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Protocol Analyzers

SierraNet M648

The SierraNet M648 Ethernet and Fibre Channel test platform provides best in class analysis, jamming and generation for traffic capture and manipulation for testing application and link characteristics. SierraNet M648 is the latest in the line of industry leading test and measurement tools from Teledyne LeCroy, designed for today’s high-speed storage and communications fabrics. SierraNet M648 supports examination and modification of Ethernet and Fibre Channel links utilizing both Pulse Amplitude Modulation 4 (PAM4) and legacy Non-Return to Zero (NRZ) technologies.

Explore SierraNet M648 Explore SierraNet M648
SierraNet M648  The SierraNet M648 Ethernet and Fibre Channel test platform provides best in class analysis, jamming and generation for traffic capture and manipulation for testing application and link characteristics. SierraNet M648 is the latest in the line of industry leading test and measurement tools from Teledyne LeCroy, designed for today’s high-speed storage and communications fabrics. SierraNet M648 supports examination and modification of Ethernet and Fibre Channel links utilizing both Pulse Amplitude Modulation 4 (PAM4) and legacy Non-Return to Zero (NRZ) technologies.
SierraNet T328  The SierraNet T328 system provides for analysis of 10/25/40/50/100Gbps Ethernet and Gen 6 (32GFC) Fibre Channel data capture and protocol verification for developers & protocol test engineers in LAN, SAN, NAS and other Ethernet and Fibre Channel applications. Available with eight SFP28 FlexPorts™ for maximum configuration and utility, the SierraNet T328 includes an easy to use, customizable software interface, large capture buffers, and the most advanced T.A.P4 capture, triggering and filtering capabilities in the industry.
SierraNet M328  The SierraNet M328™ system provides for analysis and jamming of 10/25/40/50/100Gbps Ethernet and Gen 6 (32GFC) Fibre Channel data capture and protocol verification for developers & protocol test engineers in LAN, SAN, NAS and other Ethernet and Fibre Channel applications. Available with eight SFP28 FlexPorts™ for maximum configuration and utility, the SierraNet M328 includes an easy to use, customizable software interface, large capture buffers, and the most advanced capture, triggering, impairment and filtering capabilities in the industry.
SierraNet M328Q  The SierraNet M328Q™ system provides for analysis and jamming of 10/25/40/50/100Gbps Ethernet and Gen 6 (32G) Fibre Channel data capture and protocol verification for developers & protocol test engineers in LAN, SAN, NAS and other Ethernet and Fibre Channel applications. Available with two QSFP28 FlexPorts™ for maximum configuration and utility, the SierraNet M328Q includes an easy to use, customizable software interface, large capture buffers, and the most advanced capture, triggering, impairment and filtering capabilities in the industry.
SierraNet M168  The SierraNet M168 is the most cost effective, advanced and fully integrated analysis and jamming platform for 10Gbps Ethernet and 16G Fibre Channel data capture and protocol verification systems available for developers and protocol test engineers. The SierraNet M168 supports 100% recording of all Fibre Channel and Ethernet related traffic at full line rates on all ports while maintaining the link integrity through non-retimed pass-through probe technology.

Fibre Channel provides a secure, bi-directional, physical or logical point-to-point, low latency connection between two devices at a time. Like other serial interfaces such as Serial Attached SCSI (SAS), in Fibre Channel data is transmitted over the physical medium in serial fashion as opposed to parallel methods, which are used in SCSI and ATA physical interfaces. Serial transmission enables much longer connection distances as compared to parallel transmission methods, because far fewer signal lines are required, thereby reducing noise created by multiple signal lines all switching at the same time (cross talk).

A primary use for Fibre Channel is in the transport of block oriented storage traffic in SAN (Storage Area Network) applications. There are also specialized upper layer Fibre Channel protocols that are used in Defense and Avionics applications, to transport video streams for heads-up displays, for example.

Fibre Channel is designed to work with either optical fiber physical medium or copper cables in many connector and cable type configurations. Copper cables are relatively inexpensive, but they are useable only for shorter distances, in the range of 5-meters at 16GbFC and 3-meters at 32GbFC. In general, the higher the transmission speed, the shorter the distance that can be reliably supported by copper cable technology. A variety of copper solutions are available, the most commonly used being Direct Attach Copper (DAC) cabling in both SFP (Small Form-factor Pluggable) and QSFP (Quad Small Form-factor Pluggable) configurations. SFP and QSFP optical cabling solutions are also available, supporting reliable transmission distances greater than 10 meters, up to about 10 kilometers.

Architecture

Fibre Channel is a layered protocol, and is modeled loosely on the OSI model for networks. In the OSI model, and in the case of Fibre Channel, each layer provides specific services and makes the results available to the next layer.  Figure 1 below compares the defined OSI layer to the defined Fibre Channel layers.

OSI Model Fibre Channel
7 - Application  
6 - Presentation  
5 - Session FC-4 Protocol map
4 - Transport FC-3 Services
3 - Network FC-2 Framing
2 – Data Link FC-1 Data Link
1 - Physical FC-0 Physical
Figure 1, OSI Model and Fibre Channel Network Layers

The layers in the table represent different functions and services that exist within the Fibre channel protocol definition. As with the other communication standards, protocol level analysis is often focused at the link layer (FC-2) and above.

Fibre Channel, like any network architecture, transports blocks of application information, called data payloads. Before sending a payload over the physical link, additional Fibre Channel specific control bytes are added to both the start and the end of the payload data. The combination of the control bytes and the payload data is called a frame, which is the basic unit of information in Fibre Channel.

Fibre Channel transfers data through switched or direct point-to-point connections which work by creating session specific connections between the source and destination devices. These connections last only until the transfer is completed and can be temporarily preempted by higher priority transfer requests.

Connections are made on Fibre Channel systems through “interconnect components” such as switches, hubs, and bridges. The ability of Fibre Channel to use different interconnect devices makes it flexible and scalable depending on user needs. A fully switched Fibre Channel network is called a Fabric topology. Fabric topology permits multiple alternative paths to be established between any two ports in the Fabric.

Summary

Fibre Channel protocol is designed to support very low latency and high data transfer rates. The currently approved standard supporting up to 32Gb/S is generally referred to as 32GFC. Server virtualization and storage virtualization are broad trends that are driving the need for higher bandwidth. The need for high bandwidth in the network infrastructure is just now beginning to drive the replacement of previous product generations of 4,8 and 16GFC by 32GFC and soon, 64GFC.

Fibre Channel is a good choice for any environment with many servers needing lossless access to centralized storage, computer data centers for example. Because of this, Fiber Channel enjoys over 80% market share as the network interface used in external storage systems such as SAN environments.

 

Key Features
  • 2U form-factor with rack mount kits
  • Analyze PAM4 Native Ethernet and Fibre Channel fabrics
    • 50/100/200GbE PAM4
    • 64GFC PAM4
  • Fall-Back support for NRZ based links/speeds
    • 10/25/50/100GbE NRZ
    • 16/32GFC NRZ
  • Layer 1 analysis support for link layer negotiation analysis
    • New 400GbE PAM4 AN/LT Only option
  • Complete bi-directional capture of line rate traffic
  • API for automation of test routines
    • Python scripts for popular Linux OS environments
    • Post capture, comprehensive analysis capabilities with Verification Script Engine™
  • Deep memory buffers and pre-capture filtering for extended analysis needs
  • Advanced, multi-state triggering & filtering
  • Comprehensive, multi-condition Error Injection and Traffic Jamming capabilities
  • Standard 64GB recording buffers
  • Dynamic memory allocation
  • Extensive Ethernet and Fibre Channel protocols supported, including FCoE, NVMe-oF, ORAN, PTP 1588, RoCE and iSCSI
  • Multiple trace view formats
  • Seamless WireShark integration
  • USB 3.0 & Gigabit Ethernet Host Interfaces for fast upload and easy management

The SierraNet M648 family offers the most cost effective, advanced and fully integrated Ethernet and Fibre Channel data capture and protocol verification systems available for developers and protocol test engineers. The M648 protocol analysis systems provide engineers with 100% recording of all Fibre Channel and Ethernet related traffic at full line rates on all ports and offers the addition of error injection and traffic corruption with our InFusion™ tools for advanced validation and verification testing.

Flexibility to Meet Any Debug Challenge

The SierraNet M648 hardware platform and graphical user interface provides the highest level of performance and flexibility available in the market for legacy and todays’ emerging high-speed network and fabric deployments.

The SierraNet M648 provides ultimate flexibility in analysis and verification of traditional or converged Ethernet and Fibre Channel products in a single platform and the flexibility to add protocol specific features, functionality, and speed support at the time of purchase or later by the addition of license keys.

Each FlexPort SFP28 pair can probe both Ethernet and Fibre Channel links of speeds up to 50Gbps/link for Ethernet and/or 64G FC/link on copper or optical cabling and eliminates the need for separate "single function" blades, pods, or adapters found in some competitive products providing a highly compact, extremely flexible, multi-function protocol analyzer.

The SFP28 pairs may be aggregated to support 100Gbps Ethernet links, and the integrated QSFP-DD connections support all Ethernet rates – 50GbE, 100GbE and 200GbE link traffic – for both analysis and jamming applications. Additionally, the QSFP-DD connections support the Auto-Negotiation and Link Training analysis of 400GbE ISL links.

In addition to FlexPort technology, the SierraNet M648's sophisticated analysis and jamming software, the Net Protocol Suite, provides unmatched flexibility with customized data displays that easily identify and navigate to specific events of interest quickly. Decoding in the Net Protocol Suite's multiple trace views provide superior visibility for troubleshooting low level to application layer issues, decode per the supported specifications and their associated encoding schemes, and the zero-time search and filter capabilities easily find Ethernet and Fibre Channel events in a contextual and intuitive way. In a multi-protocol environment, Teledyne LeCroy's CrossSync™ can synchronize and correlate traces with our other leading protocol analysis tools, such as the PCI Express Summit analyzers, to understand how traffic, stimulus, and/or errors propagate across bridges or adapters.

 

2U “Zero” Brand Aluminum Carry Case
Rack Mount Rail Kit for SierraNet Platforms
SierraNet Functional License Options

 

The Teledyne LeCroy InFusion™ (Jammer) Error Injector and Traffic Modifier tool allows users to verify real‐world fault handling for both Ethernet network and Fibre Channel fabric systems.  InFusion is only available for SierraNet platforms enabled with Digital Retimed circuitry and sits unobtrusively in the data path on a live system to programmatically alter or corrupt traffic. InFusion is the ideal tool for stress‐testing systems using actual workloads and devices.

SierraNet InFusion supports Ethernet link speeds from 10GbE up to 100GbE and Fibre Channel links up to 32 Gbps, depending on the capabilities of the licensed SierraNet platform. InFusion monitors traffic from both directions in real‐time and through the use of customer defined parameters, replaces or modifies any bit, ordered‐set, checksum or other parameters with those specified for the test case.

InFusion can change traffic when it detects a specific sequence or reaches a designated time interval, yet it requires no complicated scripts, programming, or simulation tools. InFusion can monitor traffic in both directions and act on events occurring in either direction of the communications link. InFusion can even modify bi-directional traffic within a given test scenario, either from the Originator or from the Responder. InFusion is specifically designed to verify recovery characteristics within a subsystem. An easy, user friendly menu interface with icons and hyperlinks allows you to create specific test Scenarios in just minutes.

Once an InFusion session starts, the system automatically handles protocol handshaking between devices. InFusion transmits a faithful copy of the original data stream down to the CRC value which, if needed, it recalculates. InFusion allows test engineers to systematically verify error recovery in ways not possible with other test platforms.

Key Features:
  • Error Injection: Injects CRC, disparity, PCS encoding (8b/10b, 64/66b, etc) framing, and coding errors.
  • Break Link Recovery: Programmatically breaks the connection to test link recovery.
  • Value Replacement: Monitors the link for specific values, patterns, or ordered‐sets (as low as bit level) and replace with user‐defined values. You can replace values on every occurrence, after a specified number of occurrences, or after a specified time interval.
  • Packet Drop: Removes individual ordered‐sets or frames from the stream to verify retry behavior.
  • Packet Delay: Capture and individual frame and re-inset into the data stream to verify out-of-order reassembly.
  • Ordered‐set Manipulation: Replaces handshaking and flow control ordered‐sets to help validate robustness of a design.
  • Traffic Monitoring: Operates as a traffic monitor, collecting statistical data on user‐specified parameters. In this mode, data passes unchanged in both directions.
  • Menu‐Driven Interface: Allows easy set‐up of test Scenarios.

With respect to traffic modification, in the Link Layer you can modify ordered‐sets, CRC, scrambled data, and connection Events. You cannot modify clock skew management and signal integrity. InFusion consists of a hardware device that connects to the line under test and a Windows‐based software application used to create and download test scripts to the device. You also can use the software application to configure and control the device across an Ethernet or USB link. InFusion test scripts are called Scenarios. Scenarios determine how the hardware device monitors and modifies line traffic. In order to create and download Scenarios the Teledyne LeCroy Net Protocol Suite application must be used. For the InFusion connections, the device is connected between the PHYs of the originator and responder.

 

Fabric Exerciser™ – Phy Layer Capabilities
Speed Negotiation & Transmitter Training – Packet Generation

The Teledyne LeCroy SierraNet M648 Fabric Exerciser option will transform the protocol analyzer to a feature rich Fibre Channel traffic generator and link exerciser. Fabric Exerciser is fully capable of creating Speed Negotiation packets at 16/32Gb FC and 64Gb FC PAM4 for emulating physical layer instantiation conditions, either within specification parameters, or to generate out of spec error conditions. Fabric Exerciser may even be programmed to generate custom link speed negotiation packets for Extended Marker bit values in both NRZ and PAM4 links.

Fabric Exerciser can be used to create Transmitter Training signals for specification compliant, and for deviation from specification, to test the DUT receiver(s). Fabric Exerciser supports creation of a myriad of Training Frame Status and Control Field combinations and may be programmed for creating Differential Manchester encoding errors.

Fabric Exerciser – Link Services
Generate Basic and Extended LS frames

Once the physical layer negotiations are complete, Fabric Exerciser can generate a complete fabric and port login sequences to test response timing of the DUT during Basic and Extended Link service actions.

The Fabric Exerciser routines are programmable and predictable, offering a test generation solution ideal for creating and maintaining a repeatable test environment. No longer will validation and test routines be based on another vendors reference design, which may have its own inherent conformance or compliance issues.

Fabric Exerciser contains a host of preconfigured scripts for generating the basic Fibre Channel services. Each of the templates may be modified, saved, and reused, offering the engineering team the ability to create their own test arcs.

FC Generation Options

The Fabric Exerciser is an available option in the Net Protocol Suite software and supported in the SierraNet M648 platform for generation of 16/32/64GFC traffic. Customers may license 1 or 2 links of generation as needed, and use Fabric Exerciser in conjunction with the analysis capabilities for a complete picture of the link and devices under test.

The Fabric Exerciser function is an addon component of the Net Protocol Suite software utility and supports functions for:

  • Complete Line Rate 16GFC, 32GFC, and PAM4 64GFC traffic generation and manipulation
  • Generates Speed Negotiation & Transmitter Training packets
    • Generate custom link speed negotiation packets, including 64G Extended Markers
    • Generate Transmitter Training signals, both compliant and off spec to test DUT receiver(s)
    • Generate all possible Training Control and Status field combinations
  • Manchester Encoding Errors
    • Create encoding errors to stress test DUTs
    • Generate all possible Training Control and Status field combinations
  • Framed Data Generation with flexible patterns
  • Initiator and target emulation
  • PRBS
  • Corner Case conditions
  • Enable/Disable FEC capabilities
  • Create FEC errors
  • Integrate Fabric Exerciser with Rest API interface
  • Generate traffic for all layers of the Fibre Channel fabric