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Cisco Bug: CSCuo51846 - N7K: 3rd party SFP-10G-SR reported as "Unsupported transceiver"

Last Modified

Apr 06, 2020

Products (8)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases

6.2(8)

Description (partial)

Symptom:
3rd-party SFP-10G-SR reported as "Unsupported transceiver":
ETHPORT-3-IF_UNSUPPORTED_TRANSCEIVER Transceiver on interface Ethernet2/1 is not supported

To verify if its the same issue
module-7# sh hard int transceiver ins 0 sprom raw 

+-------------------------------------------------------------------------------
| Get sprom/dom data for XCVR_USD Driver

SPROM in raw format:
-------------------

Comment                                Addr   Value
-------                                ----   -----
Identifier                                0     03
Ext. Identifier                           1     04
Connector Type                            2     07
10G Ethernet Compliance Code              3     00
ESCON/SONET Compliance Code               4     00 00
Ethernet Compliance Code                  6     00
Transceiver (Fibre Channel)               7     40 >>>>> Having 7,8 and 9th bytes programmed with any non-zero number will result in this bug.
Transceiver (Fibre Channel)               8     40
Transceiver (Fibre Channel)               9     0c
Transceiver (Fibre Channel)              10     80

Conditions:
This is observed on a Nexus 7000 or 7700 port running a 6.2(8) release.Its not seen in any other releases
before 6.2.8 . Its fixed in 6.2.10
It is applicable for all LCs and only affects some of the 3rd party transceivers.
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Bug Details Include

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  • Status
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