Cisco Nexus 6004 | Fibre Tx and Rx Levels

[James Saunders]

Hi All,

On the Nexus 6004 series, does anybody know how to see the light levels for the optics.

I am using the command: show interface ethernet 2/5/4 transceiver details which outputs:

Ethernet2/5/4
    transceiver is present
    type is QSFP-40G-CSR4
    name is CISCO
    part number is AFBR-79EEPZ-CS2
    revision is 02
    serial number is XXXXXXXX
    nominal bitrate is 10300 MBit/sec
    Link length supported for 50/125um OM3 fiber is 300 m
    Link length supported for 50/125um OM2 fiber is 82 m
    cisco id is --
    cisco extended id number is 16

           SFP Detail Diagnostics Information (internal calibration)
  ----------------------------------------------------------------------------
                Current              Alarms                  Warnings
                Measurement     High        Low         High          Low
  ----------------------------------------------------------------------------
  Temperature   47.63 C        75.00 C     -5.00 C     70.00 C        0.00 C
  Voltage        3.32 V         3.63 V      2.97 V      3.46 V        3.09 V
  Current        0.00 mA        0.00 mA     0.00 mA     0.00 mA       0.00 mA
  Tx Power        N/A            N/A         N/A         N/A           N/A
  Rx Power        N/A            N/A         N/A         N/A           N/A
  ----------------------------------------------------------------------------
  Note: ++  high-alarm; +  high-warning; --  low-alarm; -  low-warning

Is it a case that the SFP's in this instance do not support the light level information? the controller, optics or wdm commands are not available on the Nexus.

Thanks all for your support.

[Marvin Rhoads]

Per the Cisco DOM Compatibility matrix, the QSFP-40G-CSR4 V02 is DOM-compatible and should thus show the power levels.

Can you tell me what NX-OS release you are running?

You might have to open a TAC case to see why the Tx and Rx levels aren't reporting properly. 

[James Saunders]

Hi Marvin,

The System version: 6.0(2)N1(2)
 

Software
  BIOS:      version 2.6.0
  loader:    version N/A
  kickstart: version 6.0(2)N2(2)
  system:    version 6.0(2)N2(2)
  Power Sequencer Firmware:
             Module 0: version v5.0
             Module 1: version v2.0
             Module 2: version v2.0
             Module 3: version v2.0
             Module 4: version v2.0
  Fabric Power Sequencer Firmware: Module 0: version v3.0
  Microcontroller Firmware:        version v1.1.0.3
  QSFP Microcontroller Firmware:
             Module 1: v1.3.0.0
             Module 2: v1.3.0.0
             Module 3: v1.3.0.0
             Module 4: v1.3.0.0
 

[Marvin Rhoads]

That is an early release (March 2013) and Cisco's current recommendation is 7.0(5)N1(1) (reference).

I couldn't find a published bug specific to DOM; but the TAC would be able to confirm via a search of the internal database.

[James Saunders]

OK, I shall proceed down this route as an IOS upgrade is not an option for us at the moment. Thanks very much for your help Marvin