Assuming your question is refering to a V5000 radio node. Radio node links that start with 12:xx:xx:xx:xx:xx are related to Sector 1, and Radio node links that start wtih 22:xx:xx:xx:xx:xx are related to Sector 2. For V3000, V2000, and V1000, they only have a single radio (whereas the V5000 has two radios) and therefore these three nodes would only ever show usage of Sector 1 for thier RF links.
