Reference Guide

Virtual Link Trunking (VLT) | 869
Unit ID mismatch The VLT peer does not boot
up. The VLTi is forced to a
down state.
The VLT domain will not be
formed. The VLTi will be in 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; i.e., 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 FTOS software
versions on the VLT peers is
compatible. For more
information, see 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.
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.
VLT LAG VLAN mismatch A syslog error message is
generated.
A syslog error message is
generated.
Verify that the VLAN
configuration is same for the
VLT lags on both peers.
Description Behavior at Peer Up
Behavior During Run
Time Action to Take