Installed APIC-EM 18.104.22.1689. When performed network discovery using CDP and seed device all devices are properly discovered but some links are missing. Have tried it several times but there were always some link missing. In one case there displayed a link which doesn't exist.
a couple of quick questions.
- For the links in question (and mainly the one at the top of your diagram), can you do a "show cdp ne" on both devices to make sure they can see each other via CDP.
- The devices at the bottom of the screen look like they are in pairs. Are those vss pairs?
Checked cdp entries on affected switches . Switches at the bottom are N5K's with synchronized configuration. In the meantime I tried the same with 22.214.171.12483 and the result was similar
(other links were not displayed). Then I deleted all devices and performed
rescan but the result was even worse. Lot of lines missing ...
I allocated for this test instalation 150 GB only and the disk performance
is slower that minimum recommended but I don't think this could cause such
$ dd if=/dev/zero of=/tmp/foo bs=1M count=512 conv=fdatasync
512+0 records in
512+0 records out
536870912 bytes (537 MB) copied, 2.95471 s, 182 MB/s
Given the small number of devices and the Disk IO, i do not think that has anything to do with this issue.
The 5k issue might be related to VPC.
The 3k at the top should be able to see each other... that should just work. Is there anything different in how the 3k are connected?
The link problem happened between switch and ap,
the switch model "WS-C3650-48PS-S", soft version: cat3k_caa-universalk9.SPA.03.07.03.E.152-3.E3.bin the ap model "2702I or 2702E", soft version: 15.3(3)JN11, WLC is CT-5508/ version 7.6
Do you have a domain-name for the AP.
No, many aps have no set domain-name, so , you mean i need to set domain-name for all of them?
Above pictures just have two correct ap, others have some link problem, and the two correct ap have no set domain-name!!!
There is a known issue when domain-name is set.
Do you have domain-name set on the ones that are causing the problem. You can tell if you do a "show cdp nei" on the switch they are connected to.. CDP will show if there is a domainname or not.
No, after i do a 'show cdp nei', and i have not seen domain-name. so, what i should do next step. keep the current or set domain-name for ap?? kindly waitting for you advice.
please do not set the domain-name. that will definitely cause an issue with AP.
In inventory,does below issue is correct or not .Is there may have some information missing..
That is expected for the AP.
The uptime/polling is done on the WLC, not the AP.