Bug 1258004 - Wireless AC interfaces are not reliably detected
Summary: Wireless AC interfaces are not reliably detected
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Certification Program
Classification: Red Hat
Component: redhat-certification-hardware
Version: 1.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: brose
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks: 1304756
TreeView+ depends on / blocked
 
Reported: 2015-08-28 15:15 UTC by Greg Nichols
Modified: 2016-02-16 09:32 UTC (History)
3 users (show)

Fixed In Version: 1.7.1-20160126.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 1304756 (view as bug list)
Environment:
Last Closed: 2016-02-16 09:32:59 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2016:0194 0 normal SHIPPED_LIVE redhat-certification-hardware bug fix and enhancement update 2016-02-16 14:32:27 UTC

Description Greg Nichols 2015-08-28 15:15:22 UTC
Description of problem:

Wireless AC adapters are not reliably detected.   The wireless test uses "iw <interface name> link" to determine the connected "speed".  For AC, this varies quite a bit over time, and sometimes a G or N test is planned

Version-Release number of selected component (if applicable):

redhat-certification-hardware 1.6, 1.7

How reproducible:

Comment 1 Greg Nichols 2015-08-28 15:18:52 UTC
The suggestion is to use "iw phy0 info" to determine supported types/speeds.

Comment 2 Ken Benoit 2015-08-28 15:37:22 UTC
As in comment #1 it is recommended to use "iw <wireless phy name> info" to determine the hardware capabilities when choosing the test to plan. The phy number can be determined by calling "iw <logical device name> info" and looking at the "wiphy" field. In most cases where there is only one wireless card in the system this phy device will be "phy0".

Running "iw <wireless phy device, typically phy0> info" will print out the capabilities of the wireless card indicated.
* For wireless B you should look for the "Supported rates" section and see if the rates only go up to 11.0 Mbps (and 6.0 Mbps should not be listed).
* For wireless G you should look for the "Supported rates" section and make sure the rates go up to 54.0 Mbps. It should not contain a "VHT Capabilities" section nor should it list off "HT20/HT40" in the "Capabilities" section.
* For wireless N if you look under the "Capabilities" section "HT20/HT40" should be listed. There should be no "VHT Capabilities" section.
* For wireless AC there should be a "VHT Capabilities" section and "short GI (80 MHz)" should be listed (as wireless AC requires 80 MHz channel width in the spec).

Comment 4 Brian Brock 2016-01-29 22:25:14 UTC
The most recent results for the wireless tests (all flavors) pass and no problems were seen.

redhat-certification-2.2-20160126.el7
redhat-certification-hardware-2.2-20160128.el7

Comment 6 errata-xmlrpc 2016-02-16 09:32:59 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-0194.html


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