Dell Configuration Guide for the S4048–ON System 9.14.2.4

Configuring Virtual Link Trunking (VLT Peer 1)

Enable VLT and create a VLT domain with a backup-link and interconnect trunk (VLTi).

Dell_VLTpeer1(conf)#vlt domain 999
Dell_VLTpeer1(conf-vlt-domain)#peer-link port-channel 100
Dell_VLTpeer1(conf-vlt-domain)#back-up destination 10.11.206.35
Dell_VLTpeer1(conf-vlt-domain)#exit

Configure the backup link.

Dell_VLTpeer1(conf)#interface ManagementEthernet 1/1
Dell_VLTpeer1(conf-if-ma-1/1)#ip address 10.11.206.23/
Dell_VLTpeer1(conf-if-ma-1/1)#no shutdown
Dell_VLTpeer1(conf-if-ma-1/1)#exit

Configure the VLT interconnect (VLTi).

Dell_VLTpeer1(conf)#interface port-channel 100
Dell_VLTpeer1(conf-if-po-100)#no ip address
Dell_VLTpeer1(conf-if-po-100)#channel-member fortyGigE 1/49,50
Dell_VLTpeer1(conf-if-po-100)#no shutdown
Dell_VLTpeer1(conf-if-po-100)#exit

Configure the port channel to an attached device.

Dell_VLTpeer1(conf)#interface port-channel 110
Dell_VLTpeer1(conf-if-po-110)#no ip address
Dell_VLTpeer1(conf-if-po-110)#switchport
Dell_VLTpeer1(conf-if-po-110)#channel-member fortyGigE 1/51
Dell_VLTpeer1(conf-if-po-110)#no shutdown
Dell_VLTpeer1(conf-if-po-110)#vlt-peer-lag port-channel 110
Dell_VLTpeer1(conf-if-po-110)#end

Verify that the port channels used in the VLT domain are assigned to the same VLAN.

Dell_VLTpeer1# 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 1/51)
                          T Po100(Fo 1/49,50)

Configuring Virtual Link Trunking (VLT Peer 2)

Enable VLT and create a VLT domain with a backup-link VLT interconnect (VLTi).

Dell_VLTpeer2(conf)#vlt domain 999
Dell_VLTpeer2(conf-vlt-domain)#peer-link port-channel 100
Dell_VLTpeer2(conf-vlt-domain)#back-up destination 10.11.206.23
Dell_VLTpeer2(conf-vlt-domain)#exit

Configure the backup link.

Dell_VLTpeer2(conf)#interface ManagementEthernet 1/1
Dell_VLTpeer2(conf-if-ma-1/1)#ip address 10.11.206.35/
Dell_VLTpeer2(conf-if-ma-1/1)#no shutdown
Dell_VLTpeer2(conf-if-ma-1/1)#exit

Configure the VLT interconnect (VLTi).

Dell_VLTpeer2(conf)#interface port-channel 100
Dell_VLTpeer2(conf-if-po-100)#no ip address
Dell_VLTpeer2(conf-if-po-100)#channel-member fortyGigE 1/51,52
Dell_VLTpeer2(conf-if-po-100)#no shutdown
Dell_VLTpeer2(conf-if-po-100)#exit

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 1/53
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 1/53)
                          T Po100(Fo 1/51,52)

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 1/49,50
no shutdown