Our customer is a leading services provider in Ireland in the fields of Telecommunications, Data Connectivity and Security. Their business is expanding rapidly, and they are already serving many thousands of customers worldwide. Their portfolio includes a wide range of services such as broadband and telephony for both residential and business customers.


Rising operational costs due to the burden of legacy systems

The customer has extended its existing core network continuously over recent years following substantial business success and the need for greater bandwidth capacity and new services. This commercial success has led to the current core network reaching its operational limits, while the entire infrastructure has become more and more complex, resulting in rising operational costs.


Xantaro audit the network for future growth

To ensure that the company is well prepared for the future, Xantaro was asked to audit the entire network infrastructure and to develop the technical designs for future growth. After evaluating the network, it was jointly decided with the customer that, in the interests of sustainable business success and the most effective technical solution, it was best to implement an entirely new core network based on Nokia’s technology stack.

Nokia 7750 SR-12 Service Router & Nokia 7210 SAS-Sx satellites

Nokia’s 7750 SR platform with 7210 SAS as satellites

Xantaro designed the new 40 Gbps (upgradable to 100 Gbps) core network based on Nokia’s 7750 SR Service Router platform serving as a collapsed P/PE router, using the 7210 Service Access Switches (SAS) as satellites to aggregate 10GE ports via 100 Gbps uplinks. The flexible port extension through the 7210 platform ensures maximum cost efficiency and scalability for future growth resulting in 128 of 10GE ports per site.


Download Article:  Xantaro – Building a new core network



Project overview


  • Telecommunications, Data Connectivity and Security Service Provider



  • Need for greater bandwith capacity and new services
  • Current core network reaching its operational limits
  • Entire infrastructure has become more and more complex



  • Xantaro audited the whole network infrastructure
  • Xantaro designed new 40 Gbps core network (upgradeable to 100 Gbps)
  • Based on Nokia’s architecture
  • Nokia 7750 SR platform as a collapsed P/PE Router
  • Nokia 7210 SAS serving as satellites to aggregate 10GE ports via 100 Gbps uplinks