South Korean Airport Railroad Express Selects juniper MX Series Routers and EX Series Switches


South Korean Airport Railroad Express (AREX), a commuter railway connecting South Korea’s international airports to its capital city, has selected Juniper Networks’ solutions for its upgrade to a modern all-IP based communications network. AREX is South Korea’s first domestic railway to feature an all-IP based communications network that integrates wired and wireless networks, enabling efficient network deployment as well as strengthened security and stability through MPLS VPN.

As an important international hub for business and tourism, having efficient transportation infrastructure between the country’s busy ports of entry and the metro urban centers is crucial. Particularly important is connectivity to-and-from Incheon International Airport (ICN), which has consistently been rated as one of the best1 and busiest2 airports in the world, and which has seen continued growth in traffic as one of the largest international gateways into Asia.

Initially launched as a link between ICN and Gimpo International Airport, AREX was expanded directly to Seoul Station in the capital in 2010 and has been providing safe, seamless, and convenient connectivity for travelers ever since. With ICN’s continued growth, AREX was looking to further strengthen the railway’s operational efficiency and to keep up with its growing network infrastructure needs.

A major priority was the upgrade of its communication network which plays a vital role in ensuring uninterrupted data transmissions to the railway’s numerous technological systems. This includes systems across signaling, supervisory control and data acquisition, video surveillance, and wired/wireless networks.

Juniper Networks was identified and selected for the upgrade – which was to build out a modern IP/MPLS communications network using AI-driven solutions – improving the stability of AREX’s mission-critical systems while supporting the delivery of reliable train services.

News Highlights:

  1. Juniper’s routing and switching solutions provide the foundation of AREX’s secure, reliable and flexible all-IP based communications network across multiple deployment sites while enabling the unified transmission of multiple services
  2. The MX960 Universal Routing Platform, alongside the EX9208, EX4600, and EX3400 series of Ethernet Switches, are deployed at the networking control office in AREX’s transmission facility
  3. Bringing AI-driven insights, operations, and troubleshooting, the EX switches at the transmission facility are enhanced with Wired Assurance, which provides streamlined AI-driven operations, automation, and visibility
  4. Elsewhere, the MX104 Universal Routing Platform and EX3400 are deployed at the station’s equipment wing
  5. AREX has also introduced an integrated operations management system that unifies communication protocols and facility maintenance systems, improving efficiency across operations and fault management
  6. AREX can now continuously improve the overall commuting experience with the additional flexibility to expand their IoT infrastructure with extra bandwidth and redundancy

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