Saturday, April 17, 2021

Manual Radio Channel Assignment in a Cisco WLC

It's rainy season here in Singapore (April 2021) and I was craving for some Japanese food. So I went to Don Don Donki in Orchard Central and they sell a wide range of Japanese products like snacks, sweets, drinks, bento set, sushi, etc.



These are the items I brought home: Dango balls (sweet soy), California maki roll, Takoyaki (octopus) balls, Katsudon pork and sweet potato. They all taste authentic and almost have the same quality from a Japanese restaurant.

I headed over to Menbaka Fire Ramen in Cineleisure Orchard, which is a famous Ramen shop in Kyoto, Japan. They use burning negi (green) onion oil which creates the fire effect when poured into the bowl. This brings out the flavor of the green onions. The restaurant allow diners to seat in front of the kitchen to experience the "theatrical" fire display.


I ordered the Shoyu Fire Ramen and Ocha tea (cold) which is perfect for the rainy weather.

Here's a nice link regarding the Radio Resource Management (RRM) in a Cisco WLC. You can manually assign or override the AP's radio channel in a Cisco WLC under Wireless > Access Points > Radios > select the specific 802.11 radio (in this case 802.11b/g/n) > click the blue arrow icon (far right) on the specific AP (ap03 in this case) > click Configure.

Under RF Channel Assignment > Assignment Method > select Custom > select the specific channel (ap03 current channel is 1 so I chose channel 6) > click Apply > Save Configuration.

 

The ranges are as follows:
802.11a - 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 132, 136, 140, 149, 153, 157, 161, 165, 190, 196

802.11b/g - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11

The defaults are as follows:
802.11a - 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 132, 136, 140, 149, 153, 157, 161 

802.11b/g - 1, 6, 11

It's recommend that you use only non-overlapping channels: i.e. 1, 6, 11, and so on.