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Internet & Networking


The Connecticut Education Network (CEN) provides reliable, high-speed internet access, data transport, and value-added services to its members throughout Connecticut. We offer network, security, application, hosting and professional development service options.


With our connectivity, you are able to burst over your committed bandwidth up to the full Ethernet circuit speed as needed. Bursting is useful for increased network demand, which could be due to high download usage or live media streaming, including video TelePresence. Having burst capacity gives you greater freedom and flexibility for your business. Flexible capacity frees you from relying on quality of service to ensure the important things for your business get through by the prioritization of applications. It is also advantageous when using cloud services. You can still do everything even during peak usage times!


CEN maintains multiple geographically diverse connections to other Tier1 providers. The service leverages diverse fiber routes from other service providers between Boston and NYC.


We offer 24-hour support available by phone service that gives you access to a qualified technician to diagnose and troubleshoot problems with your service. This service is always available, 24 hours, 7 days a week, 365 days a year (860-622-4560 or This monitoring service means that an alert is possible within five minutes of problems occurring with customer connectivity. This high quality and high frequency level of monitoring is in line with industry standards, those used by CEN itself, Internet2 and other comparable service providers and research networks nationally.


CEN’s fiber network across CT has been built with a high level of redundancy, which means we can offer an ISP with a high level of resiliency. Our core fiber optic hub has connections in more than twenty different locations around the state. This means that we can sustain multiple, different fiber optic breaks and still ensure that your data is transmitted.

As part of your ISP connection to CEN, you get /29 allocation of CEN IPv4 addressing and a / 48 of CEN IPv6 addressing. We also offer options for additional IPv4 addressing for use on your CEN connection (on a monthly rental basis). Contact us if interested. We encourage CEN members to start taking steps to move to IPv6. This checklist highlights what you need to get IPv6 fully implemented. With the number of devices that need network connectivity growing every year, the time to get IPv6 going is now! There are not enough IPv4 addressing to support the ever-growing list of network-connected devices. CEN can enable IPv6 for you and will work with you to answer any questions you may have on enabling IPv6 on your CEN connection.

Access to Internet2

Researchers understand that high performance computing depends on networks built to the highest standards. CEN offers access to the Internet2 Backbone via our 100Gbps fiber connections and can connect to other Internet2 research and educational organizations through direct Layer 2 connection which is often a technical requirement for specific high-speed research computing applications/ data center interconnect. More information on Internet2.

CEN offers access to Internet2 through our 100Gig backbone connection in Hartford, CT and via Northern Crossroads (NoX) in Boston, MA, our secondary Point of Presence. CEN also has connections to other Tier1 providers in Stamford and West Haven, CT. We are in the process of extending our access to include expansion to NYC. In addition to access to Internet2 routes, advanced services such as IP multicast and IP version 6 (IPv6) are available, as well as dedicated private circuits to other Internet2 members.

Private Ethernet Service

We offer customized private ethernet services (also known as virtual private network, VPN).  CEN's VPN service provides a managed service, your traffic is secured and separated from other members' traffic on the network through the use of VPN tunneling.  Speeds range from 10 Mbps to 10 Gbps.  The utility of these depend on your needs and can be used for example, for disaster recovery, as a remote storage option (hosting data off site), to establish a dedicated port (port fee separate) to host this connection or as required by certain applications to provide functionality you wouldn’t have otherwise.

Depending on your needs/ application we can offer:

Layer 2 “Point-to-point” E-LINE circuit “Virtual Wire”  offers a secure connection between specific points.

Layer 2 “Full Mesh” (Point-to-multipoint) E-LAN circuit “Virtual LAN” allows for more connections with the same network.

Managed WIFI

CEN offers a comprehensive managed Wi-Fi solution that brings together broad coverage that can support high capacity usage with a high degree of quality assurance for your user’s experience.

Managed WiFi Features Benefits of using CEN  
Comprehensive wireless service coverage provides high capacity usage (quality over physical space). Quality Assurance Guarantee
Site survey and consultation provided by CEN in order to provide the highest levels of coverage required and determine optimal coverage. Professional wiring installation by licensed structured cabling vendors (quality and warranty guarantee). Wireless radios installed, and their performance tested by CEN network professionals.
Improve Internet access CEN engineered end-to-end performance from the wireless edge through our fiber optic backbone.
High demand services such as VOIP and Videoconferencing over WiFi are easily achieved.
Unmatched Visibility Visibility into network users, their devices and their applications. Monitoring of wireless network via cloud-based system and CEN NOC.
Scalable and Future-proof Easy to add wireless capacity. Enable IPv6 access and capabilities on wireless and Internet access services.
Ease of use and time efficient Automated system drastically reduces need for staff involvement or expertise.

Option to leverage CEN’s  web filtering.
Option to leverage CEN’s  managed firewall services.
Option to leverage CEN’s video conferencing services.

CEN Wireless Dashboard

  • Easily see top applications on your network to understand largest bandwidth users.
  • Verify coverage and functionality of your wireless system, be able to view your wireless clients visually and see where there are high usage areas.

Option of self-managed service that would consist of installation, licensing and dashboard access.

Optical Transport

CEN offers dedicated transport services on our optical network connecting 19 locations around the state.

We are able to provide dedicated transport via optical transport network (OTN) providing Layer 1 point-to-point connectivity with 50ms restoration from path failures. These can be either 1G, 10G, or 100G handoff, single mode or multimode.

Dedicated ITU-T G.698.1 DWDM channel between locations on CEN's optical network.  We are able to transport member information at a pure light wave level and is protocol-agnostic.  This requires optics that are tuned to match specific frequencies.