Chelsio's T420-CX is a dual port 10 Gigabit Ethernet unified wire adapter with PCI Express 2.0 host bus interface, optimized for cloud computing, HPC, virtualization, storage, and other data center applications.
The fourth-generation (T4) technology from Chelsio provides the highest 10 GbE performance available and dramatically lowers host-system CPU communications overhead with on-board hardware that off-loads TCP/IP, iSCSI, FCoE and iWARP RDMA processing from its host system. T420-CX frees up host CPU cycles for useful applications. The system achieves increased bandwidth, lower latency, and lower power.
T4 - fourth-generation protocol offload engine
The T4 is Chelsio's fourth-generation TCP offload (TOE) design, third-generation iSCSI design, and second-generation iWARP (RDMA) implementation. For the server connection, the T4 chip includes a PCI Express v2.0 x 8 host interface. With support for the 5 Gbps Gen2 data rate, the PCIe interface provides up to 32 Gbps of bandwidth to the server. T4 also adds support for PCIe I/O virtualization.
Complete and flexible TCP offload
The T4 has hundreds of programmable registers for protocol configuration, RFCs, and offload control. The T420-CX can offload TCP processing per connection, per-server, per-interface, and globally and simultaneously tunnel traffic from non-offloaded connections to the host processor for the native TCP/IP stack to process. The T420-CX provides a flexible zero copy capability for regular TCP connections, requiring no changes to the sender, to deliver line rate performance at minimal CPU utilization.
Packet switching and routing
T420-CX integrates a high performance packet switch, which allows switching traffic from any of the input ports to any of the output ports (wire-to-wire) and from any of the output ports to any of the input ports (host-to-host).
Robust, proven solutionProduct Highlights
Subjected to thousands of hours of compatibility testing, over multiple years of stress testing by several OEM test suites and production deployments in servers, storage systems and cluster computing, Chelsio's robust, stable protocol offload technology delivers proven performance in a wide range of environments.
- PCI Express generation 2 x 8
- Low latency
- Full TCP and UDP offload
- TCP chimney
- Full iSCSI, FCoE offload
- Full iWARP RDMA offload
- Integrated media streaming offload
- HW based firewall in the cloud
- Traffic filtering and management