Release Notes for Cisco Catalyst 9400 Series Switches, Cisco IOS XE Bengaluru 17.4.x

Introduction

Cisco Catalyst 9400 Series Switches are Cisco’s leading modular enterprise switching access platform and have been purpose-built to address emerging trends of Security, IoT, Mobility, and Cloud.

They deliver complete convergence with the rest of the Cisco Catalyst 9000 Series Switches in terms of ASIC architecture with a Unified Access Data Plane (UADP) 2.0. The platform runs an Open Cisco IOS XE that supports model driven programmability, has the capacity to host containers, and run 3rd party applications and scripts natively within the switch (by virtue of x86 CPU architecture, local storage, and a higher memory footprint). This series forms the foundational building block for SD-Access, which is Cisco’s lead enterprise architecture.

Cisco Catalyst 9400 Series Switches are enterprise optimized with a dual-serviceable fan tray design, side to side airflow, and are closet-friendly with a16-inch depth

Whats New in Cisco IOS XE Bengaluru 17.4.1

Hardware Features in Cisco IOS XE Bengaluru 17.4.1

There are no new hardware features in this release.

Software Features in Cisco IOS XE Bengaluru 17.4.1

Feature Name

Description, Documentation Link, and License Level Information

BGP Large Community

Introduces support for BGP large communities attribute which provides the capability for tagging routes and modifying BGP routing policy on devices. They are similar to BGP communities attributes, but with a twelve octet size.

See IP Routing → Configuring BGP Large Community

(Network Essentials and Network Advantage)

Line Configuration for Disabling Auto-Consolidation

Introduces support for the no line auto-consolidation command in line configuration mode. This command disables the auto consolidation of line commands during the nonvolatile generation (NVGEN) process.

See System Management →Line Auto Consolidation

(Network Essentials and Network Advantage)

VRF-Aware RADIUS Automated Tester

Allows you to configure RADIUS automated tester for a non-default VRF. With this, the automated tester can access information about VRF and source-interface from the global source-interface and avoids marking the server as DEAD.

(Network Essentials and Network Advantage)

Programmability

  • OpenFlow Rewrite Fields

  • Application Hosting on Internal Flash for Cisco Signed Applications

  • YANG Data Models

The following programmability features are introduced in this release:

  • OpenFlow Rewrite Fields: Introduces support for rewriting ipv4_src, ipv4_dst, icmpv4_type, tcp_src, udp_src, tcp_dst, udp_dst, ip_dscp fields .

  • Application Hosting on Internal Flash for Cisco Signed Applications: Introduces support for application hosting on bootflash. The iox command in the global configuration mode creates an IOx bootflash partition for hosting applications.

  • YANG Data Models: For the list of Cisco IOS XE YANG models available with this release, navigate to: https://github.com/YangModels/yang/tree/master/vendor/cisco/xe/1741.

    Revision statements embedded in the YANG files indicate if there has been a model revision. The README.md file in the same GitHub location highlights changes that have been made in the release.


(Network Essentials and Network Advantage)

RadSec over TLS and DTLS

RadSec over Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS) is now supported on both client and device servers.


(Network Essentials and Network Advantage)

New on the Web UI

  • Smart Licensing Using Policy

  • Stealthwatch Cloud support for NetFlow monitoring

Use the WebUI for:

  • Smart Licensing Using Policy—Any new licenses that you purchase are added to a Cisco Smart Account. Smart licenses are no longer device-specific, but organization-specific. You can create separate Virtual Accounts for different departments in your organization and assign licenses to them from the centralized pool, thereby improving license portability and efficient consumption.

    Different Virtual Accounts can be assigned licenses that can be used to register product instances using a registration token. When a device is no longer in use by a department, the license can be provisioned to another department or pooled back to the Smart Account. Also, you can choose the deployment option, based on your security profile, such as direct, on-premise, and offline.

  • Stealthwatch Cloud support for NetFlow monitoring—Allows you to monitor packets to detect threats and security vulnerabilities in your public cloud network powered by Cisco Stealthwatch Cloud.

Serviceability

show etherchannel

The command was modified. The platform keyword was introduced. It displays summary of channel-group for the specified platform.

Important Notes

Cisco StackWise Virtual - Supported and Unsupported Features

When you enable Cisco StackWise Virtual on the device

  • Layer 2, Layer 3, Security, Quality of Service, Multicast, Application, Monitoring and Management, Multiprotocol Label Switching, High Availability, VXLAN BGP EVPN, and Cisco Sofware-Defined Access are supported.

    Contact the Cisco Technical Support Centre for the specific list of features that are supported under each one of these technologies.

  • Resilient Ethernet Protocol (REP) and Remote Switched Port Analyzer (RSPAN) are NOT supported.

Unsupported Features

  • Audio Video Bridging (including IEEE802.1AS, IEEE 802.1Qat, and IEEE 802.1Qav)

  • Cisco TrustSec Network Device Admission Control (NDAC) on Uplinks

  • Converged Access for Branch Deployments

  • Fast PoE

  • IPsec VPN

  • MACsec Switch to Switch Connections on C9400-SUP-1XL-Y.

  • Performance Monitoring (PerfMon)

  • Resilient Ethernet Protocol (REP) (REP is not supported only in this release. See CSCvv91619 and CSCvw17155).

  • Virtual Routing and Forwarding (VRF)-Aware web authentication

Complete List of Supported Features

For the complete list of features supported on a platform, see the Cisco Feature Navigator at https://cfnng.cisco.com.

Accessing Hidden Commands

Starting with Cisco IOS XE Fuji 16.8.1a, as an improved security measure, the way in which hidden commands can be accessed has changed.

Hidden commands have always been present in Cisco IOS XE, but were not equipped with CLI help. That is, entering a question mark (?) at the system prompt did not display the list of available commands. These commands were only meant to assist Cisco TAC in advanced troubleshooting and were not documented either.

Starting with Cisco IOS XE Fuji 16.8.1a, hidden commands are available under:

  • Category 1—Hidden commands in privileged or User EXEC mode. Begin by entering the service internal command to access these commands.

  • Category 2—Hidden commands in one of the configuration modes (global, interface and so on). These commands do not require the service internal command.

Further, the following applies to hidden commands under Category 1 and 2:

  • The commands have CLI help. Enter enter a question mark (?) at the system prompt to display the list of available commands.

    Note: For Category 1, enter the service internal command before you enter the question mark; you do not have to do this for Category 2.

  • The system generates a %PARSER-5-HIDDEN syslog message when a hidden command is used. For example:
    *Feb 14 10:44:37.917: %PARSER-5-HIDDEN: Warning!!! 'show processes memory old-header ' is a hidden command. 
    Use of this command is not recommended/supported and will be removed in future.
    
    

Apart from category 1 and 2, there remain internal commands displayed on the CLI, for which the system does NOT generate the %PARSER-5-HIDDEN syslog message.


Important

We recommend that you use any hidden command only under TAC supervision.

If you find that you are using a hidden command, open a TAC case for help with finding another way of collecting the same information as the hidden command (for a hidden EXEC mode command), or to configure the same functionality (for a hidden configuration mode command) using non-hidden commands.


Supported Hardware

Cisco Catalyst 9400 Series Switches—Model Numbers

The following table lists the supported switch models. For information about the available license levels, see section License Levels.

Switch Model

(append with “=” for spares)

Description

C9404R

Cisco Catalyst 9400 Series 4 slot chassis

  • Redundant supervisor module capability

  • Two switching module slots

  • Hot-swappable, front and rear serviceable, non-redundant fan tray assembly

  • Four power supply module slots

C9407R

Cisco Catalyst 9400 Series 7 slot chassis

  • Redundant supervisor module capability

  • Five switching module slots

  • Hot-swappable, front and rear serviceable fan tray assembly

  • Eight power supply module slots

C9410R

Cisco Catalyst 9400 Series 10 slot chassis

  • Redundant supervisor module capability

  • Eight switching module slots

  • Hot-swappable, front and rear serviceable fan tray assembly

  • Eight power supply module slots

Supported Hardware on Cisco Catalyst 9400 Series Switches

Product ID

(append with “=” for spares)

Description

Supervisor Modules

C9400-SUP-1

Cisco Catalyst 9400 Series Supervisor 1 Module

This supervisor module is supported on the C9404R, C9407R, and C9410R chassis

C9400-SUP-1XL

Cisco Catalyst 9400 Series Supervisor 1XL Module

This supervisor module is supported on the C9404R, C9407R, and C9410R chassis

C9400-SUP-1XL-Y

Cisco Catalyst 9400 Series Supervisor 25XL Module

This supervisor module is supported on the C9404R, C9407R, and C9410R chassis

Gigabit Ethernet Switching Modules

C9400-LC-24S

Cisco Catalyst 9400 Series 24 Port, 1 Gigabit Ethernet SFP module that supports 100/1000 BASET-T with Cu-SFP

C9400-LC-48H

Cisco Catalyst 9400 Series 48-Port Gigabit Ethernet UPOE+ module supporting up to 90W on each of its 48 RJ45 ports.

C9400-LC-48P

Cisco Catalyst 9400 Series 48 Port, 1 Gigabit Ethernet POE/POE+ module supporting up to 30W per port.

C9400-LC-48S

Cisco Catalyst 9400 Series 48 Port, 1 Gigabit Ethernet SFP module that supports 100/1000 BASET-T with Cu-SFP

C9400-LC-48T

Cisco Catalyst 9400 Series 48-Port 10/100/1000 (RJ-45)

C9400-LC-48U

Cisco Catalyst 9400 Series 48-Port UPOE 10/100/1000 (RJ-45)

Ten Gigabit Ethernet Switching Modules

C9400-LC-24XS

Cisco Catalyst 9400 Series 24-Port SFP/SFP+ Module

Multigigabit Ethernet Switching Modules

C9400-LC-48UX

Cisco Catalyst 9400 Series 48-port, UPOE Multigigabit Ethernet Module with:

  • 24 ports (Ports 1 to 24) 1G UPOE 10/100/1000 (RJ-45)

  • 24 ports (Ports 25 to 48) MultiGigabit Ethernet 100/1000/2500/5000/10000 UPOE ports

M.2 SATA SSD Modules1 (for the Supervisor)

C9400-SSD-240GB

Cisco Catalyst 9400 Series 240GB M2 SATA memory

C9400-SSD-480GB

Cisco Catalyst 9400 Series 480GB M2 SATA memory

C9400-SSD-960GB

Cisco Catalyst 9400 Series 960GB M2 SATA memory

AC Power Supply Modules

C9400-PWR-2100AC

Cisco Catalyst 9400 Series 2100W AC Power Supply

C9400-PWR-3200AC

Cisco Catalyst 9400 Series 3200W AC Power Supply

DC Power Supply Modules

C9400-PWR-3200DC

Cisco Catalyst 9400 Series 3200W DC Power Supply

1 M.2 Serial Advanced Technology Attachment (SATA) Solid State Drive (SSD) Module

Compatibility Matrix

The following table provides software compatibility information.

Catalyst 9400

Cisco Identity Services Engine

Cisco Access Control Server

Cisco Prime Infrastructure

Amsterdam 17.3.4

2.7

-

PI 3.9 + PI 3.9 latest maintenance release + PI 3.9 latest device pack

See Cisco Prime Infrastructure 3.9 Downloads.

Amsterdam 17.3.3

2.7

-

PI 3.9 + PI 3.9 latest maintenance release + PI 3.9 latest device pack

See Cisco Prime Infrastructure 3.9 Downloads.

Amsterdam 17.3.2a

2.7

-

PI 3.8 + PI 3.8 latest maintenance release + PI 3.8 latest device pack

See Cisco Prime Infrastructure 3.8 Downloads.

Amsterdam 17.3.1

2.7

-

PI 3.8 + PI 3.8 latest maintenance release + PI 3.8 latest device pack

See Cisco Prime Infrastructure 3.8 Downloads.

Amsterdam 17.2.1

2.7

-

PI 3.7 + PI 3.7 latest maintenance release + PI 3.7 latest device pack

See Cisco Prime Infrastructure 3.7 Downloads.

Amsterdam 17.1.1

2.7

-

PI 3.6 + PI 3.6 latest maintenance release + PI 3.6 latest device pack

See Cisco Prime Infrastructure 3.6Downloads.

Gibraltar 16.12.6

2.6

-

PI 3.9 + PI 3.9 latest maintenance release + PI 3.9 latest device pack

See Cisco Prime Infrastructure 3.9 → Downloads.

Gibraltar 16.12.5b

2.6

-

PI 3.9 + PI 3.9 latest maintenance release + PI 3.9 latest device pack

See Cisco Prime Infrastructure 3.9 → Downloads.

Gibraltar 16.12.5

2.6

-

PI 3.9 + PI 3.9 latest maintenance release + PI 3.9 latest device pack

See Cisco Prime Infrastructure 3.9 → Downloads.

Gibraltar 16.12.4

2.6

-

PI 3.8 + PI 3.8 latest maintenance release + PI 3.8 latest device pack

See Cisco Prime Infrastructure 3.8 → Downloads.

Gibraltar 16.12.3a

2.6

-

PI 3.5 + PI 3.5 latest maintenance release + PI 3.5 latest device pack

See Cisco Prime Infrastructure 3.5Downloads.

Gibraltar 16.12.3

2.6

-

PI 3.5 + PI 3.5 latest maintenance release + PI 3.5 latest device pack

See Cisco Prime Infrastructure 3.5Downloads.

Gibraltar 16.12.2

2.6

-

PI 3.5 + PI 3.5 latest maintenance release + PI 3.5 latest device pack

See Cisco Prime Infrastructure 3.5Downloads.

Gibraltar 16.12.1

2.6

-

PI 3.5 + PI 3.5 latest maintenance release + PI 3.5 latest device pack

See Cisco Prime Infrastructure 3.5Downloads.

Gibraltar 16.11.1

2.6

2.4 Patch 5

5.4

5.5

PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack

See Cisco Prime Infrastructure 3.4Downloads.

Gibraltar 16.10.1

2.3 Patch 1

2.4 Patch 1

5.4

5.5

PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack

See Cisco Prime Infrastructure 3.4Downloads.

Fuji 16.9.7

2.5

2.1

5.4

5.5

PI 3.9 + PI 3.9 latest maintenance release + PI 3.9 latest device pack

See Cisco Prime Infrastructure 3.9Downloads.

Fuji 16.9.6

2.3 Patch 1

2.4 Patch 1

5.4

5.5

PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack

See Cisco Prime Infrastructure 3.4Downloads.

Fuji 16.9.5

2.3 Patch 1

2.4 Patch 1

5.4

5.5

PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack

See Cisco Prime Infrastructure 3.4Downloads.

Fuji 16.9.4

2.3 Patch 1

2.4 Patch 1

5.4

5.5

PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack

See Cisco Prime Infrastructure 3.4Downloads.

Fuji 16.9.3

2.3 Patch 1

2.4 Patch 1

5.4

5.5

PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack

See Cisco Prime Infrastructure 3.4Downloads.

Fuji 16.9.2

2.3 Patch 1

2.4 Patch 1

5.4

5.5

PI 3.4 + PI 3.4 latest maintenance release + PI 3.4 latest device pack

See Cisco Prime Infrastructure 3.4Downloads.

Fuji 16.9.1

2.3 Patch 1

2.4 Patch 1

5.4

5.5

PI 3.4 + PI 3.4 latest device pack

See Cisco Prime Infrastructure 3.4Downloads.

Fuji 16.8.1a

2.3 Patch 1

2.4

5.4

5.5

PI 3.3 + PI 3.3 latest maintenance release + PI 3.3 latest device pack

See Cisco Prime Infrastructure 3.3Downloads.

Everest 16.6.4a

2.2

2.3

5.4

5.5

PI 3.1.6 + Device Pack 13

See Cisco Prime Infrastructure 3.1Downloads.

Everest 16.6.4

2.2

2.3

5.4

5.5

PI 3.1.6 + Device Pack 13

See Cisco Prime Infrastructure 3.1Downloads.

Everest 16.6.3

2.2

2.3

5.4

5.5

PI 3.1.6 + Device Pack 13

See Cisco Prime Infrastructure 3.1Downloads

Everest 16.6.2

2.2

2.3

5.4

5.5

PI 3.1.6 + Device Pack 13

See Cisco Prime Infrastructure 3.1Downloads

Everest 16.6.1

2.2

5.4

5.5

PI 3.1.6 + Device Pack 13

See Cisco Prime Infrastructure 3.1Downloads

Web UI System Requirements

The following subsections list the hardware and software required to access the Web UI:

Minimum Hardware Requirements

Processor Speed

DRAM

Number of Colors

Resolution

Font Size

233 MHz minimum2

512 MB3

256

1280 x 800 or higher

Small

2 We recommend 1 GHz
3 We recommend 1 GB DRAM

Software Requirements

Operating Systems

  • Windows 10 or later

  • Mac OS X 10.9.5 or later

Browsers

  • Google Chrome—Version 59 or later (On Windows and Mac)

  • Microsoft Edge

  • Mozilla Firefox—Version 54 or later (On Windows and Mac)

  • Safari—Version 10 or later (On Mac)

Upgrading the Switch Software

This section covers the various aspects of upgrading or downgrading the device software.


Note

You cannot use the Web UI to install, upgrade, or downgrade device software.

Finding the Software Version

The package files for the Cisco IOS XE software are stored on the system board flash device (flash:).

You can use the show version privileged EXEC command to see the software version that is running on your switch.


Note

Although the show version output always shows the software image running on the switch, the model name shown at the end of this display is the factory configuration and does not change if you upgrade the software license.

You can also use the dir filesystem: privileged EXEC command to see the directory names of other software images that you might have stored in flash memory.

Software Images

Release

Image Type

File Name

Cisco IOS XE Bengaluru 17.4.1

CAT9K_IOSXE

cat9k_iosxe.17.04.01.SPA.bin

No Payload Encryption (NPE)

cat9k_iosxe_npe.17.04.01.SPA.bin

Software Installation Commands

Summary of Software Installation Commands

To install and activate the specified file, and to commit changes to be persistent across reloads:

install add file filename [ activate commit]

To separately install, activate, commit, cancel, or remove the installation file: install ?

add file tftp: filename

Copies the install file package from a remote location to the device and performs a compatibility check for the platform and image versions.

activate [ auto-abort-timer]

Activates the file, and reloads the device. The auto-abort-timer keyword automatically rolls back image activation.

commit

Makes changes persistent over reloads.

rollback to committed

Rolls back the update to the last committed version.

abort

Cancels file activation, and rolls back to the version that was running before the current installation procedure started.

remove

Deletes all unused and inactive software installation files.

Upgrading in Install Mode

Follow these instructions to upgrade from one release to another, in install mode. To perform a software image upgrade, you must be booted into IOS via boot flash:packages.conf .

Before you begin


Caution

You must comply with these cautionary guidelines during an upgrade:

  • Do not power cycle the switch.

  • Do not disconnect power or remove the supervisor module.

  • Do not perform an online insertion and replacement (OIR) of either supervisor (in a High Availability setup), if one of the supervisor modules in the chassis is in the process of a bootloader upgrade or when the switch is booting up.

  • Do not perform an OIR of a switching module (linecard) when the switch is booting up.



Note

Disconnecting and reconnecting power to a Cisco Catalyst 9400 Series Supervisor 1 Module within a 5-second window, can corrupt the boot SPI.


Note that you can use this procedure for the following upgrade scenarios.

When upgrading from ...

Permitted Supervisor Setup

(Applies to the release you are upgrading from)

First upgrade to...

To upgrade to ...

Cisco IOS XE Everest 16.6.14

Upgrade a single supervisor, and complete the boot loader and CPLD upgrade. After completing the first supervisor upgrade, remove and swap in the second supervisor. After both supervisors are upgraded, they can be inserted and booted in a high availability setup.

Note 
Do not simultaneously upgrade dual supervisors from Cisco IOS XE Everest 16.6.1 to a later release. Doing so may cause hardware damage.

Cisco IOS XE Everest 16.6.3

Follow the upgrade steps as in the Release Notes for Cisco Catalyst 9400 Series Switches, Cisco IOS XE Everest 16.6.x → Upgrading the Switch Software → Upgrading in Install Mode

Cisco IOS XE Bengaluru 17.4.x

Cisco IOS XE Everest 16.6.2 and later releases

This procedure automatically copies the images to both active and standby supervisor modules. Both supervisor modules are simultaneously upgraded.

Not applicable

4

When upgrading from Cisco IOS XE Everest 16.6.1 to a later release, the upgrade may take a long time, and the system will reset three times due to rommon and complex programmable logic device (CPLD) upgrade. Stateful switchover is supported from Cisco IOS XE Everest 16.6.2

The sample output in this section displays upgrade from Cisco IOS XE Amsterdam 17.3.1 to Cisco IOS XE Bengaluru 17.4.1 using install commands.

Procedure


Step 1

Clean-up

install remove inactive

Use this command to clean-up old installation files in case of insufficient space and to ensure that you have at least 1GB of space in flash, to expand a new image.

The following sample output displays the cleaning up of unused files, by using the install remove inactive command:
Switch# install remove inactive
install_remove: START Fri Nov 13 14:14:40 UTC 2020
Cleaning up unnecessary package files
No path specified, will use booted path flash:packages.conf
Cleaning flash:
Scanning boot directory for packages ... done.
Preparing packages list to delete ...
cat9k-cc_srdriver.17.03.01.SPA.pkg
File is in use, will not delete.
cat9k-espbase.17.03.01.SPA.pkg
File is in use, will not delete.
cat9k-rpbase.17.03.01.SPA.pkg
File is in use, will not delete.
cat9k-rpboot.17.03.01.SPA.pkg
File is in use, will not delete.
cat9k-sipbase.17.03.01.SPA.pkg
File is in use, will not delete.
cat9k-sipspa.17.03.01.SPA.pkg
File is in use, will not delete.
cat9k-srdriver.17.03.01.SPA.pkg
File is in use, will not delete.
cat9k-webui.17.03.01.SPA.pkg
File is in use, will not delete.
packages.conf
File is in use, will not delete.
done.
 
The following files will be deleted:
[R0]:
/flash/cat9k-cc_srdriver.17.03.01.SPA.pkg
/flash/cat9k-espbase.17.03.01.SPA.pkg
/flash/cat9k-guestshell.17.03.01.SPA.pkg
/flash/cat9k-rpbase.17.03.01.SPA.pkg
/flash/cat9k-rpboot.17.03.01.SPA.pkg
/flash/cat9k-sipbase.17.03.01.SPA.pkg
/flash/cat9k-sipspa.17.03.01.SPA.pkg
/flash/cat9k-srdriver.17.03.01.SPA.pkg
/flash/cat9k-webui.17.03.01.SPA.pkg
/flash/cat9k-wlc.17.03.01.SPA.pkg
/flash/packages.conf
/flash/cat9k_iosxe.17.03.01.SPA.bin
 
Do you want to remove the above files? [y/n]y
[R0]:
Deleting file flash:cat9k-cc_srdriver.17.03.01.SPA.pkg ... done.
Deleting file flash:cat9k-espbase.17.01.03.SPA.pkg ... done.
Deleting file flash:cat9k-guestshell.17.03.01.SPA.pkg ... done.
Deleting file flash:cat9k-rpbase.17.03.01.SPA.pkg ... done.
Deleting file flash:cat9k-rpboot.17.03.01.SPA.pkg ... done.
Deleting file flash:cat9k-sipbase.17.03.01.SPA.pkg ... done.
Deleting file flash:cat9k-sipspa.17.03.01.SPA.pkg ... done.
Deleting file flash:cat9k-srdriver.17.03.01.SPA.pkg ... done.
Deleting file flash:cat9k-webui.17.03.01.SPA.pkg ... done.
Deleting file flash:cat9k-wlc.17.03.01.SPA.pkg ... done.
Deleting file flash:packages.conf ... done.
SUCCESS: Files deleted.
SUCCESS: Files deleted.
--- Starting Post_Remove_Cleanup ---
Performing Post_Remove_Cleanup on Active/Standby
[R0] Post_Remove_Cleanup package(s) on R0
[R0] Finished Post_Remove_Cleanup on R0
Checking status of Post_Remove_Cleanup on [R0]
Post_Remove_Cleanup: Passed on [R0]
Finished Post_Remove_Cleanup
 
SUCCESS: install_remove Fri Nov 13 14:16:29 UTC 2020
Switch#

Step 2

Copy new image to flash

  1. copy tftp:[[//location]/directory]/filenameflash:

    Use this command to copy the new image from a TFTP server to flash memory. The location is either an IP address or a host name. The filename is specified relative to the directory used for file transfers. Skip this step if you want to use the new image from a TFTP server.
    Switch# copy tftp://10.8.0.6/image/cat9k_iosxe.17.04.01.SPA.bin flash:
    destination filename [cat9k_iosxe.17.04.01.SPA.bin]?
    Accessing tftp://10.8.0.6/image/cat9k_iosxe.17.04.01.SPA.bin...
    Loading /cat9k_iosxe.17.04.01.SPA.bin from 10.8.0.6 (via GigabitEthernet0/0): 
    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    [OK - 601216545 bytes]
     
    601216545 bytes copied in 50.649 secs (11870255 bytes/sec)
     
    
  2. dir flash:

    Use this command to confirm that the image has been successfully copied to flash.
    Switch# dir flash:*.bin
    Directory of flash:/*.bin
     
    Directory of flash:/
     
    434184 -rw- 601216545    Jul 15 2020 10:18:11 -07:00 cat9k_iosxe.17.04.01.SPA.bin
    11353194496 bytes total (8976625664 bytes free)
    
    
Step 3

Set boot variable

  1. boot system flash:packages.conf

    Use this command to set the boot variable to flash:packages.conf .
    Switch(config)# boot system flash:packages.conf
    
  2. no boot manual

    Use this command to configure the switch to auto-boot. Settings are synchronized with the standby switch, if applicable.
    Switch(config)# no boot manual
    Switch(config)# exit
  3. write memory

    Use this command to save boot settings.
    Switch# write memory
  4. show bootvar

    Use this command to verify the boot variable (packages.conf) and manual boot setting (no):
    Switch# show bootvar
    BOOT variable = bootflash:packages.conf
    MANUAL_BOOT variable = no
    BAUD variable = 9600
    ENABLE_BREAK variable = yes
    BOOTMODE variable does not exist
    IPXE_TIMEOUT variable does not exist
    CONFIG_FILE variable = 
    
    Standby BOOT variable = bootflash:packages.conf
    Standby MANUAL_BOOT variable = no
    Standby BAUD variable = 9600
    Standby ENABLE_BREAK variable = yes
    Standby BOOTMODE variable does not exist
    Standby IPXE_TIMEOUT variable does not exist
    Standby CONFIG_FILE variable = 
Step 4

Install image to flash

install add file activate commit

Use this command to install the image.

The following sample output displays installation of the Cisco IOS XE Bengaluru 17.4.1 software image in the flash memory:
Switch# install add file flash:cat9k_iosxe.17.04.01.SPA.bin
 activate commit

install_add_activate_commit: START Fri Nov 13 22:49:41 UTC 2020
 
*Jul 17 22:49:42.772: %IOSXE-5-PLATFORM: Switch 1 R0/0: Nov 13 22:49:42 install_engine.sh:
 %INSTALL-5-INSTALL_START_INFO: Started install one-shot flash:cat9k_iosxe.17.04.01.SPA.bin

install_add_activate_commit: Adding PACKAGE
 
--- Starting initial file syncing ---
Info: Finished copying flash:cat9k_iosxe.17.04.01.SPA.bin
 to the selected switch(es)
Finished initial file syncing
 
--- Starting Add ---
Performing Add on all members
[1] Add package(s) on switch 1
[1] Finished Add on switch 1
Checking status of Add on [1]
Add: Passed on [1]
Finished Add
 
install_add_activate_commit: Activating PACKAGE
 
/flash/cat9k-webui.17.04.01.SPA.pkg
/flash/cat9k-srdriver.17.04.01.SPA.pkg
/flash/cat9k-sipspa.17.04.01.SPA.pkg
/flash/cat9k-sipbase.17.04.01.SPA.pkg
/flash/cat9k-rpboot.17.04.01.SPA.pkg
/flash/cat9k-rpbase.17.04.01.SPA.pkg
/flash/cat9k-guestshell.17.04.01.SPA.pkg
/flash/cat9k-espbase.17.04.01.SPA.pkg
/flash/cat9k-cc_srdriver.17.04.01.SPA.pkg

This operation requires a reload of the system. Do you want to proceed? [y/n]y

--- Starting Activate ---
Performing Activate on all members
[1] Activate package(s) on switch 1
[1] Finished Activate on switch 1
Checking status of Activate on [1]
Activate: Passed on [1]
Finished Activate
 
--- Starting Commit ---
Performing Commit on all members
[1] Commit package(s) on switch 1
[1] Finished Commit on switch 1
Checking status of Commit on [1]
Commit: Passed on [1]
Finished Commit
 
Install will reload the system now!
 
Chassis 1 reloading, reason - Reload command
SUCCESS: install_add_activate_commit
/flash/cat9k-webui.17.04.01.SPA.pkg
/flash/cat9k-srdriver.17.04.01.SPA.pkg
/flash/cat9k-sipspa.17.04.01.SPA.pkg
/flash/cat9k-sipbase.17.04.01.SPA.pkg
/flash/cat9k-rpboot.17.04.01.SPA.pkg
/flash/cat9k-rpbase.17.04.01.SPA.pkg
/flash/cat9k-guestshell.17.04.01.SPA.pkg
/flash/cat9k-espbase.17.04.01.SPA.pkg
/flash/cat9k-cc_srdriver.17.04.01.SPA.pkg
Fri Nov 13 22:53:58 UTC 2020
Switch#

Note 
Old files listed in the logs will not be removed from flash.
Step 5

Verify installation

After the software has been successfully installed, check that the ten new .pkg files and two .conf are in the flash partition, and also check the version installed on the switch.

  1. dir flash:*.pkg

    The following is sample output of the dir flash:*.pkg command:
    Switch# dir flash:*.pkg
    Directory of flash:/*.pkg
    Directory of flash:/
    475140 -rw- 2012104     Jul 17 2020 09:52:41 -07:00 cat9k-cc_srdriver.17.03.01.SPA.pkg
    475141 -rw- 70333380    Jul 17 2020 09:52:44 -07:00 cat9k-espbase.17.03.01.SPA.pkg
    475142 -rw- 13256       Jul 17 2020 09:52:44 -07:00 cat9k-guestshell.17.03.01.SPA.pkg
    475143 -rw- 349635524   Jul 17 2020 09:52:54 -07:00 cat9k-rpbase.17.03.01.SPA.pkg
    475149 -rw- 24248187    Jul 17 2020 09:53:02 -07:00 cat9k-rpboot.17.03.01.SPA.pkg
    475144 -rw- 25285572    Jul 17 2020 09:52:55 -07:00 cat9k-sipbase.17.03.01.SPA.pkg
    475145 -rw- 20947908    Jul 17 2020 09:52:55 -07:00 cat9k-sipspa.17.03.01.SPA.pkg
    475146 -rw- 2962372     Jul 17 2020 09:52:56 -07:00 cat9k-srdriver.17.03.01.SPA.pkg
    475147 -rw- 13284288    Jul 17 2020 09:52:56 -07:00 cat9k-webui.17.03.01.SPA.pkg
    475148 -rw- 13248       Jul 17 2020 09:52:56 -07:00 cat9k-wlc.17.03.01.SPA.pkg
    
    491524 -rw- 25711568    Nov 13 2020 11:49:33 -07:00  cat9k-cc_srdriver.17.04.01.SPA.pkg
    491525 -rw- 78484428    Nov 13 2020 11:49:35 -07:00  cat9k-espbase.17.04.01.SPA.pkg
    491526 -rw- 1598412     Nov 13 2020 11:49:35 -07:00  cat9k-guestshell.17.04.01.SPA.pkg
    491527 -rw- 404153288   Nov 13 2020 11:49:47 -07:00  cat9k-rpbase.17.04.01.SPA.pkg
    491533 -rw- 31657374    Nov 13 2020 11:50:09 -07:00  cat9k-rpboot.17.04.01.SPA.pkg
    491528 -rw- 27681740    Nov 13 2020 11:49:48 -07:00  cat9k-sipbase.17.04.01.SPA.pkg
    491529 -rw- 52224968    Nov 13 2020 11:49:49 -07:00  cat9k-sipspa.17.04.01.SPA.pkg
    491530 -rw- 31130572    Nov 13 2020 11:49:50 -07:00  cat9k-srdriver.17.04.01.SPA.pkg
    491531 -rw- 14783432    Nov 13 2020 11:49:51 -07:00  cat9k-webui.17.04.01.SPA.pkg
    491532 -rw- 9160        Nov 13 2020 11:49:51 -07:00  cat9k-wlc.17.04.01.SPA.pkg
    11353194496 bytes total (8963174400 bytes free)
    
    
  2. dir flash:*.conf

    The following is sample output of the dir flash:*.conf command. It displays the .conf files in the flash partition; note the two .conf files:
    Switch# dir flash:*.conf
     
    Directory of flash:/*.conf
    Directory of flash:/
    
    16631  -rw- 4882 Jul 17 2020 05:39:42 +00:00  packages.conf
    16634  -rw- 4882 Jul 17 2020 05:34:06 +00:00  cat9k_iosxe.17.04.01.SPA.conf
    
    
    • packages.conf—the file that has been re-written with the newly installed .pkg files

    • cat9k_iosxe.17.04.01.SPA.conf— a backup copy of the newly installed packages.conf file

  3. show install summary

    The following is sample output of the show install summary command:
    Switch# show install summary
    
    [ R0 ] Installed Package(s) Information:
    State (St): I - Inactive, U - Activated & Uncommitted,
    C - Activated & Committed, D - Deactivated & Uncommitted
    --------------------------------------------------------------------------------
    Type St Filename/Version
    --------------------------------------------------------------------------------
    IMG C 17.04.01.0.58
    
    --------------------------------------------------------------------------------
    Auto abort timer: inactive
    -------------------------------------------------------------------------------- 
Step 6

Verify version

show version

After the image boots up, use this command to verify the version of the new image.

The following sample output of the show version command displays the Cisco IOS XE Bengaluru 17.4.1 image on the device:
Switch# show version
Cisco IOS XE Software, Version 17.04.01
Cisco IOS Software [Bengaluru], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.4.1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2020 by Cisco Systems, Inc.
<output truncated>

Downgrading in Install Mode

Follow these instructions to downgrade from one release to another, in install mode. To perform a software image downgrade, you must be booted into IOS via boot flash:packages.conf .

Before you begin

Note that you can use this procedure for the following downgrade scenarios:

When downgrading from ...

Permitted Supervisor Setup

(Applies to the release you are downgrading from)

To ...

Cisco IOS XE Bengaluru 17.4.x

This procedure automatically copies the images to both active and standby supervisor modules. Both supervisor modules are simultaneously downgraded.

Note 

Do not perform an Online Removal and Replacement (OIR) of either supervisor module during the process.

Cisco IOS XE Amsterdam 17.3.x or earlier releases.


Note

New switch models that are introduced in a release cannot be downgraded. The release in which a module is introduced is the minimum software version for that model. We recommend upgrading all existing hardware to the same release as the latest hardware.

The sample output in this section shows downgrade from Cisco IOS XE Bengaluru 17.4.1 to Cisco IOS XE Amsterdam 17.3.1, using install commands.

Procedure


Step 1

Clean-up

install remove inactive

Use this command to clean-up old installation files in case of insufficient space and to ensure that you have at least 1GB of space in flash, to expand a new image.

The following sample output displays the cleaning up of unused files, by using the install remove inactive command:
Switch# install remove inactive
 install_remove: START Fri Nov 13 11:42:27 UTC 2020

Cleaning up unnecessary package files

No path specified, will use booted path bootflash:packages.conf

Cleaning bootflash:
  Scanning boot directory for packages ... done.
  Preparing packages list to delete ... 
    cat9k-cc_srdriver.17.04.01.SSA.pkg
      File is in use, will not delete.
    cat9k-espbase.17.04.01.SSA.pkg
      File is in use, will not delete.
    cat9k-guestshell.17.04.01.SSA.pkg
      File is in use, will not delete.
    cat9k-rpbase.17.04.01.SSA.pkg
      File is in use, will not delete.
    cat9k-rpboot.17.04.01.SSA.pkg
      File is in use, will not delete.
    cat9k-sipbase.17.04.01.SSA.pkg
      File is in use, will not delete.
    cat9k-sipspa.17.04.01.SSA.pkg
      File is in use, will not delete.
    cat9k-srdriver.17.04.01.SSA.pkg
      File is in use, will not delete.
    cat9k-webui.17.04.01.SSA.pkg
      File is in use, will not delete.
    cat9k-wlc.17.04.01.SSA.pkg
      File is in use, will not delete.
    packages.conf
      File is in use, will not delete.
  done.
SUCCESS: No extra package or provisioning files found on media. Nothing to clean.

SUCCESS: install_remove  Fri Nov 13 11:42:39 UTC 2020

--- Starting Post_Remove_Cleanup ---
Performing Post_Remove_Cleanup on all members
[1] Post_Remove_Cleanup package(s) on switch 1
[1] Finished Post_Remove_Cleanup on switch 1
Checking status of Post_Remove_Cleanup on [1]
Post_Remove_Cleanup: Passed on [1]
Finished Post_Remove_Cleanup
 
SUCCESS: install_remove Fri Nov 13 19:52:25 UTC 2020
Switch#

Step 2

Copy new image to flash

  1. copy tftp:[[//location]/directory]/filenameflash:

    Use this command to copy the new image from a TFTP server to flash memory. The location is either an IP address or a host name. The filename is specified relative to the directory used for file transfers. Skip this step if you want to use the new image from a TFTP server.
    Switch# copy tftp://10.8.0.6/image/cat9k_iosxe.17.03.01.SPA.bin flash:
    Destination filename [cat9k_iosxe.17.03.01.SPA.bin]?
    Accessing tftp://10.8.0.6//cat9k_iosxe.17.03.01.SPA.bin...
    Loading /cat9k_iosxe.17.03.01.SPA.bin from 10.8.0.6 (via GigabitEthernet0/0): 
    !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    [OK - 508584771 bytes]
    508584771 bytes copied in 101.005 secs (5035244 bytes/sec)
     
    
  2. dir flash:

    Use this command to confirm that the image has been successfully copied to flash.
    Switch# dir flash:*.bin
    Directory of flash:/*.bin
     
    Directory of flash:/
     
    434184 -rw- 508584771 Nov 13 2020 13:35:16 -07:00 cat9k_iosxe.17.03.01.SPA.bin
    11353194496 bytes total (9055866880 bytes free)
    
    
Step 3

Set boot variable

  1. boot system flash:packages.conf

    Use this command to set the boot variable to flash:packages.conf .
    Switch(config)# boot system flash:packages.conf
    
  2. no boot manual

    Use this command to configure the switch to auto-boot. Settings are synchronized with the standby switch, if applicable.
    Switch(config)# no boot manual
    Switch(config)# exit
  3. write memory

    Use this command to save boot settings.
    Switch# write memory
  4. show bootvar

    Use this command to verify the boot variable (packages.conf) and manual boot setting (no):
    Switch# show bootvar
    BOOT variable = bootflash:packages.conf
    MANUAL_BOOT variable = no
    BAUD variable = 9600
    ENABLE_BREAK variable = yes
    BOOTMODE variable does not exist
    IPXE_TIMEOUT variable does not exist
    CONFIG_FILE variable = 
    
    Standby BOOT variable = bootflash:packages.conf
    Standby MANUAL_BOOT variable = no
    Standby BAUD variable = 9600
    Standby ENABLE_BREAK variable = yes
    Standby BOOTMODE variable does not exist
    Standby IPXE_TIMEOUT variable does not exist
    Standby CONFIG_FILE variable = 
Step 4

Downgrade software image

Use one of these options, to downgrade:

  • install add file activate commit
  • install rollback to committed
The following example displays the installation of the cat9k_iosxe.17.03.01.SPA.bin software image to flash, to downgrade the switch by using the install add file activate commit command. You can point to the source image on your tftp server or in flash if you have it copied to flash.
Switch# install add file flash:cat9k_iosxe.17.03.01.SPA.bin activate commit

install_add_activate_commit: START Fri 13 Nov 22:49:41 UTC 2020

*Nov 13 22:49:42.772: %IOSXE-5-PLATFORM: Switch 1 R0/0: Nov 13 22:49:42 install_engine.sh:
%INSTALL-5-INSTALL_START_INFO: Started install one-shot flash:cat9k_iosxe.17.03.01.SPA.bininstall_add_activate_commit: Adding PACKAGE
 
--- Starting initial file syncing ---
Info: Finished copying flash:cat9k_iosxe.17.03.01.SPA.bin to the selected switch(es)
Finished initial file syncing
 
--- Starting Add ---
Performing Add on all members
[1] Add package(s) on switch 1
[1] Finished Add on switch 1
Checking status of Add on [1]
Add: Passed on [1]
Finished Add
 
install_add_activate_commit: Activating PACKAGE
 
/flash/cat9k-webui.17.03.01.SPA.pkg
/flash/cat9k-srdriver.17.03.01.SPA.pkg
/flash/cat9k-sipspa.17.03.01.SPA.pkg
/flash/cat9k-sipbase.17.03.01.SPA.pkg
/flash/cat9k-rpboot.17.03.01.SPA.pkg
/flash/cat9k-rpbase.17.03.01.SPA.pkg
/flash/cat9k-espbase.17.03.01.SPA.pkg
/flash/cat9k-cc_srdriver.17.03.01.SPA.pkg
 
This operation requires a reload of the system. Do you want to proceed? [y/n]y

--- Starting Activate ---
Performing Activate on all members
[1] Activate package(s) on switch 1
[1] Finished Activate on switch 1
Checking status of Activate on [1]
Activate: Passed on [1]
Finished Activate
 
--- Starting Commit ---
Performing Commit on all members
[1] Commit package(s) on switch 1
[1] Finished Commit on switch 1
Checking status of Commit on [1]
Commit: Passed on [1]
Finished Commit
 
Install will reload the system now!
 
Chassis 1 reloading, reason - Reload command
SUCCESS: install_add_activate_commit
/flash/cat9k-webui.17.03.01.SPA.pkg
/flash/cat9k-srdriver.17.03.01.SPA.pkg
/flash/cat9k-sipspa.17.03.01.SPA.pkg
/flash/cat9k-sipbase.17.03.01.SPA.pkg
/flash/cat9k-rpboot.17.03.01.SPA.pkg
/flash/cat9k-rpbase.17.03.01.SPA.pkg
/flash/cat9k-guestshell.17.03.01.SPA.pkg
/flash/cat9k-espbase.17.03.01.SPA.pkg
/flash/cat9k-cc_srdriver.17.03.01.SPA.pkg
Fri Nov 13 22:53:58 UTC 2020
Switch#
 

The following example displays sample output when downgrading the switch by using the install rollback to committed command.

Caution 
Use the install rollback to committed command for downgrading, only if the version you want to downgrade to, is committed.
Switch# install rollback to committed

install_rollback: START Fri 13 Nov 14:24:56 UTC 2020
 
This operation requires a reload of the system. Do you want to proceed? [y/n]
*Nov 13 14:24:57.555: %IOSXE-5-PLATFORM: R0/0: Nov 13 14:24:57 install_engine.sh: 
%INSTALL-5-INSTALL_START_INFO: Started install rollbacky
--- Starting Rollback ---
Performing Rollback on Active/Standby
 
WARNING: Found 55 disjoint TDL objects.
[R0] Rollback package(s) on R0
--- Starting rollback impact ---

Changes that are part of this rollback
Current : rp 0 0 rp_boot cat9k-rpboot.17.04.01.SPA.pkg
Current : rp 1 0 rp_boot cat9k-rpboot.17.04.01.SPA.pkg
Replacement: rp 0 0 rp_boot cat9k-rpboot.17.03.01.SPA.pkg
Replacement: rp 1 0 rp_boot cat9k-rpboot.17.03.01.SPA.pkg
Current : cc 0  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 0  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 0  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 1  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 1  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 1  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 10 0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 10 0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 10 0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 2  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 2  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 2  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 3  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 3  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 3  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 4  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 4  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 4  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 5  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 5  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 5  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 6  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 6  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 6  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 7  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 7  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 7  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 8  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 8  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 8  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : cc 9  0 cc_srdriver cat9k-cc_srdriver.17.04.01.SPA.pkg
Current : cc 9  0 cc cat9k-sipbase.17.04.01.SPA.pkg
Current : cc 9  0 cc_spa cat9k-sipspa.17.04.01.SPA.pkg
Current : fp 0  0 fp cat9k-espbase.17.04.01.SPA.pkg
Current : fp 1  0 fp cat9k-espbase.17.04.01.SPA.pkg
Current : rp 0  0 guestshell cat9k-guestshell.17.04.01.SPA.pkg
Current : rp 0  0 rp_base cat9k-rpbase.17.04.01.SPA.pkg
Current : rp 0  0 rp_daemons cat9k-rpbase.17.04.01.SPA.pkg
Current : rp 0  0 rp_iosd cat9k-rpbase.17.04.01.SPA.pkg
Current : rp 0  0 rp_security cat9k-rpbase.17.04.01.SPA.pkg
Current : rp 0  0 rp_webui cat9k-webui.17.04.01.SPA.pkg
Current : rp 0  0 rp_wlc cat9k-wlc.17.04.01.SPA.pkg
Current : rp 0  0 srdriver cat9k-srdriver.17.04.01.SPA.pkg
Current : rp 1  0 guestshell cat9k-guestshell.17.04.01.SPA.pkg
Current : rp 1  0 rp_base cat9k-rpbase.17.04.01.SPA.pkg
Current : rp 1  0 rp_daemons cat9k-rpbase.17.04.01.SPA.pkg
Current : rp 1  0 rp_iosd cat9k-rpbase.17.04.01.SPA.pkg
Current : rp 1  0 rp_security cat9k-rpbase.17.04.01.SPA.pkg
Current : rp 1  0 rp_webui cat9k-webui.17.04.01.SPA.pkg
Current : rp 1  0 rp_wlc cat9k-wlc.17.04.01.SPA.pkg
Current : rp 1  0 srdriver cat9k-srdriver.17.04.01.SPA.pkg
Replacement: cc 0  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 0  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 0  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 1  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 1  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 1  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 10 0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 10 0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 10 0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 2  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 2  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 2  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 3  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 3  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 3  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 4  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 4  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 4  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 5  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 5  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 5  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 6  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 6  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 6  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 7  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 7  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 7  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 8  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 8  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 8  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: cc 9  0 cc_srdriver cat9k-cc_srdriver.17.03.01.SPA.pkg
Replacement: cc 9  0 cc cat9k-sipbase.17.03.01.SPA.pkg
Replacement: cc 9  0 cc_spa cat9k-sipspa.17.03.01.SPA.pkg
Replacement: fp 0  0 fp cat9k-espbase.17.03.01.SPA.pkg
Replacement: fp 1  0 fp cat9k-espbase.17.03.01.SPA.pkg
Replacement: rp 0  0 guestshell cat9k-guestshell.17.03.01.SPA.pkg
Replacement: rp 0  0 rp_base cat9k-rpbase.17.03.01.SPA.pkg
Replacement: rp 0  0 rp_daemons cat9k-rpbase.17.03.01.SPA.pkg
Replacement: rp 0  0 rp_iosd cat9k-rpbase.17.03.01.SPA.pkg
Replacement: rp 0  0 rp_security cat9k-rpbase.17.03.01.SPA.pkg
Replacement: rp 0  0 rp_webui cat9k-webui.17.03.01.SPA.pkg
Replacement: rp 0  0 srdriver cat9k-srdriver.17.03.01.SPA.pkg
Replacement: rp 1  0 guestshell cat9k-guestshell.17.03.01.SPA.pkg
Replacement: rp 1  0 rp_base cat9k-rpbase.17.03.01.SPA.pkg
Replacement: rp 1  0 rp_daemons cat9k-rpbase.17.03.01.SPA.pkg
Replacement: rp 1  0 rp_iosd cat9k-rpbase.17.03.01.SPA.pkg
Replacement: rp 1  0 rp_security cat9k-rpbase.17.03.01.SPA.pkg
Replacement: rp 1  0 rp_webui cat9k-webui.17.03.01.SPA.pkg
Replacement: rp 1  0 srdriver cat9k-srdriver.17.03.01.SPA.pkg

Finished rollback impact
[R0] Finished Rollback on R0
Checking status of Rollback on [R0]
Rollback: Passed on [R0]
Finished Rollback
 
Install will reload the system now!
SUCCESS: install_rollback Fri 13 Nov 14:26:35 UTC 2020
 
Switch#
*Nov 13 14:26:35.880: %IOSXE-5-PLATFORM: R0/0: Nov 13 14:26:35 install_engine.sh: %INSTALL-5-INSTALL_COMPLETED_INFO: Completed install rollback PACKAGE
*Nov 13 14:26:37.740: %IOSXE_OIR-6-REMCARD: Card (rp) removed from slot R1
*Nov 13 14:26:39.253: %IOSXE_OIR-6-INSCARD: Card (rp) inserted in slot R1Nov 2 14:26:5
 
Initializing Hardware...

System Bootstrap, Version 17.3.1r
Compiled Tue 07/07/2020 10:19:23.77 by rel

Current image running:
Primary Rommon Image
 
Last reset cause: SoftwareResetTrig
C9400-SUP-1 platform with 16777216 Kbytes of main memory
 
Preparing to autoboot. [Press Ctrl-C to interrupt] 0
attempting to boot from [bootflash:packages.conf]
 
Located file packages.conf
#
#################################################################################################################################################################################################################################################################################################
 
Warning: ignoring ROMMON var "BOOT_PARAM"
Warning: ignoring ROMMON var "USER_BOOT_PARAM"
 
Restricted Rights Legend
 
Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.
 
cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706
Cisco IOS XE Software, Version 17.03.01
Cisco IOS Software [Amsterdam], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.03.1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2019 by Cisco Systems, Inc.
Compiled Mon 27-Mar-20 23:25 by mcpre
 
Cisco IOS-XE software, Copyright (c) 2005-2017 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0. For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.

FIPS: Flash Key Check : Begin
FIPS: Flash Key Check : End, Not Found, FIPS Mode Not Enabled
 
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
 
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
 
If you require further assistance please contact us by sending email to
export@cisco.com.
 
cisco C9410R (X86) processor (revision V00) with 868521K/6147K bytes of memory.
Processor board ID FXS2118Q1GM
312 Gigabit Ethernet interfaces
40 Ten Gigabit Ethernet interfaces
4 Forty Gigabit Ethernet interfaces
32768K bytes of non-volatile configuration memory.
15958516K bytes of physical memory.
11161600K bytes of Bootflash at bootflash:.
1638400K bytes of Crash Files at crashinfo:.
0K bytes of WebUI ODM Files at webui:.
 
%INIT: waited 0 seconds for NVRAM to be available
 
Press RETURN to get started!

 
Step 5

Verify version

show version

After the image boots up, use this command to verify the version of the new image.

Note 
When you downgrade the software image, the ROMMON version does not downgrade. It remains updated.
The following sample output of the show version command displays the Cisco IOS XE Amsterdam 17.3.1 image on the device:
Switch# show version
Cisco IOS XE Software, Version 17.03.01
Cisco IOS Software [Amsterdam], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.3.1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2019 by Cisco Systems, Inc.
<output truncated>

Upgrading the Complex Programmable Logic Device Version

This refers to hardware-programmable firmware. The Complex Programmable Logic Device (CPLD) version upgrade process must be completed after upgrading the software image.


Note

No CPLD upgrades are required in Cisco IOS XE Bengaluru 17.4.1.

CPLD version: 19082605


Licensing

This section provides information about the licensing packages for features available on Cisco Catalyst 9000 Series Switches.

License Levels

The software features available on Cisco Catalyst 9400 Series Switches fall under these base or add-on license levels.

Base Licenses

  • Network Essentials

  • Network Advantage—Includes features available with the Network Essentials license and more.

Add-On Licenses

Add-On Licenses require a Network Essentials or Network Advantage as a pre-requisite. The features available with add-on license levels provide Cisco innovations on the switch, as well as on the Cisco Digital Network Architecture Center (Cisco DNA Center).

  • DNA Essentials

  • DNA Advantage— Includes features available with the DNA Essentials license and more.

To find information about platform support and to know which license levels a feature is available with, use Cisco Feature Navigator. To access Cisco Feature Navigator, go to https://cfnng.cisco.com. An account on cisco.com is not required.

Available Licensing Models and Configuration Information

  • Cisco IOS XE Amsterdam 17.3.1 and earlier: Smart Licensing is the default and the only supported method to manage licenses.

    In the software configuration guide of the required release, see System ManagementConfiguring Smart Licensing.

  • Cisco IOS XE Amsterdam 17.3.2a and later: Smart Licensing Using Policy, which is an enhanced version of Smart Licensing, is the default and the only supported method to manage licenses.

    In the software configuration guide of the required release (17.3.x onwards), see System ManagementSmart Licensing Using Policy.

For a more detailed overview on Cisco Licensing, go to cisco.com/go/licensingguide.

License Levels - Usage Guidelines

  • The duration or term for which a purchased license is valid:

    Smart Licensing Using Policy

    Smart Licensing

    • Perpetual: There is no expiration date for such a license.

    • Subscription: The license is valid only until a certain date (for a three, five, or seven year period).

    • Permanent: for a license level, and without an expiration date.

    • Term: for a license level, and for a three, five, or seven year period.

    • Evaluation: a license that is not registered.

  • Base licenses (Network Essentials and Network-Advantage) are ordered and fulfilled only with a perpetual or permanent license type.

  • Add-on licenses (DNA Essentials and DNA Advantage) are ordered and fulfilled only with a subscription or term license type.

  • An add-on license level is included when you choose a network license level. If you use DNA features, renew the license before term expiry, to continue using it, or deactivate the add-on license and then reload the switch to continue operating with the base license capabilities.

  • When ordering an add-on license with a base license, note the combinations that are permitted and those that are not permitted:

    Table 1. Permitted Combinations

    DNA Essentials

    DNA Advantage

    Network Essentials

    Yes

    No

    Network Advantage

    Yes5

    Yes

    5 You will be able to purchase this combination only at the time of the DNA license renewal and not when you purchase DNA-Essentials the first time.
  • Evaluation licenses cannot be ordered. They are not tracked via Cisco Smart Software Manager and expire after a 90-day period. Evaluation licenses can be used only once on the switch and cannot be regenerated. Warning system messages about an evaluation license expiry are generated only 275 days after expiration and every week thereafter. An expired evaluation license cannot be reactivated after reload. This applies only to Smart Licensing. The notion of evaluation licenses does not apply to Smart Licensing Using Policy.

Scaling Guidelines

Limitations and Restrictions

  • Control Plane Policing (CoPP)—The show run command does not display information about classes configured under system-cpp policy, when they are left at default values. Use the show policy-map system-cpp-policy or the show policy-map control-plane commands in privileged EXEC mode instead.

  • Cisco TrustSec restrictions—Cisco TrustSec can be configured only on physical interfaces, not on logical interfaces.

  • Flexible NetFlow limitations

    • You cannot configure NetFlow export using the Ethernet Management port (GigabitEthernet0/0).

    • You can not configure a flow monitor on logical interfaces, such as layer 2 port-channels, loopback, tunnels.

    • You can not configure multiple flow monitors of same type (ipv4, ipv6 or datalink) on the same interface for same direction.

  • Hardware limitations—When you use Cisco QSFP-4SFP10G-CUxM Direct-Attach Copper Cables, autonegotiation is enabled by default. If the other end of the line does not support autonegotation, the link does not come up.

  • Interoperability limitations—When you use Cisco QSFP-4SFP10G-CUxM Direct-Attach Copper Cables, if one end of the 40G link is a Catalyst 9400 Series Switch and the other end is a Catalyst 9500 Series Switch, the link does not come up, or comes up on one side and stays down on the other. To avoid this interoperability issue between devices, apply the the speed nonegotiate command on the Catalyst 9500 Series Switch interface. This command disables autonegotiation and brings the link up. To restore autonegotiation, use the no speed nonegotiation command.

  • In-Service Software Upgrade (ISSU)

    • ISSU from Cisco IOS XE Fuji 16.9.x to Cisco IOS XE Gibraltar 16.10.x or to Cisco IOS XE Gibraltar 16.11.x is not supported. This applies to both a single and dual supervisor module setup.

    • While performing ISSU from Cisco IOS XE Fuji 16.9.x to Cisco IOS XE Gibraltar 16.12.x, if interface-id snmp-if-index command is not configured with OSPFv3, packet loss can occur. Configure the interface-id snmp-if-index command either during the maintenance window or after isolating the device (by using maintenance mode feature) from the network before doing the ISSU.

    • While ISSU allows you to perform upgrades with zero downtime, we recommend you to do so during a maintenance window only.

    • If a new feature introduced in a software release requires a change in configuration, the feature should not be enabled during ISSU.

    • If a feature is not available in the downgraded version of a software image, the feature should be disabled before initiating ISSU.

  • M.2 SATA SSD drive: With bootloader version 16.6.2r, you cannot access the M.2 SATA SSD drive at the ROMMON prompt (rommon> dir disk0). The system displays an error message indicating that the corresponding file system protocol is not found on the device. The only way to access the drive when on bootloader version 16.6.2r, is through the Cisco IOS prompt, after boot up.

  • No service password recovery—With ROMMON versions R16.6.1r and R16.6.2r, the 'no service password-recovery' feature is not available.

  • QoS restrictions

    • When configuring QoS queuing policy, the sum of the queuing buffer should not exceed 100%.

    • For QoS policies, only switched virtual interfaces (SVI) are supported for logical interfaces.

    • QoS policies are not supported for port-channel interfaces, tunnel interfaces, and other logical interfaces.

    • Stack Queuing and Scheduling (SQS) drops CPU bound packets exceeding 1.4 Gbps.

  • Redundancy—The supervisor module (hardware) supports redundancy. Software redundancy is supported starting with Cisco IOS XE Everest 16.6.2. However, the associated route processor redundancy (RPR) feature is not supported.

    Before performing a switchover, use the show redundancy , show platform , and show platform software iomd redundancy commands to ensure that both the SSOs have formed and that the IOMD process is completed.

    In the following sample output for the show redundancy , note that both the SSOs have formed.
    Switch# show redundancy
    Redundant System Information :
    ------------------------------
    Available system uptime = 3 hours, 30 minutes
    Switchovers system experienced = 2
    Standby failures = 0
    Last switchover reason = active unit removed
    
    Hardware Mode = Duplex
    Configured Redundancy Mode = sso
    Operating Redundancy Mode = sso
    Maintenance Mode = Disabled
    Communications = Up
    
    Current Processor Information :
    -------------------------------
    Active Location = slot 3
    Current Software state = ACTIVE
    Uptime in current state = 2 hours, 57 minutes
    Image Version = Cisco IOS Software [Fuji], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 16.8.1, RELEASE SOFTWARE (fc3)
    Technical Support: http://www.cisco.com/techsupport
    Copyright (c) 1986-2018 by Cisco Systems, Inc.
    Compiled Tue 27-Mar-18 13:43 by mcpre
    BOOT = bootflash:packages.conf;
    CONFIG_FILE =
    Configuration register = 0x1822
    
    Peer Processor Information :
    ----------------------------
    Standby Location = slot 4
    Current Software state = STANDBY HOT
    Uptime in current state = 2 hours, 47 minutes
    Image Version = Cisco IOS Software [Fuji], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 16.8.1, RELEASE SOFTWARE (fc3)
    Technical Support: http://www.cisco.com/techsupport
    Copyright (c) 1986-2018 by Cisco Systems, Inc.
    Compiled Tue 27-Mar-18 13:43 by mcpre
    BOOT = bootflash:packages.conf;
    CONFIG_FILE =
    Configuration register = 0x1822
    
    
    In the following sample output for the show platform software iomd redundancy command, note that both SSOs have formed and the HA_STATE field is ready.
    Switch# show platform software iomd redundancy
    Configured Redundancy Mode = sso
    Operating Redundancy Mode = sso
    Local RF state = ACTIVE
    Peer RF state = STANDBY HOT
     
    slot  PSM STATE   SPA INTF   HA_STATE HA_ACTIVE
       1     ready   started     ready    00:01:16
       2     ready   started     ready    00:01:22
       3     ready   started     ready    00:01:27 ***active RP
       4     ready   started     ready    00:01:27
    <output truncated>
    In the following sample output for the show platform command, note that the State for all the linecards and supervisor modules is ok. This indicates that the IOMD processes are completed.
    Switch# show platform
    Chassis type: C9407R             
     
    Slot      Type                State                 Insert time (ago)
    --------- ------------------- --------------------- -----------------
    1         C9400-LC-24XS       ok                    3d09h        
    2         C9400-LC-48U        ok                    3d09h        
    R0        C9400-SUP-1         ok, active            3d09h        
    R1        C9400-SUP-1         ok, standby           3d09h        
    P1        C9400-PWR-3200AC    ok                    3d08h        
    P2        C9400-PWR-3200AC    ok                    3d08h        
    P17       C9407-FAN           ok                    3d08h  
    <output truncated>
  • Secure Shell (SSH)

    • Use SSH Version 2. SSH Version 1 is not supported.

    • When the device is running SCP and SSH cryptographic operations, expect high CPU until the SCP read process is completed. SCP supports file transfers between hosts on a network and uses SSH for the transfer.

      Since SCP and SSH operations are currently not supported on the hardware crypto engine, running encryption and decryption process in software causes high CPU. The SCP and SSH processes can show as much as 40 or 50 percent CPU usage, but they do not cause the device to shutdown.

  • TACACS legacy command: Do not configure the legacy tacacs-server host command; this command is deprecated. If the software version running on your device is Cisco IOS XE Gibraltar 16.12.2 or a later release, using the legacy command can cause authentication failures. Use the tacacs server command in global configuration mode.

  • Uplink Symmetry—When a redundant supervisor module is inserted, we recommend that you have symmetric uplinks, to minimize packet loss during a switchover.

    Uplinks are said to be in symmetry when the same interface on both supervisor modules have the same type of transceiver module. For example, a TenGigabitEthernet interface with no transceiver installed operates at a default 10G mode; if the matching interface of the other supervisor has a 10G transceiver, then they are in symmetry. Symmetry provides the best SWO packet loss and user experience.

    Asymmetric uplinks have at least one or more pairs of interfaces in one supervisor not matching the transceiver speed of the other supervisor.

  • USB Authentication—When you connect a Cisco USB drive to the switch, the switch tries to authenticate the drive against an existing encrypted preshared key. Since the USB drive does not send a key for authentication, the following message is displayed on the console when you enter password encryption aes command:
    Device(config)# password encryption aes
    Master key change notification called without new or old key
  • YANG data modeling limitation—A maximum of 20 simultaneous NETCONF sessions are supported.

  • Embedded Event Manager—Identity event detector is not supported on Embedded Event Manager.

Caveats

Caveats describe unexpected behavior in Cisco IOS-XE releases. Caveats listed as open in a prior release are carried forward to the next release as either open or resolved.

Cisco Bug Search Tool

The Cisco Bug Search Tool (BST) allows partners and customers to search for software bugs based on product, release, and keyword, and aggregates key data such as bug details, product, and version. The BST is designed to improve the effectiveness in network risk management and device troubleshooting. The tool has a provision to filter bugs based on credentials to provide external and internal bug views for the search input.

To view the details of a caveat, click on the identifier.

Open Caveats in Cisco IOS XE Bengaluru 17.4.x

Identifier

Description

CSCvv60320

Cat9400: Line protocol flap observed in specific interface frequently on C9400-LC-24S/48S

CSCvv91619

Crash seen after removing/defaulting REP interfaces using range config

CSCvw17155

Notification timer Expired for RF Client: Inline Power rf client(505)

CSCvw17869

Uplink port goes down after "no switchport" is issued

CSCvw67128

Purchase info should be protected and shouldn't be able to erase.

CSCvx99784

CPU drop was seen when more than 1.4Gbps traffic come to CPU

Resolved Caveats in Cisco IOS XE Bengaluru 17.4.1

Identifier

Description

CSCvt50788

Cat9400 mGig interop issues with other mGig devices causes link flaps

CSCvu14246

multichassis etherchannel with macsec goes down when stack standby removed

CSCvw31564

When ip tcp adjust-mss is enabled, TCP packets that are already fragmented will get dropped

Troubleshooting

For the most up-to-date, detailed troubleshooting information, see the Cisco TAC website at this URL:

https://www.cisco.com/en/US/support/index.html

Go to Product Support and select your product from the list or enter the name of your product. Look under Troubleshoot and Alerts, to find information for the problem that you are experiencing.

Related Documentation

Information about Cisco IOS XE at this URL: https://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-xe/index.html

All support documentation for Cisco Catalyst 9400 Series Switches is at this URL: https://www.cisco.com/c/en/us/support/switches/catalyst-9400-series-switches/tsd-products-support-series-home.html

Cisco Validated Designs documents at this URL: https://www.cisco.com/go/designzone

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: http://www.cisco.com/go/mibs

Communications, Services, and Additional Information

  • To receive timely, relevant information from Cisco, sign up at Cisco Profile Manager.

  • To get the business impact you’re looking for with the technologies that matter, visit Cisco Services.

  • To submit a service request, visit Cisco Support.

  • To discover and browse secure, validated enterprise-class apps, products, solutions and services, visit Cisco Marketplace.

  • To obtain general networking, training, and certification titles, visit Cisco Press.

  • To find warranty information for a specific product or product family, access Cisco Warranty Finder.

Cisco Bug Search Tool

Cisco Bug Search Tool (BST) is a web-based tool that acts as a gateway to the Cisco bug tracking system that maintains a comprehensive list of defects and vulnerabilities in Cisco products and software. BST provides you with detailed defect information about your products and software.