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default enqapsulation on the same Cisco interface (GigabitEthernet0

Muhammad-ly
Level 1
Level 1

Dears, 

Could you please help me

I'm trying to configure two services on the same Cisco interface (GigabitEthernet0/0/6) using the default encapsulation. I'm using a Cisco ASR920 router.

"I'm having trouble configuring two services with default encapsulation on the same Cisco GigabitEthernet0/0/6 interface."

 

Screenshot 2024-10-17 130027.png

 Thanks. All the best

7 Replies 7

balaji.bandi
Hall of Fame
Hall of Fame
"I'm having trouble configuring two services with default encapsulation on the same Cisco GigabitEthernet0/0/6 interface."

what is the requirement for the Default - i belive that is not supported - what version of code running- refer the document :

https://www.cisco.com/c/en/us/td/docs/routers/asr903/software/guide/ce/17x/b-ce-xe-17-1-asr900/m_evc_900.html

BB

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Thank you for your response. 

I would like to add this service on the same interface which is in the image Gi0/0/6

service instance 21 ethernet
description CCTV
encapsulation default
xconnect 10.2.1.83  283335 encapsulation mpls
mtu 1500

Screenshot 2024-10-17 130027.png

Screenshot 2024-10-17 142720.png

 

that is limitation you need to tag with dot1q - check the documentation provided.

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Ramblin Tech
Spotlight
Spotlight

From the Config Guide for encapsulation-default usage: "You can configure only one default EFP per interface. If you try to configure more than one, the command is rejected."

Once you have configured "encap default" under an EFP for a given interface, all other EFPs on that same interface must use non-default encap types. "encap default" matches any encap not explicitly configured; if you had multiple EFPs configured with "default", which of these EFPs should an ingressing packet match against, as it can only match against one?

Disclaimer: I am long in CSCO

Dears, 

Could you please help me

I'm trying to configure two services on the same Cisco interface (GigabitEthernet0/0/6) using the default encapsulation. I'm using a Cisco ASR920 router.

"I'm having trouble configuring two services with default encapsulation on the same Cisco GigabitEthernet0/0/6 interface."

Screenshot 2024-10-17 130027.png

I would like to add this service on the same interface which is in the image Gi0/0/6

service instance 21 ethernet
description CCTV
encapsulation default
xconnect 10.2.1.83  283335 encapsulation mpls
mtu 1500

Hi @Muhammad-ly , it is not possible to configure two service instances with default encapsulation under the same physical interface.
However, you can work around this by using untagged encapsulation as an alternative, if tagging is not required.
If you share more details about encapsulation on each side, posible to give you alternatives. You can also check if VPLS can help you to archive such requiement in your topology.

Hope it can help to you.

Hi Mr. Albertt.

Thanks so much for your replay.. this is some image just to explain my situaton. 

Our network is a service provider network consisting of multiple routers interconnected using IP MPLS technology to provide Layer 2 connectivity between different locations for many clients like banks and other commincation companies.

1.JPG

 

2.JPG

 

3.JPG

 

 

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