Field Notice: FN - 64065 - Catalyst 3850 Switches Might Falsely Log Power Device Connect/Disconnect Messages - Workaround Provided
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Notice
THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.
Revision History
| Revision | Publish Date | Comments |
|---|---|---|
1.0 |
05-Nov-15 |
Initial Release |
10.0 |
12-Oct-17 |
Migration to new field notice system |
10.1 |
14-Jan-19 |
Fixed Broken Image Links |
Products Affected
| Affected Product ID | Comments |
|---|---|
WS-C3850-12X48U |
|
WS-C3850-24P |
|
WS-C3850-24U |
|
WS-C3850-48F |
|
WS-C3850-48P |
|
WS-C3850-48U |
Defect Information
| Defect ID | Headline |
|---|---|
| CSCuw22050 | CSCuw22050 Switch reports Power device detected when non device is connected |
Problem Description
Some Catalyst 3850 switches might log power device detected/removed log messages when there is no device connected. The logs might appear continuously.
Cisco has determined there is no functionality impact due to this issue.
Devices will continue to operate correctly when connected to the switch ports.
Background
Products which can be affected by this issue are listed in the "Products Affected" field AND serial number range given below:
- FCW1927xxxx through FCW1939xxxx
- FOC1927xxxx through FOC1939xxxx
See the "How To Identify Affected Products" section in order to determine if a particular switch is affected. This issue is seen across all supported software releases.
Problem Symptom
These messages might be seen continuously on the screen.
Multiple downlink ports on PoE/uPoE switches in the network might log these messages on the console or buffer based on the customer configuration.
*Sep 10 20:35:46.761: %ILPOWER-7-DETECT: Interface Gi1/0/4: Power Device detected: Cisco PD *Sep 10 20:35:47.920: %ILPOWER-5-POWER_GRANTED: Interface Gi1/0/4: Power granted *Sep 10 20:35:48.085: %ILPOWER-5-IEEE_DISCONNECT: Interface Gi1/0/4: PD removed
Workaround/Solution
Option 1
Disable logging for level 5 and higher.
switch(config)#logging console 4 Switch(config)#logging buffered 4 Switch(config)#logging monitor 4 Switch(config)#logging host 4
Option 2
Disable inline-power log events. Switch(config)# interface range Gigabit/0/1 - <#of ports>, Gigabit/0/1 - <#of ports>, ... Switch(config)#no logging event power-inline-status
Option 1 OR 2 can be used pending a permanent fix in a future software release.
Cisco IOS 3.6.4E IOS XE and 3.7.3E IOS XE planned for release in January 2016
How To Identify Affected Products
Physical Inspection
The serial number is in the range of FCW1927xxxx through FCW1939xxxx.
The serial number is in the range of FOC1927xxxx through FOC1939xxxx.
Show Command
Enter the show version command and look up the "System Serial Number".
The System Serial Number is in the range FCW1927xxxx through FCW1939xxxx or FOC1927xxxx through FOC1939xxxx.
Switch#show version Cisco IOS Software, IOS-XE Software, Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 03.07.00E RELEASE SOFTWARE (fc4) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2014 by Cisco Systems, Inc. Compiled Mon 08-Dec-14 00:20 by prod_rel_team ****************************************************************** Model Number : WS-C3850-48P System Serial Number : FCW1936D1XE
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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