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Serial switches feature virtual channels, encryption

Posted: 04 Nov 2010 ?? ?Print Version ?Bookmark and Share

Keywords:serial switch? virtual channel? networking?

Integrated Device Technology Inc.'s (IDT) Serial RapidIO Gen2 family of switches has three new members with the introduction of the VPS-1616, the VPS-1848, and the SPS-1616.

Virtual channels on all ports on the 16-lane VPS-1616 and the 48-lane VPS-1848 allow system designers to leverage the usage and bandwidth of links within Serial RapidIO networks. A physical channel may be subdivided into multiple virtual lanes while bandwidth-reservation settings ensure user-defined throughput for each virtual channel for better traffic management, quality of service, and deterministic latency compared to other embedded interconnects.

IDT VPS-1616 16-land serial switch with virtual channels

The Serial RapidIO virtual channel functionality offers a continuous transmission feature for real-time traffic, such as voice or video, where real-time delivery of live traffic takes precedence over the transmission of 100 percent of data.

The IDT VPS-1616 and VPS-1848 also support 100ns cut-through latency and 300mW per 10Gb/s of traffic, similar to the previously announced IDT CPS-1616 and CPS-1848 Serial RapidIO Gen2 switches.

Hardware-based AES-128 encryption is available in the SPS-1616, a 16x1/8x2/4x4 Serial RapidIO switch. The optional security feature encrypts data on the transmit side and decrypts data on the receive side of up to four x1 Serial RapidIO ports.

No processor intervention is required as the Serial RapidIO link-level crypto functions are hardware handled. This means system deployment costs are reduced where out-of-the-box links need to be encrypted, such as in wireless LTE systems. Serial RapidIO data packets can be scrambled even at the full 5Gb/s of raw throughput with no increase in latency for each x1 link.

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