Troubleshooting Vlt - Dell C9000 Series Networking Configuration Manual

Verifying a Port-Channel Connection to a VLT
Domain (From an Attached Access Switch)
On an access device, verify the port-channel connection to a VLT domain.
Dell_TORswitch(conf)# show running-config interface port-channel 11
!
interface Port-channel 11
no ip address
switchport
channel-member fortyGigE 1/18,22
no shutdown

Troubleshooting VLT

To help troubleshoot different VLT issues that may occur, use the following information.
NOTE: For information on VLT Failure mode timing and its impact, contact your Dell Networking
representative.
Table 94. Troubleshooting VLT
Description
Bandwidth monitoring
Domain ID mismatch
Dell Networking OS
Version mismatch
Remote VLT port channel
status
Behavior at Peer Up
A syslog error message
and an SNMP trap is
generated when the VLTi
bandwidth usage goes
above the 80% threshold
and when it drops below
80%.
The VLT peer does not
boot up. The VLTi is
forced to a down state.
A syslog error message
and an SNMP trap are
generated.
A syslog error message is
generated.
N/A
Behavior During Run
Time
A syslog error message
and an SNMP trap is
generated when the VLTi
bandwidth usage goes
above its threshold.
The VLT peer does not
boot up. The VLTi is
forced to a down state.
A syslog error message
and an SNMP trap are
generated.
A syslog error message is
generated.
N/A
Virtual Link Trunking (VLT)
Action to Take
Depending on the traffic
that is received, the traffic
can be offloaded inVLTi.
Verify the domain ID
matches on both VLT
peers.
Follow the correct
upgrade procedure for
the unit with the
mismatched Dell
Networking OS version.
Use the show vlt
detail and show vlt
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