Version 3.1 SP2 Reference Guide - Extreme Networks

Chapter 22You can use the mouse to change the depth and rotation of a three-dimensional chart:●●Hold down the [Shift] key, press the left mouse button, and drag the cursor left or right to rotate thegraph.Hold down the [Ctrl] key, press the left mouse button, and drag the cursor up or down to set thedepth of the three-dimensional view.For any of the bar graphs, move the cursor and then wait to see the change take effect, which may takea few seconds.There are cases where you may not see data for every port you expect in a multi-port display:●●You have selected the “top N” feature (top 15 by default), so only the “N” ports with the highestutilization or the highest total number of errors are displayed.RMON is disabled for some ports on the switch. If the switch as a whole can be reached and isreporting data, then individual ports that do not report data will be ignored. No error messageappears in this case.If the Ridgeline server is not successful in loading data from the device, it displays a message similar tothat shown in Figure 314.Figure 314: Warning displayed when the Ridgeline server cannot retrieve dataThere are several reasons why the Ridgeline server may not be able to display any device data:●●The Ridgeline server cannot communicate with the device (indicated by an “S” in a red circle next tothe device name).The device does not have RMON enabled, or RMON was just recently enabled and no data samplesexist yet.Ridgeline Reference Guide449