IBM Support

Support list matrix for SFP and Twinax DAC cables - Converged Network Adapter

Troubleshooting


Problem

Link flapping, Light Emitting Diodes (LEDs) not illuminating, and other connectivity issues may occur when installing untested, unsupported Small Form-factor Pluggable (SFP) transceivers and Twinax/Direct Attached Copper (DAC) cables in Converged NetworkAdapters (CNA).

Resolving The Problem

Source

RETAIN tip: H203108

Symptom

Link flapping, Light Emitting Diodes (LEDs) not illuminating, and other connectivity issues may occur when installing untested, unsupported Small Form-factor Pluggable (SFP) transceivers and Twinax or Direct Attached Copper (DAC) cables in Converged Network Adapters (CNA).

Affected configurations

The system is configured with one or more of the following IBM Options:

  • Brocade 10 Gb CNA for IBM System x, Option part number 42C1820, replacement part number (CRU) 42C1822
  • Emulex 10 Gb Ethernet Integrated Virtual Fabric Adapter II for IBM System x, Option part number L1 49Y7940, replacement part number 49Y7942
  • Emulex 10 Gb Ethernet Integrated Virtual Fabric Adapter for IBM System x, replacement part number (CRU) 49Y4202
  • Emulex 10 Gb Ethernet Virtual Fabric Adapter II for IBM System x, Option part number 49Y7950, replacement part number (CRU) 49Y7952
  • Emulex 10 Gb Ethernet Virtual Fabric Adapter for IBM System x, Option part number 49Y4250, replacement part number (CRU) 49Y4252
  • QLogic 10 Gb CNA for IBM System x, Option part number 42C1800, replacement part number (CRU) 42C1802

This tip is not system specific.

This tip is not software specific.

Solution

To avoid or resolve these type of issues - install only supported SFPs and Twinax or DAC cables.

  • Users should contact their point of purchase if they are not in compliance with the supported hardware configurations.
  • A Customer Engineer (CE) or Service Support Representative (SSR) cannot use Field Replaceable Unit (FRU) stock to fix configuration issues due to unsupported equipment installed in user environments.

Additional Information

--------------------------
SFP+ SUPPORT LIST
--------------------------

System x adapters that support the QLogic 10 Gb SFP+ SR Optical Transceiver with FRU 49Y4218:

  • 42C1800 - QLogic 10 Gb Dual-Port CNA for IBM
  • 42C1820 - Brocade 10 Gb CNA for IBM System x
  • 49Y4200 - Emulex 10 Gb Dual-Port Ethernet Adapter for IBM

----

  • 49Y4250 - Emulex 10 Gb Virtual Fabric Adapter for IBM
  • 49Y7940 - Emulex 10 Gb Dual-port Ethernet Adapter II for
  • 49Y7950 - Emulex 10 Gb Ethernet Virtual Fabric Adapter II for IBM

The Emulex Adapters listed immediately previously can support all of the following SFPs:

  • 81Y1618 - Avago 1GB SFP SR Optical Transceiver
  • 44W2411
  • 44W4408
  • 46C3447 - IBM BNT SFP+ SR Optical Transceiver
  • 49Y4216 - Brocade 10 Gb SFP+ SR Optical Transceiver
  • 49Y4218 - QLogic 10 Gb SFP+ SR Optical Transceiver
  • 49Y8578 - IBM 10 Gb Ethernet Software (SW) SFP+ Transceiver
  • Avago AFBR-703SDZ-ELX
  • Cisco SFP-10G-SR
  • Finisar FTLX8571D3BCL-EM

Note: The last 3 SFP+ SR transceivers are non-IBM optics validated by Emulex for use with these adapters.

----------------------------------------------------
SFP+ DAC COPPER CABLES SUPPORT LIST
---------------------------------------------------

ACTIVE DAC or TWINAX

  • 42C1800 - QLogic 10 Gb Dual-Port CNA for IBM System x
  • 42C1820 - Brocade 10 Gb CNA for IBM System x
  • 49Y4200 - Emulex 10 Gb Dual-Port Ethernet Adapter for IBM System x
  • 49Y4250 - Emulex 10 Gb Virtual Fabric Adapter for IBM System x
  • 49Y7940 - Emulex 10 Gb Dual-Port Ethernet Adapter II for IBM System x
  • 49Y7950 - Emulex 10 Gb Ethernet Virtual Fabric Adapter II for IBM System x

All of the adapters listed immediately previously can support all of the following Active DAC cables:

  • 45W2398 - IBM Twinax Direct Attach Cable (DAC) - 1m
  • 45W2408 - IBM Twinax Direct Attach Cable (DAC) - 3m
  • 45W3039 - IBM Twinax Direct Attach Cable (DAC) - 5m
  • 46K6182 - Cable, 1 m Act 10 Gb Ethernet
  • 46K6183 - Cable, 3 m Act 10 Gb Ethernet
  • 46K6184 - Cable, 5 m Act 10 Gb Ethernet

PASSIVE DAC or TWINAX

  • 49Y4200 - Emulex 10 Gb Dual-port Ethernet Adapter for IBM System x
  • 49Y4250 - Emulex 10 Gb Virtual Fabric Adapter for IBM System x
  • 49Y7940 - Emulex 10 Gb Dual-Port Ethernet Adapter II for IBM System x
  • 49Y7950 - Emulex 10 Gb Ethernet Virtual Fabric Adapter II for IBM System x

All of the adapters listed immediately previously can support all of the following Passive DAC cables:

  • 59Y1932 - 0.5m Molex Direct Attach Copper SFP+ Cable
  • 59Y1936 - 1m Molex Direct Attach Copper SFP+ Cable
  • 59Y1940 - 3m Molex Direct Attach Copper SFP+ Cable
  • 90Y9427 - IBM 1M PASSIVE DAC-SFP+ CABLE
  • 90Y9430 - IBM 3M PASSIVE DAC-SFP+ CABLE
  • 90Y9433 - IBM 5M PASSIVE DAC-SFP+ CABLE

Additionally, Emulex has qualified the following adapters with the following cables:

  • 49Y4200 - Emulex 10 Gb Dual-port Ethernet Adapter for IBM System x
  • 49Y4250 - Emulex 10 Gb Virtual Fabric Adapter for IBM System x
  • 49Y7940 - Emulex 10 Gb Dual-Port Ethernet Adapter II for IBM System x
  • 49Y7950 - Emulex 10 Gb Ethernet Virtual Fabric Adapter II for IBM System x
  • 1 Meter Passive Twin-Ax Assembly
     
    Cisco SFP-H10 GB-CU1M
    Molex 74752-2101
    Tyco 1979753-2
  • 3 Meter Passive Twin-Ax Assembly
     
    Cisco SFP-H10 GB-CU3M
    Molex 74752-2301
  • 5 Meter Passive Twin-Ax Assembly
     
    Cisco SFP-H10 GB-CU5M
    Molex 74752-2501
    Tyco 1979143-6
  • 42C1800 - QLogic 10 Gb Dual-Port Converged Network Adapters (CNA) for IBM System x does not currently support any Passive DAC cables

Any Small Form-factor Pluggables (SFPs) or Direct Attached Copper (DAC) cables that are not supported must be replaced with a supported SFP and cable.

Document Location

Worldwide

Operating System

System x Hardware Options:Operating system independent / None

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Document Information

Modified date:
30 January 2019

UID

ibm1MIGR-5087884