Users Guide

Configure the port channel to an attached device.
Dell_VLTpeer2(conf)#interface port-channel 110
Dell_VLTpeer2(conf-if-po-110)#no ip address
Dell_VLTpeer2(conf-if-po-110)#switchport
Dell_VLTpeer2(conf-if-po-110)#channel-member fortyGigE 1/12
Dell_VLTpeer2(conf-if-po-110)#no shutdown
Dell_VLTpeer2(conf-if-po-110)#vlt-peer-lag port-channel 110
Dell_VLTpeer2(conf-if-po-110)#end
Verify that the port channels used in the VLT domain are assigned to the same VLAN.
Dell_VLTpeer2# show vlan id 10
Codes: * - Default VLAN, G - GVRP VLANs, P - Primary, C - Community, I - Isolated
Q: U - Untagged, T - Tagged
x - Dot1x untagged, X - Dot1x tagged
G - GVRP tagged, M - Vlan-stack, H - Hyperpull tagged
NUM Status Description Q Ports
10 Active U Po110(Fo 1/12)
T Po100(Fo 1/9,10)
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 1/5,6
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 90. Troubleshooting VLT
Description Behavior at Peer Up Behavior During Run Time Action to Take
Bandwidth monitoring 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%.
A syslog error message and
an SNMP trap is generated
when the VLTi bandwidth
usage goes above its
threshold.
Depending on the traffic that
is received, the traffic can be
offloaded inVLTi.
Domain ID mismatch
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.
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.
Verify the domain ID matches
on both VLT peers.
Dell Networking OS Version
mismatch
A syslog error message is
generated.
A syslog error message is
generated.
Follow the correct upgrade
procedure for the unit with
the mismatched Dell
Networking OS version.
Remote VLT port channel
status
N/A N/A Use the show vlt detail
and show vlt brief
Virtual Link Trunking (VLT) 892