Fundamentals of 40-Gbps Bidirectional QSFP Transceiver Modules

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Fundamentals of 40-Gbps Bidirectional QSFP Transceiver Modules

The data center network is shifting to 10 Gbps at the access layer and 40 Gbps at the aggregation layer. This is a result of data center consolidation, server virtualization, and new applications that require higher data transport rates. High-performance and high-density 10- and 40-Gbps network devices, such as Cisco Nexus 9500 and 9300 switches, are now available at attractive prices for this transition.

However, to support 40-Gbps connectivity, data center architects need to upgrade the cabling infrastructure. This can be too expensive or disruptive to allow data centers to quickly adopt and migrate to the 40-Gbps technology.

Cisco solves this problem with innovative 40-Gbps Quad Small Form-Factor Pluggable (QSFP), bidirectional (BiDi) technology. It allows for zero-cost fiber migration by reusing the current 10-Gbps cabling for 40- Gbps device connectivity.

Reduce Data Center Cost

Migrate your data center to 40 Gbps without upgrading the fiber infrastructure.