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Debabrata Majhi
Beginner

ASR OTV with access port

Hi All

I want to Extend only one vlan to other Data center for some migration purpose.The following configuration is example for trunk port to carry multiple vlan.But my need only one vlan.

Can we configure the L2 connectivity with OTV router and L2 switch access port instead of trunk port?

If I configure the switch access port what will be configuration in OTV overlay interface,As we can see it is  

encapsulation dot1q 100(Vlan)

Is it possible to configure OTV with access port? 

 

service instance 50 ethernet
  encapsulation dot1q 100
  bridge-domain 200

 

ASR-1
interface GigabitEthernet0/0/2
 no ip address
 negotiation auto
 cdp enable
 service instance 1 ethernet
  encapsulation untagged
  bridge-domain 1
 !
 service instance 50 ethernet
  encapsulation dot1q 100
  bridge-domain 200
 !
 service instance 51 ethernet
  encapsulation dot1q 101
  bridge-domain 201


ASR-1

Config t
interface Overlay1
 no ip address
 otv join-interface GigabitEthernet0/0/0
 otv use-adjacency-server X.X.X.X unicast-only
 otv adjacency-server unicast-only
service instance 10 ethernet
  encapsulation dot1q 100
  bridge-domain 200
  service instance 11 ethernet
  encapsulation dot1q 101
  bridge-domain 201


 

 

1 REPLY 1

Hi @Debabrata Majhi,

You should configure the L2 connectivity between the OTV Router and L2 switch as Trunk port.

Untagged Ethernet frames are not forwarded by the OTV Router.

"OTV encapsulation only supports a single VLAN identifier"

Deploying Overlay Transport Virtualization.

Hope this helps.

Regards.

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