropriate switch.
3.
Copy the files on the flash drive to the startup-config.
4.
Reset the stacking ports to user ports for both switches.
5.
Reload the stack and confirm the new configurations have been applied.
6.
On the Secondary switch (stack-unit1), enter the command stack-unit1 renumber 0.
7.
Confirm the reload query.
8.
After reloading, confirm that VLT is enabled.
9.
Confirm that the management ports are interconnected or connected to a switch that can transfer
Heartbeat information.
Virtual Link Trunking (VLT)
Behavior at Peer Up
A syslog error message
and an SNMP trap are
generated.
The VLT peer does not
boot up. The VLTi is
forced to a down state.
A syslog error message
is generated.
A syslog error message
and an SNMP trap are
generated.
A syslog error message
is generated. The peer
with the VLT configured
remains active.
The VLT port channel is
brought down.
A syslog error message
is generated.
Behavior During Run
Time
A syslog error message
and an SNMP trap are
generated.
The VLT peer does not
boot up. The VLTi is
forced to a down state.
A syslog error message
is generated.
A syslog error message
and an SNMP trap are
generated.
A syslog error message
is generated. The peer
with the VLT configured
remains active.
The VLT port channel is
brought down.
A syslog error message
is generated.
Action to Take
Verify that the unit ID of
VLT peers is not the
same on both units and
that the MAC address is
the same on both units.
Verify the unit ID is
correct on both VLT
peers. Unit ID numbers
must be sequential on
peer units; for example,
if Peer 1 is unit ID "0",
Peer 2 unit ID must be
"1'.
Verify the Dell
Networking OS software
versions on the VLT
peers is compatible. For
more information, refer
to the Release Notes for
this release.
Verify the VLT LAG ID is
configured correctly on
both VLT peers.
Perform a mismatch
check after the VLT peer
is established.
1025

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