What do 802.11a Low Band, 802.11a Mid Band & 802.11a High Band signify?

[Muhammed Adnan]

Hello Experts, 

On issuing "Show 802.11a", Could see the 802.11a  Low band, Mid Band and High Band are enabled. What do these signify?

[Rasika Nayanajith · Accepted solution]

Those are referring to UNII-1 (CH36-48), UNII-2 (CH52-64) & UNII-3 (CH149-161) channels in 5GHz spectrum. Note that each band get different regulatory restrictions, see below for example.(in ETSI, no UNII-3 channels allowed)

Refer this Ciscolive presentation for more details.

HTH

Rasika

*** Pls rate all useful responses ***

[Muhammed Adnan]

Thank you as always Rasika for wonderful responses.

I wondered that it could mean the same. However wants to cross confirm. 

[Leo Laohoo]

UNII-1, UNII-2/2E, UNII-3 channels.