topic Re: IOS-XE C9800: Show AP RRM RF neighbors in Wireless

IOS-XE C9800: Show AP RRM RF neighbors

Johannes Luther — Mon, 05 Jul 2021 20:06:50 GMT

Hi wireless experts,

is there any way to check the RRM RF neighbors of APs, which are associated to a C9800 WLC?

I tried the command: "show ap name <AP-NAME> neighbor summary"

However, this command lists all the BSSIDs the corresponding AP sees.

wlc#show ap name myAP101 neighbor summar
BSSID                  Channel   Channel-width Slot        RSSI               Last-Heard                          SSID                                       Neighbour
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
00fc.baec.5681         1         20 Mhz        0           -23                04/06/2021 16:49:47                 SAME_RF_GROUP_SSID1                        FALSE
00fc.baec.5682         1         20 Mhz        0           -23                04/06/2021 16:49:47                 SAME_RF_GROUP_SSID2                        FALSE
00fc.baec.568a         108       20 Mhz        0           -23                04/06/2021 16:49:17                 SAME_RF_GROUP_SSID1                        FALSE
00fc.baec.568b         108       20 Mhz        0           -23                04/06/2021 16:49:17                 SAME_RF_GROUP_SSID2                        FALSE
6c8b.d3cc.c280         1         20 Mhz        0           -70                04/06/2021 16:49:47                 OTHER_RF_GROUP_SSID1                       FALSE
6c8b.d3cc.c282         1         20 Mhz        0           -70                04/06/2021 16:49:47                 OTHER_RF_GROUP_SSID2                       FALSE

So in this example output, you'll see BSSIDs of another AP on the same WLC (same RF group): BSSID starts with 00fc.baec.568

Also the output shows BSSIDs of an AP, which is not inside the WLC deployment: BSSID starts with 6c8b.d3cc.c28

For the first BSSIDs I would expect, that the "Neighbour" column is set to TRUE ... however it is not ... 😞

I'm running IOS-XE 17.3.3

Re: IOS-XE C9800: Show AP RRM RF neighbors

ArulI — Tue, 06 Dec 2022 01:52:04 GMT

show ap name <apname> auto-rf dot11 <band> wll give you the neighor ap detals.

Re: IOS-XE C9800: Show AP RRM RF neighbors

heathc-sanitarium — Thu, 09 Apr 2026 02:02:43 GMT

Apologies for the thread-o-mancy - but when ever I use the "show ap name <apname> auto-rf dot11 <band> command, the AP's listed are macs that are not visible in either cat centre or the 9800 controller. But they should only be AP's we have as there are no active APs elsewhere. Any suggestions?

Re: IOS-XE C9800: Show AP RRM RF neighbors

heathc-sanitarium — Thu, 09 Apr 2026 03:58:17 GMT

sooo...I figured it out...an example list from 5ghz is this (from one of my 5ghz aps):
Nearby APs
AP 2ce3.8edb.fc8f slot 1 : -51 dBm on ( 36, 20 MHz) (WLC IP)
AP 488b.0a7c.e5ef slot 1 : -52 dBm on (132, 20 MHz) (WLC IP)
AP 884f.5962.138f slot 1 : -53 dBm on ( 56, 20 MHz) (WLC IP)
AP 488b.0a7c.cfef slot 1 : -61 dBm on (100, 20 MHz) (WLC IP)
When I check the mac's listed, they dont show up anywhere else.

However, if I leave off the f at the end, it finds the device. And its because of slot 1 radios having the mac end in F for 5Ghz ones.

Re: IOS-XE C9800: Show AP RRM RF neighbors

Johannes Luther — Thu, 09 Apr 2026 04:59:15 GMT

Each radio has a dedicated base MAC address:

show ap name <AP-NAME> config slot <SLOT-ID> | include BSSID
# OR
show ap name <AP-NAME> config dot11 <BAND-NAME> | include BSSID

This is the MAC you should see in the neighbor reports.

Furthermore, each active WLAN has a dedicated MAC address per AP (this is actually named the BSSID), which are the following MACs of the base BSSID.

show ap name <AP-NAME> wlan dot11 <BAND-NAME>

This is what you wireless client sees