Protocol analyser integrates real-time jammer

Article By : Teledyne

The Sierra M244 platform has hardware-based triggering tools available to pinpoint protocol traffic of interest.

Teledyne LeCroy's Serial Attached SCSI 4.0 (SAS) Protocol Analyser platform includes fully integrated jammer capability for testing and verifying 24Gb/s SAS controllers, devices and systems.

Building on its SAS/SATA error injection system, the analyser's InFusion option can programmatically alter or corrupt traffic allowing early-adopters to create test cases for verifying next-generation SAS 4.0 protocol, Teledyne said.

The Sierra M244 operating as an analyser can record “4-wide” links with support for 3Gb/s, 6Gb/s, 12Gb/s and 24Gb/s SAS links as well as 3Gb/s and 6Gb/s SATA. When licensed with the InFusion Jammer option, the M244 provides a real-time error injector that can corrupt traffic on 1, 2 or 4 ports. The system can simultaneously record traffic over the same physical link selected for error injection. By default, the analyser will use two channels to monitor before and after the error (A-J-A mode).

In analyser mode, hardware-based triggering tools are available to pinpoint protocol traffic of interest. Common protocol errors are flagged automatically, including forward error correction (FEC) errors and incomplete commands. Also available in this release is the Link Tracker DWORD-based display that shows every SPL segment across all four physical links in a separate column allowing easy lane-to-lane timing measurements.

The Sierra M244 platform is available with full SAS 4.0 support. Configurations are also available with SAS 3.0 (12 Gb/s) support that is upgradeable to 24Gb/s in the future.

The Sierra M244 analyser features both sequential and hierarchical displays, protocol traffic summaries, detailed error reports, and raw views of the 150-bit SPL packet structures allowing developers to troubleshoot low-level problems and deliver the high quality SAS 4.0 solutions, Teledyne added.

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