Chelsio's T440-CR is a quad 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. T440-CR frees up host CPU cycles for useful applications. The system achieves increased bandwidth, lower latency, and lower power.
The unified wire solution
With the T440-CR, Chelsio has enabled a unified wire for LAN, SAN and cluster traffic. This unified wire was made possible by the high bandwidth and low latency of 10 GbE combined with storage and cluster protocols operating over TCP/IP (iSCSI, FCoE and iWARP respectively). In parallel, operating systems and hypervisors have incorporated native support for iSCSI and database applications are now supporting file-based storage protocols such as NFS as an alternative to SANs. T440-CR includes a full-fledged integrated traffic manager for robust flow control, traffic management and QoS. Fiber Channel over Ethernet (FCoE) provides a transition path from legacy SANs to converged networks. Expanding its unified wire approach, Chelsio has added FCoE hardware support to the T440-CR adapter. The adapter's quad ports and IEEE 802.3ad link aggregation/failover features are ideal for critical network applications that require redundancy and high-availability capabilities. T440-CR Ethernet-only networking reduces the data center's cost in network adapters, cables, switches, rack space, power, equipment spares, management tools, planning, networking skills, and installation.
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 ×8 host interface. With support for the 5 Gbps Gen2 data rate, the PCIe interface provides up to 32Gbps of bandwidth to the server. T4 also adds support for PCIe I/O virtualization. Most of T4 features are enhanced versions of those found in T3. Features that carry over from T3 include stateless offloads, packet filtering (fire-wall offload), and traffic shaping (media streaming).
Packet switching and routing
T440-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).
Robust, proven solution
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.
Complete and flexible TCP offloadProduct Highlights
The T4 has hundreds of programmable registers for protocol configuration, RFCs, and offload control. The T440-CR 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 T440-CR 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.
- PCI Express Gen2 x8
- Supports up to 1M connections
- 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