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Table 104. Troubleshooting VLT (continued)
Description Behavior at Peer Up Behavior During Run Time Action to Take
Unit ID mismatch
The VLT peer does not boot
up. The VLTi is forced to a
down state.
A syslog error message is
generated.
The VLT peer does not boot
up. The VLTi is forced to a
down state.
A syslog error message is
generated.
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.
Version ID mismatch A syslog error message and an
SNMP trap are generated.
A syslog error message and an
SNMP trap are generated.
Verify the Dell Networking
OS software versions on the
VLT peers is compatible. For
more information, refer to
the Release Notes for this
release.
VLT LAG ID is not configured
on one VLT peer
A syslog error message is
generated. The peer with
the VLT configured remains
active.
A syslog error message is
generated. The peer with
the VLT configured remains
active.
Verify the VLT LAG ID is
configured correctly on both
VLT peers.
VLT LAG ID mismatch
The VLT port channel is
brought down.
A syslog error message is
generated.
The VLT port channel is
brought down.
A syslog error message is
generated.
Perform a mismatch check
after the VLT peer is
established.
822 PMUX Mode of the IO Aggregator