When you’re investigating mesh wireless issues, it’s important to know which mesh neighbors are seen by each access point (AP). Here is a quick tutorial of how to best utilize the built-in features in Dashboard that allow you to check out who is talking to whom in the mesh and what the quality of the links are:
1. In the Dashboard, go to Monitor -> Access points.
2. Click an AP in the list.
3. Scroll down to the section Neighbors. (See screen shot below).
The Neighbors section reveals the mesh APs seen by the AP you’re currently looking at. Using the example above, the AP is directly communicating with four mesh neighbors: Outdoor, Indoor, MR14, and MR58. The other columns in the table provide useful information for troubleshooting wireless problems:
Shows the distance from the AP to each neighbor in meters (Make sure to place the APs on the map accurately in order for these distances to be meaningful).
Describes which radio (if neighbor is a multi-radio device) of the neighbor is communicating with the AP.
Measures the received signal strength indication (RSSI) of the RF signal from the neighbor. This measurement correlates to a value in decibels (dB). For example, an RSSI of 10 is considered a very weak signal. To improve the signal: move APs closer to each other; create a better line-of-sight; consider using a more powerful antenna; eliminate RF interference; or try a different RF channel.
Reports the percentage of packets successfully delivered from the AP to its neighbor. For example, 75% means that 3 out of every 4 packets made it to the neighbor from the AP; in other words, there’s 25% loss. Good quality links typically will show no more than 10-15% packet loss.
Reports the percentage of packets successfully delivered from the neighbor to the AP. Good quality links will typically have no more than 10-15% packet loss.
If you don’t see a particular mesh AP in the list, that means the AP you’re looking at can’t see it. If it could, that mesh AP would be present in the Neighbors list.
Can you think of other information you’d like to see reported in the Dashboard? Let us know by entering your feedback in the “make a wish” field.
-Posted by Ahmed Akhtar