Let the record show that I’m holding back the urge to make a sarcastic “intuitive” comment.
Lee Badman (mobile) On Aug 17, 2018, at 3:54 PM, Alan D Wang <[email protected]<mailto:[email protected]>> wrote: Here is the dump from an AP with a corrupt boot loader after software upgrade/power cycle. Symptoms of the unit having this problem are no console output after BootROM: Image checksum verificaiton FAILED and no status LED lighting up. On the switch at my desk (WS-C2960CX-8PC), if you plug in the AP, you get no link light, but from cli you see that power is negotiated and drawn to the AP. BootROM - 1.78 Booting from SPI flash, Secure mode BootROM: RSA Public key verification PASSED BootROM: CSK block signature verification PASSED BootROM: Boot header signature verification PASSED BootROM: Box ID verification PASSED BootROM: JTAG is disabled General initialization - Version: 1.0.0 Detected Device ID 6920 Master bootloder version 1.22 High speed PHY - Version: 2.0 BoardId = 0x21board SerDes lanes topology details: | Lane # | Speed| Type | ------------------------------| | 1 | 0 | SGMII1 | | 2 | 5 | PCIe1 | | 4 | 5 | PCIe2 | | 5 | 0 | SGMII2 | ------------------------------- :** Link is Gen1, check the EP capability PCIe, Idx 1: Link upgraded to Gen2 based on client cpabilities :** Link is Gen1, check the EP capability PCIe, Idx 2: Link upgraded to Gen2 based on client cpabilities High speed PHY - Ended Successfully DDR4 Training Sequence - Ver TIP-0.23.(Sublib 0.8)0 DDR4 Training Sequence - Switching XBAR Window to FastPath Window DDR4 Training Sequence - Ended Successfully BootROM: Image checksum verification FAILED On Fri, Aug 17, 2018 at 3:45 PM, Jeffrey D. Sessler <[email protected]<mailto:[email protected]>> wrote: You may not get link/activity until the AP's interface comes up, but the AP may still be requesting power and booting. I'd get one attached to a console cable and see what happens. If you're using a Cisco switch, the "show power inline" command will tell you if power is being supplied/requested. Jeff On 8/17/18, 11:17 AM, "The EDUCAUSE Wireless Issues Constituent Group Listserv on behalf of Sam Ziadeh" <[email protected]<mailto:[email protected]> on behalf of [email protected]<mailto:[email protected]>> wrote: POE switch (non cisco). We did take some of the failed units and plugged them into a Cisco POE switch to rule out a switch issue. We did not check the console port of the AP, but the port on the switch was not lighting up either. -Sam -----Original Message----- From: The EDUCAUSE Wireless Issues Constituent Group Listserv <[email protected]<mailto:[email protected]>> On Behalf Of Jeffrey D. Sessler Sent: Thursday, August 16, 2018 7:59 PM To: [email protected]<mailto:[email protected]> Subject: Re: [WIRELESS-LAN] Cisco AP2800 failure rate I’ve got a metric ton of 3800’s and 2800’s spanning FCS (first customer ship) to less than a month old and have had zero failures. I agree with one of the other posters that even with no lights displayed, there can be action on the console port. Was the initial failure when connected to a POE switch or using an injector? Cisco switches/injectors or third-party? Jeff From: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> on behalf of Sam Ziadeh <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Thursday, August 16, 2018 at 7:39 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: [WIRELESS-LAN] Cisco AP2800 failure rate Is anyone else seeing a high rate of Cisco AP 2800 failures? Out of a batch of ~500 recently installed Aps, we have had roughly 70 fail. Some were online for a month, but some only a few days. Typically they will fail after a powercycle or loss of power. We are working with Cisco on this, but I’m curious if this is a more wide spread problem. ------------------------------------------------------------- Sam Ziadeh Manager, Network Engineering & Architecture University Networking & Infrastructure Information Technology Services Louisiana State University (225) 578-0074 [email protected]<mailto:[email protected]> <mailto:[email protected]<mailto:[email protected]>> ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. -- Alan Wang Network Analyst Binghamton University [email protected]<mailto:[email protected]> ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
