Cisco IOS-XE Release Schedule

Cisco IOS-XE releases generally follow the schedule as follows:

■Standard Maintenance (SM) Release - Defect fixes for 6 months.

■Extended Maintenance (EM) Release - Defect fixes for 24 months.

There are typically 3 major releases each year:

■End of March - Standard Maintenance

■End of July - Extended Maintenance

■End of November - Standard Maintenance

Cisco IOS-XE Release 17.1.1

Cisco IOS-XE Release 17.1.1 includes the following Cisco image:

■c6300-universalk9.17.01.01.SPA.bin

The latest software downloads for the ESR6300 can be found at:

https://software.cisco.com/download/specialrelease/179a9f8ddc27f34e8c84d1e6692c3b51

Click on the ESR6300 link to take you to the specific software you are looking for.

The following features are not supported on the ESR6300 with software release 17.1.1:

■No support for MacSec or DLEP in this release. (MQC: modular quality of service command line).

■Layer 2 COS to DSCP mapping does not work due to no ASIC chipset support for the feature.

■Copper FE SFPs are not supported on the ESR6300.

■Copper GE SFPs are only supported in config terminal > service internal > service unsupported-transceiver mode.

■Cisco does not claim IP Mobility for Ethernet support on the ESR6300.

■Auto-negotiation for 10Mbps, 100Mbps, 1000Mbps in full-duplex mode is supported. For half duplex, support is only on 10Mbps and 100Mbps.

■IOx Application access to serial port or USB-serial  is not supported.

■Booting the golden configuration from a USB is NOT supported in this release.

■Refer to the Cisco Approved Vendor List (AVL]) for Cisco USBs. Kingston USB 3.0 works as well. Ensure the USB has a single partition and ext2, Fat16, or Fat32 format only.

■Cellular functionality is not supported.

■Radio Aware Routing is not supported.

■There is no WebUI support for Day 0 or Day 1 configuration

■For Security: No support for TLS, TrustSec, MacSec, CWS [Cloud Web Security], IDS/IPS.

This release has the following limitations or deviations for expected behavior:

■The WebUI Licensing Page is unsupported for release 17.1.1. For all licensing configuration, please use CLI mode or CSSM.

■In the Web User Interface (WebUI), there are two known issues where erroneous information is displayed. In both of these cases, the information is present in the WebUI even though the functionality is NOT supported on the ESR6300.

–Under Configuration > Security > Threat Defense > snort there is a RAM and DISK size prerequisite check that fails.

–Under Configuration > Security > there is a category for Trustsec.

These are both cosmetic issues due to the features being unavailable in the 17.1.1 release.

■The IOS boot system setting allows users to specify any flash-based storage URL for IOS image booting.

The rommon on the ESR6300 does not expose the non-IOX msata partition, therefore auto-booting from mSATA will not work even if it is configured in IOS.

Example : Users must not configure a boot system setting as follows:

■Receive a message 'unable to open bootflash:golden.bin (14)' during bootup.

Example: Pushing the reset button displays the unable to open message.

This message is intended by design to inform the user they have not setup a golden.bin config file.

Open Caveats

■ CSCvu75971

Benign bootup warning messages appear on the console.

Symptom : The following messages are seen during bootup:

Workaround : Ignore these messages. They are not indicating any problem, and will be removed in a future release.

■ CSCvr92850

IOT-17.1.1 WebUI dhcp pool is still present even after reload.

Symptoms : The WebUI dhcp pool is saved in the startup-config along with the configuration that has been pushed from WebUI. Once the device is reloaded after pushing the configuration, the device will still have the day0 webui-dhcp pool created by PNP.

Cause : WebUI saves the configuration before the PNP cleans up the day0 webui-dhcp pool created by PNP code.

Workaround : Once the configuration is pushed from the WebUI, wait for 2 minutes and then explicitly issue a write memory command by entering console to save the configuration. This will allow PNP to clear the day0 WebUI configuration that was created by PNP and save the configuration just pushed through WebUI.

Resolved Caveats

Since this is the initial release of this product, there are no resolved caveats.

Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.

Model Driven Telemetry - gRPC Dial-Out: Expands existing Model Driven Telemetry capabilities with the addition of gRPC protocol support and Dial-Out (configured) telemetry subscriptions.

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

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.

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