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Cisco Nexus 9000 Series FPGA/EPLD Upgrade Release Notes, Release 6.1(2)I2(2a)

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Table of Contents

Cisco Nexus 9000 Series FPGA/EPLD Upgrade Release Notes, Release 6.1(2)I2(2a)

Introduction

Deciding When to Upgrade EPLDs

Switch Requirements

EPLDs Available for Releases 6.1(2)I2(1) through 6.1(2)I2(2a)

Determining Whether to Upgrade EPLD Images

Downloading the EPLD Images

Installation Guidelines

Upgrading the EPLD Images

Verifying the EPLD Upgrades

Displaying the Status of EPLD Upgrades

Limitations

Related Documentation

Obtaining Documentation and Submitting a Service Request

Cisco Nexus 9000 Series FPGA/EPLD Upgrade Release Notes, Release 6.1(2)I2(2a)

Release Date: June 18, 2014

Table 1 shows the online history changes for this document.

Table 1 Online History Change

Date
Description

March 17, 2014

Created for Cisco NX-OS Release 6.1(2)I2(1).

May 7, 2014

Updated for Cisco NX-OS Release 6.1(2)I2(2).

May 14, 2014

Updated the title for all 6.1(2)I2 releases.

June 18, 2014

Updated for Cisco NX-OS Release 6.1(2)I2(2a)

This document includes the following sections:

Introduction

The Cisco Nexus 9000 Series switches, which include the Cisco Nexus 93 xxx and 95 xx switches, contain several programmable logical devices (PLDs) that provide hardware functionalities in all modules. Cisco provides electronic programmable logic device (EPLD) image upgrades to enhance hardware functionality or to resolve known issues. PLDs include electronic programmable logic devices (EPLDs), field programmable gate arrays (FPGAs), and complex programmable logic devices (CPLDs), but they do not include ASICs. In this document, the term EPLD is used for FPGA and CPLDs.

The advantage of having EPLDs for some module functions is that when you need to upgrade those functions, you just upgrade their software images instead of replacing their hardware.


Note EPLD image upgrades for an I/O module disrupt the traffic going through the module because the module must power down briefly during the upgrade. The system performs EPLD upgrades on one module at a time, so at any one time the upgrade disrupts only the traffic going through one module.


Cisco provides the latest EPLD images with each release. Typically, these images are the same as provided in earlier releases but occasionally some of these images are updated. To determine if there are any updated images, see Table 2. These EPLD image updates are not mandatory unless otherwise specified. The EPLD image upgrades are independent from the Cisco NX-OS In Service Software Upgrade (ISSU) process, which upgrades the system and kickstart images with no impact on the network environment.

When Cisco makes an EPLD image upgrade available, these release notes announce their availability, and you can download them from http://www.cisco.com .

Deciding When to Upgrade EPLDs

When new EPLD images are available, the upgrades are always recommended if your network environment allows for a maintenance period in which some level of traffic disruption is acceptable. If such a disruption is not acceptable at this time, then you might consider postponing the upgrade until a better time.


Note The EPLD upgrade operation is a disruptive operation. You should execute this operation only at a programmed maintenance time. The system/kickstart ISSU upgrade is a nondisruptive upgrade.



Note Do not perform an EPLD upgrade during an ISSU system/kickstart upgrade.


Switch Requirements

The Cisco Nexus 9000 Series switch must be running the Cisco NX-OS operating system and include the following hardware:

  • Supervisor modules—one or two, each with at least 200 MB of available bootflash memory (Cisco Nexus 9504, 9508, and 9516 only)
  • System controller modules—one or two (Cisco Nexus 9504, 9508, and 9516 only)
  • I/O modules—one to eight (Cisco Nexus 9504, 9508, and 9516 only)
  • Fabric modules—three or six (Cisco Nexus 9504, 9508, and 9516 only)
  • Fan tray modules (three for Cisco Nexus 9396PX, 93128TX, 9504, 9508, and 9516)
  • Uplink module (Cisco Nexus 93128 and 9396 only)

You must be able to access the switch through a console, SSH, or Telnet.

You must have administrator privileges to work with the Cisco Nexus 9000 Series switch.

EPLDs Available for Releases 6.1(2)I2(1) through 6.1(2)I2(2a)

Each EPLD image that you can download from http://www.cisco.com is a bundle of EPLD upgrades. To see the updated EPLD versions for the current release, see Table 2 .

Table 2 EPLD Upgrades for Cisco NX-OS Releases

Switch Type
Module Type
Module
Release
EPLD Device
Versions
6.1(2)I2(1)
6.1(2)I2(2)
6.1(2)I2(2a)

Cisco Nexus 3000 Series Switches running NX-OS software supporting the Cisco Nexus 9000 Series switches

Cisco Nexus 3164Q Switch (N3K-C3164Q-40GE)

MI FPGA

All

N.A.

N.A.1

0x18

IO FPGA

All

N.A.

N.A.

0x04

Cisco Nexus 93 xxx switches and uplink modules

Cisco Nexus 93128TX switch (N9K-C93128TX)

MI FPGA

All

0x09

IO FPGA

All

0x07

Cisco Nexus 9396PX switch (N9K-C9396PX)

MI FPGA

All

0x13

0x14

IO FPGA

All

0x13

12-port optical uplink module (N9K-M12PK)

MI FPGA ML

All

0x15

Cisco Nexus 95 xx switch modules

Supervisor module (N9K-SUP-A)

IO FPGA

All

0x19

System controller module (N9K-SC-A)

IO FPGA

All

0x16

0x16

0x17

36-port 40-Gbps QSFP+ aggregation I/O module (N9K-X9636PQ)           

MI FPGA

All

0x09

0x12

IO FPGA

All

0x15

36-port 40-Gigabit QSFP+ (N9K-X9536PQ)

MI FPGA

All

N.A.

N.A.

0x05

IO FPGA

All

N.A.

N.A.

0x10

48-port 1-/10-Gbps SFP+ plus 4-port QSFP+ I/O module (N9K-X9564PX)

MI FPGA

All

0x07

0x10

IO FPGA

All

0x10

48-port 1-/10-Gbps BASE-T plus 4-port QSFP+ I/O module (N9K-X9564TX)

MI FPGA

All

0x04

IO FPGA

All

0x08

48-1-/10-GBASE-T plus 4-port 40-Gibit QSFP+ I/O module (N9K-X9464TX)

MI FPGA

All

N.A.

N.A.

0x4

1.N.A. (not applicable) EPLD image was not available for this release.


Note To list the EPLDs running on your switch, use the show version module module_number epld command. If any of the versions that you list are older than what is listed in Table 2, we recommend that you update the EPLDs.


Determining Whether to Upgrade EPLD Images

You can use the show install impact epld bootflash: command to determine whether the EPLDs can be upgraded for all the modules or for specific modules on a switch. This command indicates the current EPLD images, new EPLD images, and whether the upgrades would be disruptive to switch operations.

The following example shows the results of using the show install impact epld bootflash: command on a Cisco Nexus 93 xxx switch. In this case, the MI FPGA and IO FPGA EPLD images can be upgraded for the switch supervisor (slot 1) and the MI FPGA2 EPLD image can be upgraded for the supervisor in the uplink module (slot 2). Both upgrades are disruptive.

switch# show install all impact epld bootflash:n9000-epld.6.1.2.I2.2a.img
Compatibility check:
Module        Type         Upgradable        Impact   Reason
------  -----------------  ----------    ----------   ------
     1            SUP           Yes       disruptive   Module Upgradable
     2      Expansion           Yes       disruptive   Module Upgradable
Retrieving EPLD versions... Please wait.
Images will be upgraded according to following table:
Module  Type           EPLD      Running-Version   New-Version  Upg-Required
------  ----  -------------      ---------------   -----------  ------------
     1   SUP  MI FPGA                   0x10        0x12            Yes
     1   SUP  IO FPGA                   0x12        0x13            Yes
     2   SUP  MI FPGA2                  0x12        0x15            Yes
switch#
 

The following example shows the results of using the show install impact epld bootflash: command on a Cisco Nexus 95 xx switch.

switch# show install all impact epld bootflash:n9000-epld.6.1.2.I2.2a.img
Compatibility check:
Module        Type         Upgradable        Impact   Reason
------  -----------------  ----------    ----------   ------
     2             LC           Yes       disruptive   Module Upgradable
     6             LC            No             none   Module is not Online
     7             LC           Yes       disruptive   Module Upgradable
    22             FM           Yes       disruptive   Module Upgradable
    23             FM           Yes       disruptive   Module Upgradable
    24             FM           Yes       disruptive   Module Upgradable
    25             FM           Yes       disruptive   Module Upgradable
    26             FM           Yes       disruptive   Module Upgradable
    27            SUP           Yes       disruptive   Module Upgradable
    29             SC           Yes       disruptive   Module Upgradable
Retrieving EPLD versions... Please wait.
Images will be upgraded according to following table:
Module  Type           EPLD      Running-Version   New-Version  Upg-Required
------  ----  -------------      ---------------   -----------  ------------
     2    LC  MI FPGA                   0x06        0x07            Yes
     2    LC  IO FPGA                   0x10        0x10             No
     7    LC  MI FPGA                   0x09        0x09             No
     7    LC  IO FPGA                   0x14        0x15            Yes
    22    FM  IO FPGA                   0x17        0x18            Yes
    23    FM  IO FPGA                   0x18        0x18             No
    24    FM  IO FPGA                   0x17        0x18            Yes
    25    FM  IO FPGA                   0x18        0x18             No
    26    FM  IO FPGA                   0x17        0x18            Yes
    27   SUP  IO FPGA                   0x19        0x19             No
    29    SC  IO FPGA                   0x16        0x16             No
 

Downloading the EPLD Images

Before you can prepare the EPLD images for installation, you must download them to the FTP or management server.

To download the EPLD images, follow these steps:


Step 1 From a browser, go to the following URL:

http://www.cisco.com

The browser will display the Cisco website.

Step 2 From the Products & Services tab, choose Switches .

The Switches page opens.

Step 3 In the Data Center area, click the arrow next to View Products.

The page lists the Data Center products.

Step 4 Click Nexus 9000 .

The Cisco Nexus 9000 Series Switches page opens.

Step 5 In the Support area, click Download Software .

The Downloads page opens and lists the Data Center switches.

Step 6 Choose a Cisco Nexus 9000 Series switch from the list under Data Center Switches > Cisco Nexus 9000 Series Switches .

The Log In page opens.

Step 7 If you are an existing user, enter your username in the User Name field and your password in the Password field. If you are a new user, click Register Now and provide the required information before returning to the Log In page and logging in with your new username.

The Downloads page lists the software types that can be downloaded for the switch that you specified.

Step 8 Click NX-OS EPLD Updates .

The Downloads page lists software releases that you can download.

Step 9 Choose Latest Releases > 6.1(2)I2(2a) .

The Downloads page displays image information, including a link to the downloadable Tar file, to the right of the releases.

Step 10 Click the link for the Tar file.

The Downloads page displays a Download button and lists information for the Tar file.

Step 11 Click Download .

The Supporting Documents page opens to display the rules for downloading the software.

Step 12 Read the rules and click Agree .

A File Download dialog box opens to ask if you want to open or save the images file.

Step 13 Click Save .

The Save As dialog box appears.

Step 14 Indicate where to save the Tar file and click Save .

The Tar file saves to the location that you specified.


 

You are ready to prepare the EPLD images for Installation (see the “.” section).

Installation Guidelines

You can upgrade EPLDs using CLI commands on the Cisco Nexus 9000 Series switch. Follow these guidelines when you upgrade EPLDs:

  • Before you upgrade any EPLD images, be sure that you have updated the Cisco NX-OS operating system to the level required for the images and be sure that you have an EPLD image file.
  • You can execute an upgrade from the active supervisor module only. This upgrade is for one or all of the modules as follows:

You can upgrade a module individually.

You can upgrade all modules sequentially.

You can upgrade all modules in parallel.

  • You can update the images for one or all modules whether the switch is online or offline as follows:

If the modules are online, only the EPLD images with version numbers that differ from the new EPLD images are upgraded.

If the modules are offline, all of the EPLD images are upgraded.

  • On a Cisco Nexus 95 xx switch that has two supervisor modules, upgrade the EPLDs for the standby supervisor and then switch the active supervisor to the standby mode to upgrade its EPLDs (the supervisor switchover is not disruptive to traffic on Cisco Nexus 95 xx switches). On a switch that has only one supervisor module, you can upgrade the active supervisor, but this will disrupt its operations during the upgrade.
  • If you interrupt an upgrade, you must upgrade the module that is being upgraded again.
  • The upgrade process disrupts traffic on the targeted module.
  • Do not insert or remove any modules while an EPLD upgrade is in progress.

.

Upgrading the EPLD Images

If you have a Cisco Nexus 9000 Series switch that is running Cisco NX-OS Release 6.1(2)I2(1) build 6.1(2)I2(0.206) or any earlier build of 6.1(2)I2(0. xxx ), follow the special upgrade steps presented here.


Note If you have a Cisco Nexus 9508 switch that is running the n9000-dk9.6.1.2.I1.1.bin image from November 18, 2013, you do not need to enter the write erase command in Step 5. We do recommend upgrading EPLD images, but it is not mandatory.



Step 1 Copy the n9000-dk9.6.1.2.I2.1.bin image to bootflash.

Step 2 Change the boot variables to the NX-OS image by entering the following commands:

switch# configure terminal
switch (config)# boot nxos bootflash:n9000-dk9.6.1.2.I2.2a.bin
Cisco Nexus 9000 Series NX-OS Release Notes, Release 6.1(2)I1(2)

Step 3 Enter the copy running-config startup-config command to set the startup boot variables to the NX-OS image.

Step 4 Copy the running-configuration file to a backup-configuration file to ensure that you load the running configuration after you make the upgrade.

Step 5 Enter the write erase command. The boot variables remain set. Enter the reload command.

On a Cisco Nexus 9508 or 9504 switch with dual supervisors, an “Autocopy in progress” message appears when you enter the reload command. Enter No and wait for the auto copy operation to finish.

Step 6 Enter the install all nxos bootflash:n9000-dk9.6.1.2.I2.2a.bin command to upgrade the BIOS. Do not reboot the chassis.

Step 7 Enter the install epld bootflash:n9000-epld.6.1.2.I2.2a.img module all command to upgrade the EPLD. The chassis will reboot automatically.

Step 8 Restore the configuration that you saved in Step 4 from the bootflash. If this is a fresh install or upgrade, you do not need to restore the previous running configuration.

Verifying the EPLD Upgrades

You can verify the EPLD upgrades for each slot in the switch by using the commands listed in Table 3 .

Table 3 Commands Used to Display EPLD Information for Modules

Command
Modules Verified

show version module slot_number epld

I/O and supervisor modules

Displaying the Status of EPLD Upgrades

To display the status of EPLD upgrades on the switch, use the show install epld status command as shown in Example 1.

Example 1 Displaying EPLD Upgrades

switch# show install epld status
 
 

Limitations

When EPLDs are upgraded, the following guidelines and observations apply:

  • If a module is not online, you cannot upgrade its EPLD images.
  • If there are two supervisors installed in the switch (Cisco Nexus 9504 and 9508 only), you can either upgrade only the standby supervisor from the active supervisor or upgrade all modules (including both supervisor modules) by using the following commands:

install epld bootflash: image module standby_supervisor_slot_number (upgrades only the standby supervisor module)


Note After you use this command, you can switchover the active and standby supervisor modules and then upgrade the other supervisor.


install epld bootflash: image module all (upgrades all of the modules)

  • If there is only one supervisor installed in the switch, your upgrading or downgrading of EPLD images is disruptive.

Related Documentation

Cisco Nexus 9000 Series documentation is available at the following URL:

http://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/tsd-products-support-series-home.html

The release notes for upgrading Cisco NX-OS are available at the following URL:

http://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-release-notes-list.html

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation , which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html