What is data center interconnect (DCI) layer 2 encryption?
Layer 2 is the data-link layer specified by the Open Systems Interconnection (OSI) model, which standardizes the functions of telecommunications and computing systems around the world1. Layer 2 encryption secures information at the data-link level as it is transmitted between two points within a network2 .
Challenges with Unencrypted Network Data
- Cybercriminals can “eavesdrop” on unencrypted data traveling over a network. This compromises privacy and makes it possible for these criminals to modify or substitute data to stage more sophisticated attacks.
- Many industry mandates require protection for data in motion, and organizations that do not implement this protection risk fines and being required to disclose data breaches.
- Depending on the application, encryption capabilities embedded in routers and switches may not offer the combination of security and performance enterprises need.
Advantages of Layer 2 Encryption
Layer 2 encryption protects data in transit, so it is useful when the transmission line is not secure. But, because the message is decrypted at each host in the transmission path, Layer 2 encryption is best suited for systems in which every transmission host is secure.3
Related Articles
Secure your digital assets, comply with regulatory and industry standards, and protect your organization’s reputation. Learn how Thales can help at the following links:
- Securing Data in Motion
- High Speed Encryption Solutions -- Solution Brief
- Protecting SD-WAN Data in Motion -- Infographic
1 https://www.wideband.net.au/blog/difference-layer-3-layer-2-networks/
2 http://searchsecurity.techtarget.com/definition/link-encryption
3 Ibid