First Published: March 30, 2020

Last Updated: June 19, 2020

Release Notes for Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Amsterdam 17.2.1

Introduction to Cisco Embedded Wireless Controller on Catalyst Access Points

The Cisco Embedded Wireless Controller on Catalyst Access Points is a version of the Cisco IOS XE-based controller software on Catalyst access points. In this solution, a Catalyst access point (AP) that is running the Cisco Embedded Wireless Controller on Catalyst Access Points software, is designated as the primary AP. Other APs, referred to as subordinate APs, associate to this primary AP.

The Cisco Embedded Wireless Controller on Catalyst Access Points provides enterprise-level WLAN features while maintaining operational simplicity and affordability. This solution is targeted at small and medium-sized business (SMB) customers or distributed enterprises, and can be run at single site deployments.

  • The controllers come with high availability (HA) and seamless software updates. This keeps your services on always, both during planned and unplanned events.

  • The deployment can be managed using a mobile application, Cisco Digital Network Architecture (DNA) Center, Netconf/Restconf, web-based GUI, or CLI.

What's New in Cisco IOS XE Amsterdam 17.2.1a

There are no new features or enhancements in this release.

What's New in Cisco IOS XE Amsterdam 17.2.1

This section provides information about the new features and enhancements in this release.

Cisco Workgroup Bridges Client Support: A workgroup bridge (WGB) is a mode that can be configured on Cisco Wave 2 APs such as Cisco Aironet 2800 Series APs, Cisco Aironet 3800 Series APs, and Cisco Aironet 1560 Series APs, to provide wireless connectivity to a lightweight AP on behalf of clients that are connected by Ethernet to the WGB access point.

Flexible NetFlow Exporter Support: Flexible Netflow (FnF) Exporter is supported on Embedded Wireless Controller.

Web UI features:

WLAN Web UI Simplification: From Cisco IOS XE Amsterdam 17.2.1 onwards, the Web UI for WLAN creation is simplified. Only mandatory attributes are displayed under the Basic Wireless Setup. The association of the AAA server per WLAN also has been simplified.

New and Modified Commands

The following commands are introduced in the Embedded Wireless Controller, in this release:

Configuration Commands:

  • ccx aironet-iesupport

  • exporter default-flow-exporter

  • flow exporter flow-export-name

  • flow monitor monitor-name

  • ipv4 flow monitor monitor-name input

  • ipv4 flow monitor monitor-name output

  • ipv6 flow monitor monitor-name input

  • ipv6 flow monitor monitor-name output

  • record wireless avc basic

  • transport udp port-value

Show Commands:

  • show platform software wlavc status cp-exporter

  • show wireless wgb client mac-address MAC-address detail

  • show wireless wgb mac-address MAC-address detail

  • show wireless wgb summary

Behavior Change

  • SMU: AP Service Pack APSP is not supported in Cisco IOS XE Amsterdam 17.2.1.

Supported Cisco Access Point Platforms

The following Cisco access points are supported in the Cisco Embedded Wireless Controller on Catalyst Access Points network. Note that the APs listed as primary APs can also function as subordinate APs.

Table 1. Cisco APs Supported in Cisco Embedded Wireless Controller on Catalyst Access Points

Primary AP

Subordinate AP

Cisco Catalyst 9115 Series

Cisco Catalyst 9117 Series

Cisco Catalyst 9120 Series

Cisco Catalyst 9130 Series

Cisco Aironet 1540 Series

Cisco Aironet 1560 Series

Cisco Aironet 1815i

Cisco Aironet 1815w

Cisco Aironet 1830 Series

Cisco Aironet 1840 Series

Cisco Aironet 1850 Series

Cisco Aironet 2800 Series

Cisco Aironet 3800 Series

Cisco Aironet 4800 Series

Cisco Catalyst 9115 Series

Cisco Catalyst 9117 Series

Cisco Catalyst 9120 Series

Cisco Catalyst 9130 Series
Table 2. Image Types and Supported APs in Cisco Embedded Wireless Controller on Catalyst Access Points

Image Type

Supported APs

ap1g4

Cisco Aironet 1810 Series

Cisco Aironet 1830 Series

Cisco Aironet 1850 Series

ap1g5

Cisco Aironet 1815i

Cisco Aironet 1815w

Cisco Aironet 1540 Series

Cisco Aironet 1840 Series

ap1g6

Cisco Catalyst 9117 Series

ap1g6a

Cisco Catalyst 9130 Series

ap1g7

Cisco Catalyst 9115 Series

Cisco Catalyst 9120 Series

ap3g3

Cisco Aironet 2800 Series

Cisco Aironet 3800 Series

Cisco Aironet 4800 Series

Cisco Aironet 1560 Series

Maximum APs and Clients Supported

Table 3. Scale Supported in Cisco EWC Network

Primary AP Model

Maximum APs Supported

Maximum Clients Supported

Cisco Catalyst 9105 AWI

50

1000

Cisco Catalyst 9115 Series

50

1000

Cisco Catalyst 9117 Series

50

1000

Cisco Catalyst 9120 Series

100

2000

Cisco Catalyst 9130 Series

100

2000

Note

If 25 to 100 APs have joined the EWC network, the maximum clients on the EWC internal AP is limited to 20.

Compatibility Matrix

The following table provides software compatibility information:

Table 4. Compatibility Information

Cisco Embedded Wireless Controller on Catalyst Access Points

Cisco ISE

Cisco CMX

Cisco DNA Center

Amsterdam 17.2.1a

Amsterdam 17.2.1

2.6

2.4

2.3

10.6.2

10.6

10.5.1

1.3.3.0

Supported Browsers and Operating Systems for Web UI


Note

The following list of Supported Browsers and Operating Systems is not comprehensive at the time of writing this document and the behavior of various browser for accessing the GUI of the EWC is as listed below.

Table 5. Supported Browsers and Operating Systems

Browser

Version

Operating System

Status

Workaround

Google Chrome

77.0.3865.120

macOS Mojave Version 10.14.6

Works

Proceed through the browser warning.

Safari

13.0.2 (14608.2.40.1.3)

macOS Mojave Version 10.14.6

Works

Proceed through the browser warning.

Mozilla Firefox

69.0.1

macOS Mojave Version 10.14.6

Works only if exception is added.

Set the exception.

Mozilla Firefox

69.0.3

macOS Mojave Version 10.14.6

Works only if exception is added.

Set the exception.

Google Chrome

77.0.3865.90

Windows 10 Version 1903 (OS Build 18362.267)

Works

Proceed through the browser warning.

Microsoft Edge

44.18362.267.0

Windows 10 Version 1903 (OS Build 18362.267)

Works

Proceed through the browser warning.

Mozilla Firefox

68.0.2

Windows 10 Version 1903 (OS Build 18362.267)

Works

Proceed through the browser warning.

Mozilla Firefox

69.0.3

Windows 10 Version 1903 (OS Build 18362.267)

Works only if exception is added.

Set the exception.

Google Chrome

78.0.3904.108

macOS Catalina 10.15.1

Does not work

NA

Upgrading the Controller Software

This section covers the various aspects of upgrading the controller software.


Note

Before converting from CAPWAP to embedded wireless controller (EWC), ensure that you upgrade the corresponding AP with the CAPWAP image in Cisco AireOS Release 8.10.105.0. If this upgrade is not performed, the conversion will fail.

Finding the Software Version

The following table lists the Cisco IOS XE 17.2.1 software for Cisco Embedded Wireless Controller on Catalyst Access Points.

Choose the appropriate AP software based on the following:

  • Cisco Embedded Wireless Controller on Catalyst Access Points software to be used for converting the AP from an unified wireless network CAPWAP lightweight AP to a Cisco Embedded Wireless Controller on Catalyst Access Points-capable AP (primary AP)

  • AP software image bundle to be used either for upgrading the Cisco Embedded Wireless Controller on Catalyst Access Points software on the primary AP or for updating the software on the subordinate APs or both

Prior to ordering Cisco APs, see the corresponding ordering guide for your Catalyst or Aironet access point.

Table 6. Cisco Embedded Wireless Controller on Catalyst Access Points Software

Primary AP

AP Software for Conversion from CAPWAP to Cisco EWC

AP Software Image Bundle for Upgrade

AP Software in the Bundle

Cisco Catalyst 9115 Series

C9800-AP-universalk9.17.02.01.zip

C9800-AP-universalk9.17.02.01.zip

ap1g7

Cisco Catalyst 9117 Series

C9800-AP-universalk9.17.02.01.zip

C9800-AP-universalk9.17.02.01.zip

ap1g6

Cisco Catalyst 9120 Series

C9800-AP-universalk9.17.02.01.zip

C9800-AP-universalk9.17.02.01.zip

ap1g7

Cisco Catalyst 9130 Series

C9800-AP-universalk9.17.02.01.zip

C9800-AP-universalk9.17.02.01.zip

ap1g6a

Guidelines and Restrictions

Internet Group Management Protocol (IGMP)v3 is not supported on Cisco Aironet Wave 2 APs.

Embedded Wireless Controller SNMP configuration is supported in DNAC.

High memory usage on AP running Embedded Wireless Controller. Enabling crash kernel on the AP consumes additional memory on the AP. Hence, if crash kernel is enabled, the overall memory usage of the device will increase and will impact the scale numbers. On Cisco Catalyst 9130 Series Access Points, the memory consumption is a high of 128 MB.

Interoperability with Clients

This section describes the interoperability of the controller software with client devices.

The following table describes the configurations used for testing client devices.

Table 7. Test Configuration for Interoperability

Hardware or Software Parameter

Hardware or Software Type

Release

Cisco IOS XE Amsterdam 17.2.1

Access Points

  • Cisco Aironet Series Access Points

    • 1540

    • 1560

    • 1815i

    • 1815w

    • 1830

    • 1840

    • 1850

    • 2800

    • 3800

    • 4800

  • Cisco Catalyst 9115AX Access Points

  • Cisco Catalyst 9117AX Access Points

  • Cisco Catalyst 9120AX Access Points

  • Cisco Catalyst 9130AX Access Points

Radio

  • 802.11ax

  • 802.11ac

  • 802.11a

  • 802.11g

  • 802.11n (2.4 GHz or 5 GHz)

Security

Open, PSK (WPA2-AES), 802.1X (WPA2-AES) (EAP-FAST, EAP-TLS), WPA3.

Cisco ISE

See Compatibility Matrix.

Types of tests

Connectivity, traffic (ICMP), and roaming between two APs

The following table lists the client types on which the tests were conducted. Client types included laptops, hand-held devices, phones, and printers.

Table 8. Client Types

Client Type and Name

Driver / Software Version

Wi-Fi 6 Devices (Mobile Phone and Laptop)
Apple iPhone 11 iOS 14.1

Apple iPhone SE 2020

 iOS 14.1
Dell Intel AX1650w Windows 10 ( 21.90.2.1)
DELL LATITUDE 5491 (Intel AX200) Windows 10 Pro (21.40.2)
Samsung S20 Android 10
Samsung S10 (SM-G973U1) Android 9.0 (One UI 1.1)
Samsung S10e (SM-G970U1) Android 9.0 (One UI 1.1)
Samsung Galaxy S10+ Android 9.0

Samsung Galaxy Fold 2

 Android 10

Samsung Galaxy Flip Z

 Android 10

Samsung Note 20

 Android 10

Laptops
Acer Aspire E 15 E5-573-3870 (Qualcomm Atheros QCA9377) Windows 10 Pro (12.0.0.832)
Apple Macbook Air 11 inch OS Sierra 10.12.6
Apple Macbook Air 13 inch OS Catalina 10.15.4
Apple Macbook Air 13 inch OS High Sierra 10.13.4
Macbook Pro Retina OS Mojave 10.14.3
Macbook Pro Retina 13 inch early 2015 OS Mojave 10.14.3

Dell Inspiron 2020 Chromebook

Chrome OS 75.0.3770.129

Google Pixelbook Go

Chrome OS 84.0.4147.136

HP chromebook 11a

Chrome OS 76.0.3809.136

Samsung Chromebook 4+

Chrome OS 77.0.3865.105
DELL Latitude 3480  (Qualcomm DELL wireless 1820) Win 10 Pro (12.0.0.242)
DELL Inspiron 15-7569 (Intel Dual Band Wireless-AC 3165) Windows 10 Home (18.32.0.5)
DELL Latitude E5540 (Intel Dual Band Wireless AC7260) Windows 7 Professional (21.10.1)
DELL XPS 12 v9250 (Intel Dual Band Wireless AC 8260 ) Windows 10 (19.50.1.6)
DELL Latitude 5491 (Intel AX200) Windows 10 Pro (21.40.2)
DELL XPS Latitude12 9250 (Intel Dual Band Wireless AC 8260) Windows 10 Home (21.40.0)

Lenovo Yoga C630 Snapdragon 850 (Qualcomm AC 2x2 Svc)

Windows 10(1.0.10440.0)
Lenovo Thinkpad Yoga 460 (Intel Dual Band Wireless-AC 9260) Windows 10 Pro ( 21.40.0)
Note 
For clients using Intel wireless cards, we recommend you to update to the latest Intel wireless drivers if advertised SSIDs are not visible.

Tablets
Apple iPad Pro iOS 13.5
Apple iPad Air2 MGLW2LL/A iOS 12.4.1
Apple iPad Mini 4 9.0.1 MK872LL/A iOS 11.4.1
Apple iPad Mini 2 ME279LL/A iOS 12.0
Microsoft Surface Pro 3 – 11ac Qualcomm Atheros QCA61x4A
Microsoft Surface Pro 3 – 11ax Intel AX201 chipset. Driver v21.40.1.3
Microsoft Surface Pro 7 – 11ax Intel Wi-Fi chip (HarrisonPeak AX201) (11ax, WPA3)
Microsoft Surface Pro X – 11ac & WPA3 WCN3998 Wi-Fi Chip (11ac, WPA3)

Mobile Phones
Apple iPhone 5 iOS 12.4.1
Apple iPhone 6s iOS 13.5
Apple iPhone 8 iOS 13.5
Apple iPhone X MQA52LL/A iOS 13.5
Apple iPhone 11 iOS 14.1
Apple iPhone SE MLY12LL/A iOS 11.3
ASCOM SH1 Myco2 Build 2.1
ASCOM SH1 Myco2 Build 4.5
ASCOM Myco 3 v1.2.3 Android 8.1
Drager Delta VG9.0.2
Drager M300.3 VG2.4
Drager M300.4 VG2.4
Drager M540 DG6.0.2 (1.2.6)
Google Pixel 2 Android 10
Google Pixel 3 Android 11

Google Pixel 3a

Android 11
Google Pixel 4 Android 11
Huawei Mate 20 pro Android 9.0
Huawei P20 Pro Android 9.0

Huawei P40

Android 10
LG v40 ThinQ Android 9.0

One Plus 8

Android 10

Oppo Find X2

Android 10

Redmi K20 Pro

Android 10
Samsung Galaxy S7 Andriod 6.0.1
Samsung Galaxy S7 SM - G930F Android 8.0
Samsung Galaxy S8 Android 8.0
Samsung Galaxy S9+ - G965U1 Android 9.0
Samsung Galaxy SM - G950U Android 7.0

Sony Experia 1 ii

Android 10
Sony Experia xz3 Android 9.0

Xiaomi Mi10

Android 10
Spectralink 8744 Android 5.1.1
Spectralink Versity Phones 9540 Android 8.1
Vocera Badges B3000n 4.3.2.5
Vocera Smart Badges V5000 5.0.4.30
Zebra MC40 Android 5.0
Zebra MC40N0 Android Ver: 4.1.1
Zebra MC92N0 Android Ver:  4.4.4
Zebra TC51 Android 7.1.2
Zebra TC52 Android 8.1.0
Zebra TC55 Android 8.1.0
Zebra TC57 Android 8.1.0
Zebra TC70 Android 6.1
Zebra TC75 Android 6.1.1
Printers
Zebra QLn320 Printer LINK OS 6.3
Zebra ZT230 Printer LINK OS 6.3
Zebra ZQ310 Printer LINK OS 6.3
Zebra ZD410 Printer LINK OS 6.3
Zebra ZT410 Printer LINK OS 6.3
Zebra ZQ610 Printer LINK OS 6.3
Zebra ZQ620 Printer LINK OS 6.3

Wireless Module

Intel 11ax 200

 Driver v22.20.0

Intel AC 9260

 Driver v21.40.0

Intel Dual Band Wireless AC 8260

Driver v19.50.1.6

Caveats

Caveats describe unexpected behavior in Cisco IOS releases. Caveats that are listed as Open in a prior release are carried forward to the next release as either Open or Resolved.


Note

All incremental releases will cover fixes from the current release.

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 the corresponding identifier.

Open Caveats for Cisco IOS XE Amsterdam 17.2.1a

Caveat ID

Description

CSCvu00121

Cisco Aironet AP 185x/184x reboots by deadlock triggered kernel panic in radio driver code.

Open Caveats for Cisco IOS XE Amsterdam 17.2.1

Caveat ID

Description

CSCvm75074

Correct the severity level of logs generated by smart-agent from notice to debug.

CSCvt01659

Client traffic is stuck, after controller receives the Change of Authorization (CoA) as part of Local Web Authentication (LWA) and Central Web Authentication (CWA).

CSCvt29596

Current Tx rate for 802.11ax clients are displayed incorrectly on the controller.

CSCvt35141

Deny webauth WLANs from being tagged to authentication servers that has load balancing enabled.

CSCvt35766

Controller is allowing WPA-TKIP + WPA2‚ without any encryption.

CSCvt37835

Client is unable to associate when extended supported rates are used.

CSCvt41035

AP shows incorrect WLAN to VLAN assignment.

CSCvt41053

AP shows incorrect WLAN to VLAN assignment.

CSCvt41519

Controller reloads unexpectedly when an AP with same name of an existing AP joins.

CSCvt46733

Cisco Catalyst 9800 Series Wireless Controller Address Resolution Protocol (ARP) handling design change.

CSCvt47787

Roaming is not successful when NAC is enabled in the policy profile.

CSCvt48319

Remove all client lists from the show tech wireless command output.

CSCvt49983

The show ap auto RF command output is displaying invalid values for some APs.

CSCvt52436

Controller is unable to downgrade license.

CSCvt55482

Controller displays incorrect number of interferers.

Resolved Caveats for Cisco IOS XE Amsterdam 17.2.1a

Caveat ID

Description

CSCvt47413

IW-6300H/1562/2800/3800/4800 series APs are failing DFS compliance.

CSCvt98797

Channel Availability Check (CAC) is skipped after channel change on 2800/3800/4800/1560/IW6300.

CSCvu02495

Wave 2 AP boot failure with message saying bad lzma header and AP unable to boot and join controller.

Resolved Caveats for Cisco IOS XE Amsterdam 17.2.1

Caveat ID

Description

CSCvk79833

Include the show vlan command output in the show tech wireless command output.

CSCvk79834

The show wireless profile policy all command output is not displaying Cisco Air Time Fairness (ATF) information.

CSCvk79845

WPA-TKIP with Advanced Encryption Standard (AES) is set as required in web UI.

CSCvk79909

Remove all standby R0 commands from the show tech wireless command output.

CSCvm68841

Protected Management Frame (PMF) mandatory Preshared Key (PSK) configuration doesn't give an option to input the PSK.

CSCvp76844

Error is reported after a successful client association.

CSCvp88342

WNCD crash is observed.

CSCvp93411

Controller unexpectedly reloads while executing flex CI suite.

CSCvq23530

The show wireless interface summary command output is not showing NAT public-ip.

CSCvq40363

When RADIUS server name is configures as %0, it shows up as #CLI on the web UI and CLI.

CSCvq44874

Central Web-Auth local switching Layer 3 VLAN override is snot working.

CSCvq48018

MAC congested @Low PPS, drops/TX_XOFF in Bay 0-Tune settings and pause frames in mgig ports.

CSCvq66798

External web authentication log out page is not working.

CSCvq68047

OpenDNS resolver IPs are not coming with NETCONF/RESTCONF with defaults.

CSCvq70386

The show hw-module subslot 0/1 transceiver 0 idprom brief command failed to show any output.

CSCvq77275

UDP 1518 byte upstream packets are dropped from Cisco Catalyst 9800 Wireless Controller for Cloud hosted on Hyper-V, when MTU is set to 1496.

CSCvq80854

Simplify WLAN configuration for Layer 2 and Layer 3 security options.

CSCvr09334

The show ap auto-rf dot11 24ghz command output is not displaying entries of Cisco Aironet 4800 AP, after a day.

CSCvr13531

Core files under standby bootflash is shown twice on the web UI.

CSCvr24930

Controller is displaying wncd crash@ewlc_dgram_msg_and_msgbuf_free message with In-Service Software Upgrade (ISSU) flow in scale.

CSCvr26579

Controller deauthenticates client when receiving DHCP release from the client.

CSCvr44175

System displays memory warning during controller image download.

CSCvr45109

Traceback is observed on the standby controller while unconfiguring port-channel.

CSCvr52588

QoS police configuration is deleted after adding or removing it to policy profile using web UI.

CSCvr70395

Controller is sending delete event for AP impersonation.

CSCvr71770

Wired multicast Domain Name System (mDNS) packet is getting punted to WNCD.

CSCvr84336

Client is stuck in IP learn state with flex mode AP.

CSCvr91736

Web UI is not displaying slot-2 details in 360 degree view.

CSCvr96040

NETCONF/RESTCONF server is not reachable after a switchover.

CSCvs01799

Stack_mgr process logs only the internal btrace logs.

CSCvs15446

Cisco Catalyst 9800-L Wireless Controller HA: Traceback is observed after reload.

CSCvs17412

Backhaul configuration for PSK is showing error as resource not found.

CSCvs20264

Off-channel interference is not being reported.

CSCvs21105

Update & Apply to Device button is not working after configuring FT-PSK with WPA2+WPA3 in web UI.

CSCvs31054

Btman core has been observed.

CSCvs34222

Print a warning message during packet (SWPortMacConflict) drop.

CSCvs45249

Unable to enter a valid URL for urlfilter.

CSCvs60927

Frequent AP channel changes are observed on the 5GHz band radio.

CSCvs63467

IPv6 dual stack is not working.

CSCvs72078

Client retries and Rx packets on Cisco DNA Centre is different from the value seen on the AP.

CSCvs72524

Though dynamic channel allocation (DCA) is set to be OFF, it is still assigning channels to AP radios.

CSCvt13127

Controller is not able to display medium power when AP sends 25W message.

CSCvt16139

Controller is not sending redirect URL if client is already trying to authenticate.

CSCvt55181

Unable to configure SNMP settings using GUI in Japanese mode.

CSCvr74892

EWC WEBUI:Extend button does not do anything in the Day 0 session expiry pop-up.

Troubleshooting

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

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 about the problem that you are experiencing.

Related Documentation

Information about Cisco IOS XE 16 is available at:

https://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-xe/index.html

All the support documentation for Cisco Catalyst 9100 Access Points are available at: https://www.cisco.com/c/en/us/support/wireless/catalyst-9100ax-access-points/tsd-products-support-series-home.html

Cisco Validated Designs documents are available at:

https://www.cisco.com/go/designzone

Cisco Embedded Wireless Controller on Catalyst Access Points

For support information, see the following documents:

Installation guides for Catalyst Access Points are available at:

https://www.cisco.com/c/en/us/support/wireless/catalyst-9100ax-access-points/products-installation-guides-list.html

For all Cisco Wireless Controller software-related documentation, see:

https://www.cisco.com/c/en/us/support/wireless/catalyst-9800-series-wireless-controllers/tsd-products-support-series-home.html

Wireless Products Comparison

Cisco Mobility Services Engine

Cisco Mobility Services Engine Documentation

Cisco Connected Mobile Experiences

Cisco Connected Mobile Experiences Documentation

Cisco DNA Center

Cisco DNA Center Documentation

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