Field Notice: FN - 70390 - N9K-C9348GC-FXP Might Not Boot After Reload – EPLD Upgrade Recommended - Software Upgrade Recommended

Notice

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Revision History

Revision	Publish Date	Comments
1.0	20-Mar-19	Initial Release

Products Affected

Affected OS Type	Affected Software Product	Affected Release	Affected Release Number	Comments
NON-IOS	NX-OS System Software	7	7.0(3)I7(1), 7.0(3)I7(2), 7.0(3)I7(3), 7.0(3)I7(4), 7.0(3)I7(5)	The fix is to upgrade the EPLD of the system to the EPLD packaged with NX-OS releases 7.0(3)I7(5a), 9.2(2) and later.
NON-IOS	NX-OS System Software	9	9.2(1)	The fix is to upgrade the EPLD of the system to the EPLD packaged with NX-OS releases 7.0(3)I7(5a), 9.2(2) and later.
NON-IOS	APIC Software	3.0	3.0(1k), 3.0(2h), 3.0(2k), 3.0(2n)	The fix is to upgrade the EPLD of the system to the EPLD packaged with ACI releases 3.2(5d) or 4.1(1x)
NON-IOS	APIC Software	3.1	3.1(1i), 3.1(2m), 3.1(2o), 3.1(2p), 3.1(2q), 3.1(2s), 3.1(2t), 3.1(2u)	The fix is to upgrade the EPLD of the system to the EPLD packaged with ACI releases 3.2(5d) or 4.1(1x)
NON-IOS	APIC Software	3.2	3.2(1l), 3.2(1m), 3.2(2l), 3.2(2o), 3.2(3i), 3.2(3n), 3.2(3o), 3.2(3r), 3.2(3s), 3.2(4d), 3.2(4e)	The fix is to upgrade the EPLD of the system to the EPLD packaged with ACI releases 3.2(5d) or 4.1(1x)

Defect Information

Defect ID	Headline
CSCvm94301	N9K-C9348GC-FXP has no console access after software upgrade or CLI reload
CSCvn26568	Update BIOS and EPLD for ACI Leaf

Problem Description

The N9K-C9348GC-FXP switch might fail to boot after a reload or disruptive software upgrade. The console will be unresponsive and all LEDs will be off, except for the Power LEDs.

Background

This condition can only be triggered during a reload (not a hard power cycle) and does not impact a switch that is up and running. This is triggered by a firmware bug in the power supply unit (PSU) timing sequence and is addressed by an electronic programmable logic device (EPLD) software update.

Problem Symptom

The console will be unresponsive.

Workaround/Solution

In order to recover the system, complete one of these options:

• Plug out and reinsert the cable to power cycle the switch.
• Power off from the power distrubution unit (PDU) and power it back on.

The fix is to upgrade the EPLD of the system to the EPLD packaged with NX-OS release 7.0(3)I7(5a), 9.2(2), or later.

Application Centric Infrastructure (ACI)

The fix is to upgrade the ACI version to 3.2(5x), 4.1(1x) , or later.

Upgrade the Software

The fix for this issue is available as an EPLD firmware upgrade. An upgrade to the NX-OS alone is not sufficient. Cisco recommends for the customer to upgrade the NX-OS code and then upgrade the EPLD version.

See Recommended Cisco NX-OS Release for Cisco Nexus 9000 Series Switches and EPLD Installation Procedure for more information.

For ACI, EPLD upgrades are automatically completed with the ACI version upgrade.

How To Identify Affected Products

This affects N9K-C9348GC-FXP with IO FPGA less than 0x08.

In order to find the Product ID, enter the show mod | grep active command. An example is shown here.

switch# show mod | grep active

1    54   48x100/1G + 4x10G/25G + 2x40G/100G Et N9K-C9348GC-FXP       active *

In order to view the IO FPGA version, enter the slot 1 show hardware internal version command. An example is shown here.

switch# slot 1 show hardware internal version

-------------------------------------------------------------------

Name                     InstanceNum           Version        Date

-------------------------------------------------------------------

Homewood                         0              0x01

POE                              0              0x00

IO FPGA                          0              0x06       20170615

MI FPGA                          0              0x08       20170515

CPLD1                            0              0x01

CPLD2                            0              0x01

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email
• By telephone

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