Lee, we had this on a few batches of the 3702's as well. Turned off spanning tree until they update their image and then turned spanning tree back on.


Jason Becker
Network Systems Engineer,
Network Planning and Services
Tel:(314)935-5006

On 8/11/15 7:57 AM, Lee H Badman wrote:

Yeah, this stuff is insane. I can’t imagine how you defend this from the Cisco side.

*Lee Badman*| Network Architect

Information Technology Services
206 Machinery Hall
120 Smith Drive
Syracuse, New York 13244

*t*315.443.3003 *f* 315.443.4325 *e* [email protected] <mailto:[email protected]> *w* its.syr.edu

*SYRACUSE UNIVERSITY*
syr.edu

*From:*The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] *On Behalf Of *Mathieu Sturm
*Sent:* Tuesday, August 11, 2015 8:55 AM
*To:* [email protected]
*Subject:* Re: [WIRELESS-LAN] New 3702 APs not playing well with Spanning-Tree Portfast Out-of-Box

I’ve seen 2702’s doing this as well. Was amazed when I looked in the log of my switch when I couldn’t figure out why the ports got disabled. Wrong MAC address is also one of the problems we’re having with the 2702’s. Don’t know what they have been doing with these pre-loaded images on them. These images should have been tested better at Cisco…

*Van:*The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] *Namens *Lee H Badman
*Verzonden:* dinsdag 11 augustus 2015 14:36
*Aan:* [email protected] <mailto:[email protected]> *Onderwerp:* Re: [WIRELESS-LAN] New 3702 APs not playing well with Spanning-Tree Portfast Out-of-Box

Thanks, Oliver- so this is known… good to know. So far I’m not finding a specific bug ID doing searches. Would you have any link, by chance?

*Lee Badman*| Network Architect

Information Technology Services
206 Machinery Hall
120 Smith Drive
Syracuse, New York 13244

*t*315.443.3003 *f* 315.443.4325 *e* [email protected] <mailto:[email protected]> *w* its.syr.edu

*SYRACUSE UNIVERSITY*
syr.edu

*From:*The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] *On Behalf Of *Oliver Elliott
*Sent:* Tuesday, August 11, 2015 8:27 AM
*To:* [email protected] <mailto:[email protected]> *Subject:* Re: [WIRELESS-LAN] New 3702 APs not playing well with Spanning-Tree Portfast Out-of-Box

We had this behaviour on a batch of 2702s, the firmware that was preloaded had this bug that went away once the associated and upgraded. It's a right pita changing the port config to get them to connect, then reverting it later, but not as bad as the other firmware bug causing APs to use the wrong MAC address until they upgraded.

On 11 August 2015 at 13:21, Lee H Badman <[email protected] <mailto:[email protected]>> wrote:

    Wondering if anyone has seen similar with Cisco APs: On
    switchports that have been fine for other Cisco APs, a run of new
    3702s are going into error disable. If you turn on the ability to
    see why in the switch, the APs – only when new out of box—are
    sending BPDUs to ports that have Spanning-Tree Portfast on as a rule.

    If you remove portfast, the new 3702s go off to the WLC just fine,
    get updated for code, and then work as expected. You can restore
    spanning-tree portfast, reboot the APs (that are no longer “out of
    box”) and they behave fine on the portfast-enabled ports.

    I’ve not seen this behavior with any other Cisco AP, and I don’t
    think it happened with our earliest 3700s, either.

    Does this oddity ring familiar with anyone?

    Thanks-

    Lee

    *Lee Badman*| Network Architect

    Information Technology Services
    206 Machinery Hall
    120 Smith Drive
    Syracuse, New York 13244

    *t*315.443.3003 *f* 315.443.4325 *e* [email protected]
    <mailto:[email protected]> *w* its.syr.edu <http://its.syr.edu>

    *SYRACUSE UNIVERSITY
    *syr.edu <http://syr.edu>

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



--

Oliver Elliott
Senior Network Specialist
IT Services
University of Bristol
e: [email protected] <mailto:[email protected]>
t: 0117 39 (41131)

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

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

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

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



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

Reply via email to