The SG1010 is a cascadable 6 port StarFabric switch that connects to other StarFabric switches or bridges to create StarFabric switch fabrics. The SG1010 switch provides 30 Gbps of aggregate, non-blocking, full-duplex switching capacity through six StarFabric links. Each link can simultaneously transmit and receive at 2.5 Gbps. A standard link is made up of four aggregated 622 Mbps LVDS differential pairs in each direction. Two 2.5 Gbps full-duplex links can also be bundled to create a 5 Gbps full-duplex link.

The SG1010 supports three routing methods. Address routing, which allows PCI designs to be transparently migrated to StarFabric, supports PCI traffic over the fabric without requiring any software development. Existing PCI designs can quickly take advantage of StarFabric's performance and scalability through address routing, and can further enhance performance, features and reliability by moving to native StarFabric routing methods at a future time.

Path routing and multicast routing are StarFabric native routing methods that introduce advanced features like redundancy through failover, Quality of Service, security mechanisms and multi-processor fabrics. Dolphin provides software tools and libraries to take full advantage of these advanced features.

KEY PRODUCT FEATURES

Scalability and Performance

Six StarFabric links, 2.5Gbps, full duplex

Two links can be bundled to create a 5 Gbps link

30 Gbps switching capacity

Head-of-line blocking is limited

Asymmetric link support

Compatibility

Three routing methods:

• Standard PCI address routing
• Path routing
• Multi-cast routing

Standard PCI addressing supports 100% PCI software compatibility

Software compliant with the PCI Local Bus Specification Revision 2.2 and the PCI-to-PCI Bridge Specification Version 1.1.

Physical layer interface complies with the IEEE 1596.3 and TIA/EIA-644 Low-Voltage Differential Signaling (LVDS) standards.

Quality of Service

Credit-based flow control: Path-based (next turn) credits and Class of Service (CoS) credits

Four Classes of Service with separate buffering for each. Supported classes are:

• asynchronous
• isochronous
• multicast
• high priority traffic classes

Design limits head-of-line blocking

Dynamic bandwidth reservation protocol

Reliability, Availability and Serviceability

Link-by-link CRC checking on all traffic

Fault detection and isolation

Redundant path routing capability

Path protection capability on register accesses for security

Hot-pluggable linking

Additional Features

Flexible event dispatch functionality either locally or remotely

In-band PCI interrupt routing with legacy "swizzle" based on device number

Supports software generated StarFabric Special Frames

Supports two semaphores with six operations per semaphore

SROM interface for register pre-load and vital product data

IEEE standard 1149.1 JTAG interface

Eight general-purpose I/O pins with accessible registers

LED indicators for each differential pair