MPLS L2VPN - Any Transport over MPLS (AToM) by Arash Deljoo

person icon Arash Deljoo

MPLS L2VPN - Any Transport over MPLS (AToM) by Arash Deljoo

AToM , EoMPLS Concepts,Configuration and Verification ( will update )

updated on icon Updated on Nov, 2023

language icon Language - English

person icon Arash Deljoo

architecture icon CCNP Enterprise,CCNP CCIE

Lectures -15

Resources -42

Duration -3.5 hours


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Course Description

Any Transport over MPLS (AToM) accommodates different types of Layer 2 packets, including Ethernet and VLAN, to enable the service provider to transport different types of traffic over the backbone and accommodate all types of customers. 

AToM adheres to the standards developed for transporting Layer 2 packets over MPLS. Other Layer 2 solutions are proprietary, which can limit the service provider’s ability to expand the network and can force the service provider to use only one vendor’s equipment.

Upgrading to AToM is transparent to the customer. Because the service provider network is separate from the customer network, the service provider can upgrade to AToM without disruption of service to the customer.

The successful transmission of the Layer 2 frames between PE devices is due to the configuration of the PE devices. You can set up the connection, called a pseudo wire, between the routers and specify the following information on each PE device:

  • The type of Layer 2 data to be transported across the pseudowire, such as Ethernet or VLAN.
  • The IP address of the loopback interface of the peer PE device, which enables PE devices to communicate.
  • A unique combination of peer PE IP address and virtual circuit (VC) ID that identifies the pseudo wire.

AToM encapsulates Layer 2 frames at the ingress provider edge (PE) and sends them to a corresponding PE at the other end of a pseudo wire. The egress PE removes the encapsulation and sends out the Layer 2 frame.


What will you learn in this course:

  • What will students learn in your course? 
  • Understanding the Need for Any Transport over MPLS (AToM)
  • Any Transport over MPLS (AToM) Concepts , Configuration , Verification
  • Ethernet over MPLS (EoMPLS) Concepts , Configuration , Verification
  • Signaling the Pseudo wire


What are the prerequisites for this course?

  • You need to have MPLS Fundamental knowledge .
  •  You can implement the scenarios of this course in GNS3 or EVE-NG.
MPLS L2VPN - Any Transport over MPLS (AToM) by Arash Deljoo


Check out the detailed breakdown of what’s inside the course

15 Lectures
  • play icon Understanding the Need for AToM 05:21 05:21
  • play icon Transporting Layer 2 Frames 07:05 07:05
  • play icon AToM Architecture 06:43 06:43
  • play icon Data Plane of AToM 07:15 07:15
  • play icon AToM Basic Configuration 15:43 15:43
  • play icon Signaling the Pseudowire 26:15 26:15
  • play icon EoMPLS Carrying Simple Ethernet 12:47 12:47
  • play icon EoMPLS Carrying Ethernet Trunk 11:07 11:07
  • play icon EoMPLS Carrying one VLAN 08:47 08:47
  • play icon AToM Pseudowire Redundancy 17:16 17:16
  • play icon AToM Tunnel Selection 15:47 15:47
  • play icon AToM Case Study - Unequal-Cost Multipath 11:08 11:08
  • play icon AToM Case Study - Equal-Cost Multipath 10:10 10:10
  • play icon AToM Case Study - Preferred Path Using IP Routing 33:44 33:44
  • play icon AToM Case Study - Preferred Path Using MPLS Traffic Engineering Tunnels 25:20 25:20

Instructor Details

Arash Deljoo

Arash Deljoo

Arash is an experienced Cisco engineer with 15 years of experience working in network engineering, communications, and education–particularly in training with E-learning companies. He earned a MSc in power electrical engineering from Tehran Polytechnic.  He produces training courses in Persian and English.

The total number of his students in face-to-face and online teaching courses has been more than 10,000.

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