Reference Guide

Configure the port channel to an attached device.
FTOS_VLTpeer2(conf)#interface port-channel 110
FTOS_VLTpeer2(conf-if-po-110)#no ip address
FTOS_VLTpeer2(conf-if-po-110)#switchport
FTOS_VLTpeer2(conf-if-po-110)#channel-member fortyGigE 0/48
FTOS_VLTpeer2(conf-if-po-110)#no shutdown
FTOS_VLTpeer2(conf-if-po-110)#vlt-peer-lag port-channel 110
FTOS_VLTpeer2(conf-if-po-110)#end
Verify that the port channels used in the VLT domain are assigned to the same VLAN.
FTOS_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 0/48)
T Po100(Fo 0/46,50)
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.
FTOS_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 75. 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.
873