IXIA K400 QSFP-DD Load Modules

This chapter provides details about K400 QSFP-DD family of load modules and their specifications and features.

K400 QSFP-DD is a 1-port 400GE load module capable of 200GE, 100GE and 50GE fan-outs. This load module has a 50 Gbps PAM-4 electrical interface and validates performance, scalability and interoperability. It provides FEC error injection, PCS/Tx/Rx testing, and layer1 BERT testing with full line-rate layer 2-3 Tx, Rx, and capture capabilities. This load module accelerates development of IEEE 802.3bs-compliant 400GE networking systems.

These load modules are available in the following different models:

The following options are available for these models:

All the models enable full line-rate traffic generation transmit, receive, and capture functionality from 64B to 16,000B frame lengths. This facilitates stress testing, hardware/ASIC bring-up, optics and cable qualification, interoperability, and functional test and Layer 2/3 routing protocol emulation as required.

Key Features

The key features of QSPF-DD load module are as follows:

Load Modules

The K400 QSFP-DD family consists of the following models on a single slot card:

The load modules are described as follows:

QSFP-DD-400GE

QSFP-DD-400GE is a 1-port full-featured load module. It has 1-slot with the QSFP-DD physical interface and supports enterprise and data center switch and router testing. It provides L2-3 support and is compatible with the XGS12-HSL rack mount chassis (940-0016) and 2-slot high performance chassis XGS2-HSL chassis (940-0014).

The QSFP-DD-400GE load module is shown in the following figure:

Figure: K400 Module-QSFP-DD-400GE

QSFP-DD-R400GE

QSFP-DD-R400GE is a 1-port 400 Gigabit Ethernet reduced load module that scales down the L2-3 feature set and L2-3 networking protocol scaling, while increasing affordability. It has 1-slot with the QSFP-DD physical interface and supports hardware, ASIC, cable/optics qualification, and interoperability testing. It provides L2-3 support and reduced protocol emulation scale and is compatible with the XGS12-HSL rack mount chassis (940-0016) and 2-slot high performance chassis XGS2-HSL chassis (940-0014).

The QSFP-DD-R400GE load module is shown in the following figure:

Figure: K400 Module-QSFP-DD-R400GE

Fan-out options for QSFP-DD

The Fan-out options for QSFP-DD are available in two forms:

1x200GE/2x100GE/4x50GE factory installed

The 200GE/100GE/50GE Fan-Out FACTORY INSTALLED option for the QSFP-DD load module enables 1x200GE/2x100GE/4x50GE capability on the single port of the module. This is supported on QSFP-DD-400GE (944-1152) and the QSFP-DD-R400GE (944-1153) 1-port load modules.

Note: The factory installed option is required for new purchases to enable 200GE, 100GE and 50GE speeds on the QSFP-DD-400GE or QSFP-DD-R400GE load modules.

1x200GE/2x100GE/4x50GE field upgrade

The 200GE/100GE/50GE Fan-Out FIELD UPGRADE option for the QSFP-DD load module enables 1x200GE/2x100GE/4x50GE capability on the single port of the module. This is supported on QSFP-DD-400GE (944-1152) and the QSFP-DD-R400GE (944-1153) 1-port load modules.

Note: The field upgrade option is required on field upgrade purchases to enable 200GE, 100GE and 50GE speeds on the QSFP-DD-400GE or QSFP-DD-R400GE load modules. Please provide the serial number of the desired load module at the time of placement of order, to install the option .

Link Behavior of the 50GE Fan-Out mode

When a QSFP-DD or QSFP56 transceiver is connected to the load module, the 4x50GE speed mode is not fully independent.
The first two ports of 50GE in the GUI are sourced by the clock recovered from the first 50GE port. Therefore, if the DUT connected to the first port is disabled, no clock can be recovered and both of the local 50GE ports shows link down. This indicates that the second 50GE port has a dependency on the first port.
The same logic holds for the third and fourth port of the 50GE fan-out mode.

Part Numbers

Part Numbers for QSFP-DD Load Module and Supported Adapters are provided in the following table.

Part Numbers for QSFP-DD Modules

Model Number

Part Number

Description

QSFP-DD-400GE

944-1152

  • 1-port of 400GE with the native QSFP-DD physical interface
  • Full-featured model
  • Capable of 200/100/50GE fan-outs

944-1153

  • 1-port of 400GE with the native QSFP-DD physical interface
  • Reduced-featured model
  • Capable of 200/100/50GE fan-outs

UPG-QSFP-DD-R400GE

905-1032

FIELD UPGRADE option that upgrades the reduced performance QSFP-DD-R400GE 1-port, 1-slot, L2-3 load module to have the following:

  • an increased number of transmit streams
  • higher L23 IxNetwork protocol emulation of the QSFP-DD-400GE full feature, load module (944-1152) model
  • Capable of 200/100/50GE fan-outs

QSFP-DD-400GE+200G+100G+50G

905-1023

  • 200GE/100GE/50GE Fan-out FACTORY INSTALLED option
  • Enables the following speeds on QSFP-400GE 1-port load module:
    • 1x200GE

    • 2x100GE
    • 4x50GE

905-1024

  • 200GE/100GE/50GE Fan-out FIELD UPGRADE option
  • Enables the following speeds on QSFP-400GE 1-port load module:
    • 1x200GE

    • 2x100GE
    • 4x50GE

 

Specifications

The load module specifications are contained in the following table.

QSFP-DD Load Module Specifications

Feature

QSFP-DD-400GE FULL FEATURE

QSFP-DD-R400GE REDUCED FEATURE

Hardware Load Module Specifications

Slot / Number of Ports

  • 1-slot, 1-port 400GE
  • 1 port of 200GE
  • 2 ports of 100GE
  • 4 ports of 50GE

Physical Interface

Native QSFP28 DD physical port

Supported Port Speeds

  • 400GE/port: 400GE-capable fiber and passive copper cable media
  • 200/100/50GE port capable with a purchasable option

CPU and Memory

Multicore processor with 4GB of CPU memory per port

IEEE Interface Protocols

  • IEEE P802.3bs 200GE & 400GE, 400GBASE-R
  • IEEE P802.3cd 50 Gb/s, 100 Gb/s, and 200 Gb/s Ethernet

Advanced Layer1 support

  • Pre- and post-FEC statistics: Comprehensive per-port and per-lane statistics
  • FEC error injection
  • PCS lanes Tx and Rx test and statistics
  • Classical Layer 1 BERT test and statistics

Transceiver Support

Capable of support for 400GBASE-DR8, 400GBASE-FR8 and 400GBASE-LR8 when they are available in the QSFP-DD form factor. Other configurations may be supported, consult factory.

Cable Media

400GBASE-CR8, passive, copper Direct Attached Cable (DAC) up to 3 meters in length.

Load Module Dimensions

  • 16.4” (L) x 1.3” (W) x 12.0” (H)
  • 417mm (L) x 33mm (W) x 305mm (H)

Load Module Weights

  • Module only: 11.8 lbs. (5.35 kg)
  • Shipping: 18.6 lbs. (8.44 kg)

Temperature

  • Operating: 41°F to 95°F (5°C to 35°C)
  • Storage: 41°F to 122°F (5°C to 50°C)

Humidity

  • Operating: 0% to 85%, non-condensing
  • Storage: 0% to 85%, non-condensing

Chassis Capacity: Maximum Number of Cards and Ports per Chassis Model

XGS12-HSL Chassis (940-0016)

12 load modules:

  • Rackmount chassis
  • 12-ports of 400GE/200GE
  • 24-ports of 100GE
  • 48-ports of 50GE

XGS2-HSL Chassis (940-0014)

2 load modules:

  • Rackmount chassis
  • 2-ports of 400GE/200GE
  • 4-ports of 100GE
  • 8-ports of 50GE
XGS12-SDL Chassis (940-0015)

12 load modules:

  • 12-slot rackmount chassis
  • 12-ports of 400GE/200GE

  • 24-ports of 100GE
  • 48-ports of 50GE
XGS2-SDL Chassis (940-0013)

2 load modules:

  • 2-slot rackmount chassis
  • 2-ports of 400GE/200GE
  • 4-ports of 100GE
  • 8-ports of 50GE

Transmit Feature Specifications

Transmit Engine

Wire-speed packet generation with timestamps, sequence numbers, data integrity, and packet group signatures

Max. Streams per Port

  • 400GE: 128
  • 200GE: 128
  • 100GE: 32
  • 50GE: 16
  • 400GE: 32
  • 200GE: 32
  • 100GE: 16
  • 50GE: 8

Max. Streams per Port in Data Center Ethernet

  • 400GE: 128
  • 200GE: 128
  • 100GE: 32
  • 50GE: 16
  • 400GE: 32
  • 200GE: 32
  • 100GE: 16
  • 50GE: 8

Inter-burst gap: min-max

10: 6400ns-429s in 800ns steps100: 640ns-42.9s in 80ns steps1000: 64ns-16.7ms in 16ns steps

Advanced Scheduler:

10: 0.419s

100: 0.0419s

1000: 0.0167s

Stream Controls

  • Rate and frame size change on the fly
  • Advanced stream scheduler

Minimum Frame Size

At line rate

  • 400GE: 60 Bytes
  • 200GE: 60 Bytes

  • 100GE: 64 Bytes

  • 50GE: 64 Bytes

At less than full line rate

  • 56 Bytes for all speed modes

Maximum Frame Size

  • 400GE: 16000 Bytes
  • 200GE: 16000 Bytes
  • 100GE: 14000 Bytes
  • 50GE: 14000 Bytes

Frame Length Controls

Fixed, increment by user-defined step, weighted pairs (up to 16K), uniform, repeatable random, IMIX, and Quad Gaussian

User defined fields (UDF)

Fixed, increment or decrement by user-defined step, sequence, value list, and random configurations; up to 10, 32-bit-wide UDFs are available

Value Lists (max.)

  • 400GE: 1M / UDF
  • 200GE: 1M / UDF
  • 100GE: 1M / UDF
  • 50GE: 512K / UDF

Sequence (max.)

  • 400GE: 32K / UDF
  • 200GE: 32K / UDF
  • 100GE: 8K / UDF
  • 50GE: 2K / UDF

Error Generation

  • FEC symbol error-injection allows the user to inject FEC symbol errors using various weighted methods to achieve specific error rates
  • Generate good CRC or force bad CRC, undersize and oversize standard Ethernet frame lengths, and bad checksum

Physical Coding Sublayer

  • PCS lane skew injection
  • PCS lane re-mapping
  • PCS lane marker error injection
  • PCS bit error generation

L1 Bert

Classical, line rate, un-encapsulated transmit and receive of various PRBS patterns, controls over the patterns that help to produce BER statistics

Hardware Checksum Generation

Checksum generation for IPv4, IP over IP, ICMP/GRE/TCP/UDP, L2TP, GTP, and multilayer checksum. Support for protocol verification for control plane traffic

Link Fault Signaling

Reports, no fault, remote fault, and local fault port statistics; generate local and remote faults with controls for the number of faults and order of faults, plus the ability to select the option to have the transmit port ignore link faults from a remote link partner

Latency Measurement Resolution

  • 400GE: 0.625 nanoseconds

  • 200GE: 1.25 nanoseconds

  • 100GE: 2.5 nanoseconds

  • 50GE: 2.5 nanoseconds

Intrinsic Latency Compensation

Removes inherent latency error from the 400GE port electronics

Transmit/Receive loopback

Internal loopback support

Receive Feature Specifications

 

Receive Engine

Wire-speed packet filtering, capturing, real-time latency and inter-arrival time for each packet group, with data integrity, sequence and advanced sequence checking capability

Trackable Receive Flows per Port

Maximum PGID without SQ Checking (No Tx/Rx Sync)

  • 400G/200G: 32K
  • 100G: 32k Min / 8k Full
  • 50G: 16k Min / 8k Full

Maximum PGID with SQ Checking (No Tx/Rx Sync)

  • 400G/200G: 32K
  • 100G: 32k Min / 8k Full
  • 50G: 16k Min / 8k Full

Maximum PGID without SQ Checking (With Tx/Rx Sync)

  • 400G/200G: 32K
  • 100G: 32k Min / 8k Full
  • 50G: 16k Min / 8k Full

Maximum PGID with SQ Checking (With Tx/Rx Sync)

  • 400G/200G: 32K
  • 100G: 32k Min / 8k Full
  • 50G: 16k Min / 8k Full
Limited Stats Capability

Supports a higher number of PGID/flows, but each with reduced measurements

  • Latency stats are Average only
    • Min/Max latency are not included
  • Basic Sequence check is a flag (yes/no) to indicate if a sequence error occurred during transmission
  • There are no small/big/reverse sequence error counts

Minimum Frame Size

At line rate

  • 400GE: 60 Bytes
  • 200GE: 60 Bytes

  • 100GE: 64 Bytes

  • 50GE: 64 Bytes

Filters (User-Defined Statistics, UDS)

2 SA/DA pattern matchers, 2x16-byte user-definable patterns with offsets capability for start of: frame, IP, or protocol. Up to 6 UDS counters are available.

Hardware Capture Buffer

  • 400GE: 256KB
  • 200GE: 256KB
  • 100GE: 1MB
  • 50GE: 1MB

Standard Statistics and Rates

Link state, line speed, frames sent, valid frames received, bytes sent/received, fragments, undersize, oversize, CRC errors, 6 user-defined stats, capture trigger (UDS 3), capture filter (UDS 4), data integrity frames, data integrity errors, sequence and advanced sequence checking frames, sequence checking errors, ARP, and PING requests and replies.

FEC Statistics

  • FEC port statistics: Total Bit Errors, Max Corrected Symbols, Corrected Codewords, Total Codewords, Uncorrectable Codewords, Frame Loss Ratio, Pre-FEC Bit Error Rate, and Codeword error distribution analysis
  • FEC per lane statistics: FEC Symbol Error Count, Corrected Bits Count, Symbol Error Rate, Corrected Bit Rate

Latency / Jitter Measurements

Cut-through, store & forward, forwarding delay, up to 8 time bins latency/jitter/DV, MEF jitter, and inter-arrival time.

Receive-side PCS Lanes Port Statistics Counters

PCS: Sync Errors, Illegal Codes, Remote Faults, Local Faults, Illegal Ordered Set, Illegal Idle, Illegal SOF, PCS Out Of Order SOF, PCS Out Of Order EOF, PCS Out Of Order Data and PCS Out Of Order Ordered Set..

Physical Coding Sublayer (PCS) Receive-Side Statistics and Indicators

IEEE 802.3bs-compliant PCS transmit and receive capabilities include:

Receive Per PCS lane receive lanes statistics; Physical Lane assignments, Lane Marker Lock, Lane Market Map, Relative Lane Skew, Lane Marker Error Count

Layer 2-3 Protocol Support

Routing and Switching

BGP-4, BGP+, OSPFv2/v3, ISISv4/v6, EIGRP, EIGRPv6, RIP, RIPng, BFD, IGMPv1/v2/v3, MLDv1/v2, PIM-SM/SSM, PIM-BSR, STP/RSTP, MSTP, PVST+/RPVST+, Link Aggregation (LACP), LLDP

Complete protocol coverage with reduced session scale: 100 routing & switching sessions 2000 host/access sessions

Software Defined Network

VXLAN, EVPN VXLAN, OpenFlow, ISIS Segment Routing, OSPF Segment Routing, BGP Segment Routing, BGP Link State (BGP-LS), PCEP, OVSDB

Complete protocol coverage with reduced session scale:

  • 100 routing & switching sessions
  • 2000 host/access sessions

Basic

IPv4/IPv6, DHCP, PPPoE, L2TP, IGMP, MLD, 802.1x

MPLS

RSVP-TE, RSVP-TE P2MP, LDP/LDPv6, mLDP, PWE, VPLS-LDP, VPLS-BGP, BGP auto-discovery with LDP FEC 129 support, L3 MPLS VPN/6VPE, 6PE, BGP RT-Constraint, BGP Labeled BGP Labeled unicast, L3 Inter-AS VPN Options (A, B, C), MPLS-TP, MPLS OAM, Multicast VPN (GRE, mLDP, RSVP-TE P2MP), EVPN, PBB-EVPN

Complete protocol coverage with reduced session scale:

  • 100 routing & switching sessions
  • 2000 host/access sessions

Broadband and Authentication

PPPoX, DHCPv4, DHCPv6, L2TPv2, Radius attributes for L2TP, ANCP, IPv6 Autoconfiguration (SLAAC), IGMPv1/v2/v3, MLDv1/v2, 802.1x

Complete protocol coverage with reduced session scale:

  • 100 routing & switching sessions
  • 2000 host/access sessions

Industrial Ethernet

Link OAM IEEE 802.3ah, CFM IEEE 802.1ag, Service OAM ITUT-Y.1731, PBT/PBB-TE, Sync-E ESMC, ELMI

Complete protocol coverage with reduced session scale:

  • 100 routing & switching sessions
  • 2000 host/access sessions

Data Center Ethernet

Priority Flow Control IEEE 802.1Qbb (PFC), LLDP/DCBX

Complete protocol coverage with reduced session scale:

  • 100 routing & switching sessions
  • 2000 host/access sessions

Application Support

The Ixia application support QSFP-DD load modules is provided in the following table:

QSFP-DD-400GE / QSFP-DD-R400GE Application Support

Application Support

IxNetwork

Wire-rate traffic generation with service modeling that builds realistic, dynamically controllable data-plane traffic. IxNetwork offers the industry's best test solution for functional and performance testing by using comprehensive emulation for routing, switching, MPLS, IP multicast, broadband, authentication, Carrier Ethernet, and data center Ethernet protocols.

IxExplorer

Layer 1-3 wire-speed traffic generation, capture, and analysis with Forward Error Correction and error injection with statistics, PCS Lanes Tx/Rx with statistics, and Layer 1 BERT test and reporting capability.

Tcl API

Allows custom user script development for layer 1-3 testing.

Transceiver Support

The transceiver supported by QSFP-DD load modules is provided in the following table:

QSFP-DD Transceiver Support

Model

Description

QSFP-DD-1M-CBL

QSFP-DD-to-QSFP-DD 400GE 400GBASE-R passive copper, Direct Attach Cable (DAC), point-to-point cable, 1-meter length. This cable is compatible with the following load modules:

  • QSFP-DD-400GE 1-port, full performance 400GE
  • QSFP-DD-R400GE 1-port, reduced-featured 400GE
  • QSFP-DD-400GE+200G+100G+50G 1-port, full performance fan-out speed modes

  • QSFP-DD-R400GE+200G+100G+50G 1-port, reduced-featured fan-out speed modes

QSFP-DD-2M-CBL

QSFP-DD-to-QSFP-DD 400GE 400GBASE-R passive copper, Direct Attach Cable (DAC), point-to-point cable, 2-meter length. This cable is compatible with the following load modules:

  • QSFP-DD-400GE 1-port, full performance 400GE
  • QSFP-DD-R400GE 1-port, reduced-featured 400GE
  • QSFP-DD-400GE+200G+100G+50G 1-port, full performance fan-out speed modes

  • QSFP-DD-R400GE+200G+100G+50G 1-port, reduced-featured fan-out speed modes

QSFP-DD-5M-CBL

QSFP-DD-to-QSFP-DD 400GE 400GBASE-R passive copper, Direct Attach Cable (DAC), point-to-point cable, 5-meter length. This cable is compatible with the following load modules:

  • QSFP-DD-400GE 1-port, full performance 400GE
  • QSFP-DD-R400GE 1-port, reduced-featured 400GE
  • QSFP-DD-400GE+200G+100G+50G 1-port, full performance fan-out speed modes

  • QSFP-DD-R400GE+200G+100G+50G 1-port, reduced-featured fan-out speed modes

Mechanical Specifications

Front Panel

The front panel of QSFP-DD load modules is shown in the following figure:

Figure: Front panel of QSFP-DD

LED Panel

The LED panel specifications for QSFP-DD are provided in the following table.

LED panel Specifications for QSFP-DD Load Module

MODE LED

TX STATUS

RX STATUS

FEC

Solid Red - Card fault

Solid Red - Link down

Blinking Red - RX active with errors

Blinking Red - Uncorrectable FEC errors

Solid Purple - 400GE speed mode

Solid Green - Link up

Blinking Green - RX active with no errors received

Blinking Green - Corrrectable FEC errors

Solid Cyan - 200GE speed mode

Blinking Green - TX is active on at least one fan-out port

Off - Port is inactive

Solid Green - No errors

Solid White - 50GE speed mode

Solid Yellow - At least one link (but not all) is up (2x100GE, 4x50GE)

 

Off - FEC not enabled

Off - 100GE speed mode