Data Center Interconnections: Technical Implementations
As more and more companies deploy secondary data centers, service providers must provide suitable interconnects that offer sufficient performance. The July article explores data center interconnects on the high-level and this time we focus on what technology to use to actually implement the interconnection.
In this article, Jaroslav Rajić, CCNP/CCIP and CCSI at NIL Data Communications, analyses the advantages and limitations of two distinct approaches of designing the Data Center interconnect. One approach primarily relies on OSI Layer 2 (e.g. MetroEthernet with VLANs) and the other on OSI Layer-3 approach (IP and MPLS), with several »flavours« in-between. The analysis includes the comparison of OSI Layer 2 (802.1q, QinQ, P2P EoMPLS, VPLS) and OSI Layer 3 (L3 MPLS VPN), and mentions the OSI Layer 1 options (Dark Fiber, etc.).
Read more in the attached document‹ back