Introduction
This release notes document describes features, enhancements, and caveats for the Cisco Aironet 1800s Active Sensor using the Cisco Wireless Release 8.8.258.0 8.8.259.0 . These release notes are updated as needed to provide information about new features, caveats, potential software deferrals, and related documents.
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However, if you do not have a Cisco.com account, you can find the field notices at: http://www.cisco.com/en/US/support/tsd_products_field_notice_summary.html.
Overview of Cisco Aironet 1800s Active Sensor
The Cisco Aironet 1800s Active Sensor is a part of Cisco's Wireless Service Assurance solution. The Wireless Service Assurance platform has three components, namely, Wireless Performance Analytics, Real-time Client Troubleshooting, and Proactive Health Assessment.
The Cisco Aironet 1800s Active Sensor is referred to as the Network Sensor, or sensor in this document.
The Cisco Aironet 1800s Active Sensor is an 802.11 a/b/g/n/ac (Wave 2) sensor, with internal antennas and an Ethernet backhaul. The sensor can be mounted, in a vertical orientation, on a wall or a desk and supports 2x2:2 SS MU-MIMO applications. The sensor is capable of joining an infrastructure access point as a client. The sensor can be used to monitor, measure, and troubleshoot overall wireless network performance.
What's New in Cisco Wireless Release 8.8.258.0
The following section provides a brief introduction to the new features and enhancements that are introduced in this release:
Cisco DNA Center Speed Test for Sensors
The speed test allows the Cisco Aironet 1800s Active Sensor to directly measure the network speed between a wireless client and the server to identify performance problems and configuration issues. The sensor must have internet access (through a proxy server if the sensor is behind a firewall) to run the speed test. This test is conducted using Cisco DNA Center where you need to specify details of the speed test server the client is connecting to and the proxy server.
Cisco IP SLA for Sensors
The Cisco IP Service Level Agreement (SLA) feature enables the use of the Cisco Aironet 1800s Active Sensor as clients to proactively monitor the wireless network and manage network performance. This test is conducted using Cisco DNA Center where you need to specify the test name, location from the site hierarchy, and interval before scheduling the tests.
Caveats
Caveats describe unexpected behavior in the Cisco Wireless Network Sensor software. Severity 1 caveats are the most serious while Severity 2 caveats are less serious.
The Resolved Caveats and Open Caveats sections list the caveats in the Cisco Wireless Release 8.8.258.0. The following information is provided for each caveat:
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Identifier—Each caveat is assigned a unique identifier (ID) with a pattern of CSCxxNNNNN, where x is any letter (a-z) and N is any number (0-9). These IDs are frequently referenced in Cisco documentation, such as Security Advisories, Field Notices and other Cisco support documents. Technical Assistance Center (TAC) engineers or other Cisco staff can also provide you with the ID for a specific caveat.
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Description—A description of what is observed when the caveat occurs.
Cisco Bug Search Tool
The Cisco Bug Search Tool (BST), which is the online successor to the Bug Toolkit, is designed to improve the effectiveness in network risk management and device troubleshooting. The 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 tool has a provision to filter bugs based on credentials to provide external and internal bug views for the search input.
For more information about how to use the Cisco Bug Search Tool effectively, including how to set email alerts for bugs, filter bugs, and save bugs and searches, see the Bug Search Tool Help & FAQ page.
You can access the listed bugs through the BST. This web-based tool provides you access to the Cisco bug tracking system, which maintains information about bugs and vulnerabilities in the Cisco Wireless Network Sensor software and other Cisco hardware and software products.
Click the Caveat Identifier number in the table. The corresponding BST page is displayed with details of the bug.
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If you are not logged in, you will be redirected to a Log In page where you need to enter your registered Cisco.com username and password to log In. If you do not have a Cisco.com account, you can register for one. |
If the defect that you have selected cannot be displayed, this may be due to one or more of the following reasons:
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The defect number does not exist
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The defect does not have a customer-visible description yet
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The defect has been marked Cisco Confidential
Open Caveats
This section lists the open caveats in Cisco Wireless Release 8.8.258.0. These caveats apply to the current release and may apply to previous releases. A caveat that is open for a prior release and is still unresolved applies to all future releases until it is resolved.
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Caveat Identifier |
Caveat Description |
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Inconsistent test results in the sensor dashboard |
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Cisco Aironet 1800s may reboot to OOM on running all tests |
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Sensor does not recover from HEARTBEAT FAILURE after upgrade from 1.2.4 to 1.2.5 |
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IOS AP needs to be avoided for running IPSLA tests |
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Sensor "test results" for all tests has missing test results |
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Cisco DNA Center 1.2.6: Sensor EAP-FAST test reports slow-onboarding |
Resolved Caveats
This section lists the caveats that have been resolved in Cisco Wireless Release 8.8.258.0.
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Caveat Identifier |
Caveat Description |
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Sensor: wired and wireless interface have ip address at the same time |
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Sensor: Wireless backhaul is broken in 8.8 code |
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Sensor: Sensor functionality broken when Domain name used for DNA |
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Sensor Webauth Test Failure: Logout logic needs addressing unexpected error during webauth |
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Sensor Performance: IPSLA test latency is much higher than speed test latency |
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Sensor: Tests on 8.8.256.4 stops after 2-3 iterations with NBUF alloc failed |
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Exceptions during WSA tests |
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DNAC 1.2.5: Speed test results are failing for 1800S |
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AP1800-S sensor crashes on OOM when image upgrade initiated through SWIM |
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AP1800S: Wireless sensor is not even trying to connect to the test SSID created from DNAC |
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Sensor: Sensor functionality stopped on 1800S but did not reboot |
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AIR-AP1800S-B-K9 sensor stopped sending heartbeat to DNAC and goes to unreachable state |
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1800S: Continuous OOM when speed test is running |
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Sensor: EAPTLS onboarding failure due to inability to download the certificate |
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Sensor 8.8: Disable SSH by default |
Service and Support
For all support-related information, see http://www.cisco.com/c/en/us/support/index.html.
Related Documentation
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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.
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