Marketing description

Chelsio's T580-LP-CR is a dual port 40 Gigabit Ethernet Unified Wire adapter with PCI Express 3 host bus interface, optimized for cloud computing, HPC, virtualization, storage, and other data center applications.
The fifth-generation (T5) technology from Chelsio provides the highest 40 GbE performance in the industry and dramatically lowers host-system CPU communications overhead with on-board hardware that offloads TCP/IP, iSCSI, FCoE and iWARP RDMA processing from the host system and frees up host CPU cycles for other applications. As a result, the system benefits from higher bandwidth, lower latency, and reduced power consumption.

Key selling points

• T5 - fifth-generation protocol offload engine
• Complete and flexible TCP offload
• Packet switching and routing
• Robust, proven solution

Product features

• T5 - fifth-generation protocol offload engine
  The T5 is Chelsio's fifth-generation TCP offload (TOE), fourth-generation iSCSI, and iWARP (RDMA) design. T5 builds upon the T4 feature set and improves performance across the board. On the host bus side, the T5 exposes a PCI Express v3.0 x8 host bus interface, with up to 64 Gbps raw bandwidth to the server. T5 also provides support for PCIe I/O virtualization and integrated VM-to-VM switching.
• Complete and flexible TCP offload
  The T5 has hundreds of programmable registers for protocol configurations, RFCs, and offload control. The T580-LP-CR can offload processing per connection, per-server, or per-interface, and simultaneously tunnel traffic from non-offloaded connections to the host processor for the native TCP/IP stack to process. The T580-LP-CR provides a flexible zero-copy capability for regular TCP connections, requiring no changes to the application and delivers line rate performance at minimal CPU and memory subsystem utilization.
• Packet switching and routing
  T580-LP-CR 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), with header rewrite and NAT offload.
• Robust, proven solution
  Subjected to compatibility and stress testing over multiple years by several OEM test suites, and with production deployment in servers, storage systems, and cluster computing, Chelsio's robust, stable protocol offload technology delivers proven performance in a wide range of environments. The T580-LP-CR is generations ahead of competing products in robustness and implementation maturity.