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Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

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Configuring VLAN-Stack over VLT

To configure VLAN-stack over VLT, follow these steps.

  1. Configure the VLT LAG as VLAN-Stack access or Trunk mode on both the peers.
    INTERFACE PORT-CHANNEL mode
    vlan-stack {access | trunk}
  2. Configure VLAN as VLAN-stack compatible on both the peers.
    INTERFACE VLAN mode
    vlan-stack compatible
  3. Add the VLT LAG as a member to the VLAN-stack on both the peers.
    INTERFACE VLAN mode
    member port-channel port—channel ID
  4. Verify the VLAN-stack configurations.
    EXEC Privilege
    show running-config
Sample configuration of VLAN-stack over VLT (Peer 1)

Configure the VLT domain

DellEMC(conf)#vlt domain 1
DellEMC(conf-vlt-domain)#peer-link port-channel 1
DellEMC(conf-vlt-domain)#back-up destination 10.16.151.116
DellEMC(conf-vlt-domain)#primary-priority 100
DellEMC(conf-vlt-domain)#system-mac mac-address 00:00:00:11:11:11
DellEMC(conf-vlt-domain)#unit-id 0
DellEMC(conf-vlt-domain)#

DellEMC#show running-config vlt
!
vlt domain 1 
 peer-link port-channel 1 
 back-up destination 10.16.151.116 
 primary-priority 100 
 system-mac mac-address 00:00:00:11:11:11 
 unit-id 0
DellEMC#

Configure the VLT LAG as VLAN-Stack Access or Trunk Port

DellEMC(conf)#interface port-channel 10
DellEMC(conf-if-po-10)#switchport
DellEMC(conf-if-po-10)#vlt-peer-lag port-channel 10
DellEMC(conf-if-po-10)#vlan-stack access
DellEMC(conf-if-po-10)#no shutdown

DellEMC#show running-config interface port-channel 10
!
interface Port-channel 10
 no ip address
 switchport
 vlan-stack access 
 vlt-peer-lag port-channel 10
 no shutdown
DellEMC#

DellEMC(conf)#interface port-channel 20
DellEMC(conf-if-po-20)#switchport
DellEMC(conf-if-po-20)#vlt-peer-lag port-channel 20
DellEMC(conf-if-po-20)#vlan-stack trunk
DellEMC(conf-if-po-20)#no shutdown

DellEMC#show running-config interface port-channel 20
!
interface Port-channel 20
 no ip address
 switchport
 vlan-stack trunk
 vlt-peer-lag port-channel 20
 no shutdown
DellEMC#

Configure the VLAN as a VLAN-Stack VLAN and add the VLT LAG as Members to the VLAN

DellEMC(conf)#interface vlan 50
DellEMC(conf-if-vl-50)#vlan-stack compatible 
DellEMC(conf-if-vl-50-stack)#member port-channel 10
DellEMC(conf-if-vl-50-stack)#member port-channel 20

DellEMC#show running-config interface vlan 50
!
interface Vlan 50
 vlan-stack compatible
 member Port-channel 10,20
 shutdown
DellEMC#

Verify that the Port Channels used in the VLT Domain are Assigned to the VLAN-Stack VLAN

DellEMC#show vlan id 50

Codes: * - Default VLAN, G - GVRP VLANs, R - Remote Port Mirroring VLANs, P - Primary, C - Community, I - Isolated
       O - Openflow
Q: U - Untagged, T - Tagged
   x - Dot1x untagged, X - Dot1x tagged
   o - OpenFlow untagged, O - OpenFlow tagged
   G - GVRP tagged, M - Vlan-stack
   i - Internal untagged, I - Internal tagged, v - VLT untagged, V - VLT tagged

    NUM    Status    Description                     Q Ports
    50     Active                                    M Po10(Te 1/8)
                                                     M Po20(Te 1/12)
                                                     V Po1(Te 1/30-32)
DellEMC#

Sample Configuration of VLAN-Stack Over VLT (Peer 2)

Configure the VLT domain

DellEMC(conf)#vlt domain 1
DellEMC(conf-vlt-domain)#peer-link port-channel 1
DellEMC(conf-vlt-domain)#back-up destination 10.16.151.115
DellEMC(conf-vlt-domain)#system-mac mac-address 00:00:00:11:11:11
DellEMC(conf-vlt-domain)#unit-id 1
DellEMC(conf-vlt-domain)#

DellEMC#show running-config vlt
vlt domain 1 
 peer-link port-channel 1 
 back-up destination 10.16.151.115 
 system-mac mac-address 00:00:00:11:11:11 
 unit-id 1
DellEMC#

Configure the VLT LAG as VLAN-Stack Access or Trunk Port

DellEMC(conf)#interface port-channel 10
DellEMC(conf-if-po-10)#switchport
DellEMC(conf-if-po-10)#vlt-peer-lag port-channel 10
DellEMC(conf-if-po-10)#vlan-stack access 
DellEMC(conf-if-po-10)#no shutdown

DellEMC#show running-config interface port-channel 10
!
interface Port-channel 10
 no ip address
 switchport
 vlan-stack access 
 vlt-peer-lag port-channel 10
 no shutdown
DellEMC#

DellEMC(conf)#interface port-channel 20
DellEMC(conf-if-po-20)#switchport
DellEMC(conf-if-po-20)#vlt-peer-lag port-channel 20
DellEMC(conf-if-po-20)#vlan-stack trunk 
DellEMC(conf-if-po-20)#no shutdown

DellEMC#show running-config interface port-channel 20
!
interface Port-channel 20
 no ip address
 switchport
 vlan-stack trunk
 vlt-peer-lag port-channel 20
 no shutdown
DellEMC#

Configure the VLAN as a VLAN-Stack VLAN and add the VLT LAG as members to the VLAN

DellEMC(conf)#interface vlan 50
DellEMC(conf-if-vl-50)#vlan-stack compatible 
DellEMC(conf-if-vl-50-stack)#member port-channel 10
DellEMC(conf-if-vl-50-stack)#member port-channel 20
DellEMC(conf-if-vl-50-stack)#

DellEMC#show running-config interface vlan 50
!
interface Vlan 50
 vlan-stack compatible
 member Port-channel 10,20
 shutdown
DellEMC#

Verify that the Port Channels used in the VLT Domain are Assigned to the VLAN-Stack VLAN

DellEMC#show vlan id 50

Codes: * - Default VLAN, G - GVRP VLANs, R - Remote Port Mirroring VLANs, P - Primary, C - Community, I - Isolated
       O - Openflow
Q: U - Untagged, T - Tagged
   x - Dot1x untagged, X - Dot1x tagged
   o - OpenFlow untagged, O - OpenFlow tagged
   G - GVRP tagged, M - Vlan-stack
   i - Internal untagged, I - Internal tagged, v - VLT untagged, V - VLT tagged

    NUM    Status    Description                     Q Ports
    50     Active                                    M Po10(Te 1/8)
                                                     M Po20(Te 1/20)
                                                     V Po1(Te 1/30-32)
DellEMC#

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