RE: Cisco 702W Link Up/Down Issues when connected to a C2960x

2017-11-27 Thread Gray, Sean 
Hi Randy,

That would seem to fit almost perfectly with what we are seeing as this command 
isn't available on our 3750x switches (at least at the code release we are 
running). I'll look into testing this on a couple of switch ports and see what 
happens.

Thanks

Sean

Sean Gray | B.Sc (Hons)
Voice, Communications & Wireless Network Analyst
ITS, University of Lethbridge

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Mahurin, Randy
Sent: November-27-17 11:38 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Cisco 702W Link Up/Down Issues when connected to a 
C2960x

Sean,

It sort of sounds like this bug:
https://quickview.cloudapps.cisco.com/quickview/bug/CSCus35889

Workaround:
Disable Energy-Efficient Ethernet (EEE) by below CLI command:
2960X(config-if)#no power efficient-ethernet

I remember something very similar and it took forever to resolve.



Randy Mahurin
Idaho Power | Information Technology

Work  (208) 388-2663

Email  rmahu...@idahopower.com

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Gray, Sean
Sent: Monday, November 27, 2017 11:33 AM
To: 
WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [EXTERNAL] [WIRELESS-LAN] Cisco 702W Link Up/Down Issues when 
connected to a C2960x


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Hi Everyone,

This is a question for all of those out there that are using Cisco 702W wall 
mounted access points hooked up to a Cisco Catalyst 2960x, 48 port switch 
(WS-C2960X-48FPD-L). Has anyone experienced link dropping between the access 
points and switches?

We have a number of 702W access points deployed across our campus, some are 
connected to Cisco Catalyst 3750x switches, running 15.0(2)SE6 code. The 
majority are connected to 29060x switches, running 15.2(2)E6.  this is where we 
have a problem. Almost all of those connected to 2960x keep dropping link, 
these bounces vary in recovery time, sometimes as shown below the recovery is 
under 10 seconds, sometimes over 10 seconds. The latter generates an alert from 
my 5520 WLC which is caught by Prime Infrastructure and I get notified. We have 
yet to see the same issue with the 702Ws that are connected to our 3750x 
switches.

Nov 27 11:03:52: %LINEPROTO-5-UPDOWN: Line protocol on Interface 
GigabitEthernet1/0/2, changed state to down
Nov 27 11:03:53: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state 
to down
Nov 27 11:03:55: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state 
to up
Nov 27 11:03:58: %LINEPROTO-5-UPDOWN: Line protocol on Interface 
GigabitEthernet1/0/2, changed state to up

We've tried upgrading the controller code a couple of times. Our last upgrade 
had us move from 8.2.160 to 8.3.133 and the problem persists. Note we are 
unable to move off the 8.3 train due to still having a few 1142s deployed.
We've tried upgrading the code version on one of the 2960x switches, from 
15.2(2)E6 to 15.2(2)E7 and the problem persists.

I am sure this is an issue with the 2960x and as such we currently have a 
ticket with TAC, that has recently been passed from the Wireless team to the 
Switching team.

Thanks

Sean


Sean Gray | B.Sc (Hons)
Voice, Collaboration & Wireless Network Analyst
ITS, University of Lethbridge


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RE: Cisco 702W Link Up/Down Issues when connected to a C2960x

2017-11-27 Thread Mahurin, Randy 
Sean,

It sort of sounds like this bug:
https://quickview.cloudapps.cisco.com/quickview/bug/CSCus35889

Workaround:
Disable Energy-Efficient Ethernet (EEE) by below CLI command:
2960X(config-if)#no power efficient-ethernet

I remember something very similar and it took forever to resolve.



Randy Mahurin
Idaho Power | Information Technology

Work  (208) 388-2663

Email  rmahu...@idahopower.com

From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Gray, Sean
Sent: Monday, November 27, 2017 11:33 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [EXTERNAL] [WIRELESS-LAN] Cisco 702W Link Up/Down Issues when 
connected to a C2960x


KEEP IDAHO POWER SECURE! External e-mails may request information or contain 
malicious links or attachments. Verify the sender before proceeding.
Hi Everyone,

This is a question for all of those out there that are using Cisco 702W wall 
mounted access points hooked up to a Cisco Catalyst 2960x, 48 port switch 
(WS-C2960X-48FPD-L). Has anyone experienced link dropping between the access 
points and switches?

We have a number of 702W access points deployed across our campus, some are 
connected to Cisco Catalyst 3750x switches, running 15.0(2)SE6 code. The 
majority are connected to 29060x switches, running 15.2(2)E6.  this is where we 
have a problem. Almost all of those connected to 2960x keep dropping link, 
these bounces vary in recovery time, sometimes as shown below the recovery is 
under 10 seconds, sometimes over 10 seconds. The latter generates an alert from 
my 5520 WLC which is caught by Prime Infrastructure and I get notified. We have 
yet to see the same issue with the 702Ws that are connected to our 3750x 
switches.

Nov 27 11:03:52: %LINEPROTO-5-UPDOWN: Line protocol on Interface 
GigabitEthernet1/0/2, changed state to down
Nov 27 11:03:53: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state 
to down
Nov 27 11:03:55: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state 
to up
Nov 27 11:03:58: %LINEPROTO-5-UPDOWN: Line protocol on Interface 
GigabitEthernet1/0/2, changed state to up

We've tried upgrading the controller code a couple of times. Our last upgrade 
had us move from 8.2.160 to 8.3.133 and the problem persists. Note we are 
unable to move off the 8.3 train due to still having a few 1142s deployed.
We've tried upgrading the code version on one of the 2960x switches, from 
15.2(2)E6 to 15.2(2)E7 and the problem persists.

I am sure this is an issue with the 2960x and as such we currently have a 
ticket with TAC, that has recently been passed from the Wireless team to the 
Switching team.

Thanks

Sean


Sean Gray | B.Sc (Hons)
Voice, Collaboration & Wireless Network Analyst
ITS, University of Lethbridge


** Participation and subscription information for this EDUCAUSE 
Constituent Group discussion list can be found at 
http://www.educause.edu/discuss.


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This transmission may contain information that is privileged, confidential 
and/or exempt from disclosure under 

applicable law.  If you are not the intended recipient, you are hereby notified 
that any disclosure, copying, 

distribution, or use of the information contained herein (including any 
reliance thereon) is STRICTLY PROHIBITED. If 

you received this transmission in error, please immediately contact the sender 
and destroy the material in its 

entirety, whether in electronic or hard copy format.  Thank you.

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Cisco 702W Link Up/Down Issues when connected to a C2960x

2017-11-27 Thread Gray, Sean 
Hi Everyone,

This is a question for all of those out there that are using Cisco 702W wall 
mounted access points hooked up to a Cisco Catalyst 2960x, 48 port switch 
(WS-C2960X-48FPD-L). Has anyone experienced link dropping between the access 
points and switches?

We have a number of 702W access points deployed across our campus, some are 
connected to Cisco Catalyst 3750x switches, running 15.0(2)SE6 code. The 
majority are connected to 29060x switches, running 15.2(2)E6.  this is where we 
have a problem. Almost all of those connected to 2960x keep dropping link, 
these bounces vary in recovery time, sometimes as shown below the recovery is 
under 10 seconds, sometimes over 10 seconds. The latter generates an alert from 
my 5520 WLC which is caught by Prime Infrastructure and I get notified. We have 
yet to see the same issue with the 702Ws that are connected to our 3750x 
switches.

Nov 27 11:03:52: %LINEPROTO-5-UPDOWN: Line protocol on Interface 
GigabitEthernet1/0/2, changed state to down
Nov 27 11:03:53: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state 
to down
Nov 27 11:03:55: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/2, changed state 
to up
Nov 27 11:03:58: %LINEPROTO-5-UPDOWN: Line protocol on Interface 
GigabitEthernet1/0/2, changed state to up

We've tried upgrading the controller code a couple of times. Our last upgrade 
had us move from 8.2.160 to 8.3.133 and the problem persists. Note we are 
unable to move off the 8.3 train due to still having a few 1142s deployed.
We've tried upgrading the code version on one of the 2960x switches, from 
15.2(2)E6 to 15.2(2)E7 and the problem persists.

I am sure this is an issue with the 2960x and as such we currently have a 
ticket with TAC, that has recently been passed from the Wireless team to the 
Switching team.

Thanks

Sean


Sean Gray | B.Sc (Hons)
Voice, Collaboration & Wireless Network Analyst
ITS, University of Lethbridge



**
Participation and subscription information for this EDUCAUSE Constituent Group 
discussion list can be found at http://www.educause.edu/discuss.