Implementation of L2 Inter Autonomous System Service with Seamless MPLS on Nokia 7750 SR Metro Ethernet Device

The rapid development of information and communication technology has increased the need for more reliable and faster internet. As one of the leading technologies, Metro Ethernet uses devices such as the Nokia 7750 SR router to improve the quality of internet service providers (ISP) services. This study aims to implement layer 2 services between domains or Autonomous Systems (AS) with the seamless Multiprotocol Label Switching (MPLS) method on the Nokia 7750 SR Metro Ethernet device. Seamless MPLS is a service that expands direct interconnections between geographically separated local networks and can be used to form large-scale networks that can be used to build all types of services on the end-to-end MPLS LSP hierarchy. Seamless MPLS allows seamless expansion of MPLS networks between domains, improving performance with smaller routing tables and better delays. This study involves the design and configuration of an Inter-AS network using GNS3, where layer 2 connectivity between ASs is implemented via eBGP for interdomain tunneling. Redundancy topology is also used as a backup mechanism. Testing is done by analyzing network performance in terms of throughput and delay using Wireshark. The study results show an increase in network performance with more stable throughput and lower delay through seamless MPLS, as well as the effectiveness of redundancy in maintaining connectivity when a link failure occurs. This study provides a practical solution for layer 2 connectivity between AS with more optimal performance through seamless MPLS technology.