I have a network where people are complaining about performcace problems. When I do ping test pings to remote locations, I sometimes get dropped packest. There is plenty of bandwidth serving the site; below 30 % utilization even at the times the users compalin about performance. I ahve a 3350 configures as a L3 with multiple vlans. 2 of the switches are trunked to this L3. The 3rd access switch is connected to access switch 1 and 2. One of the uplink on this switch is blocking. None of the other switches has bolcked ports. my configs are as shown on the attached worksheet. I see that on some of the trunked ports, there are prots configures as desirable and the other as trunk but they still forma trunk between the 2. Does this really cause problems?
There are some QoS configurations, (still learnig QoS) and don't really understand it. I see the configurations are not consistent, could this be a cause for concern possibly causing performance problems beyond just ping?
Also see the access list configured on the L3. I don't see anything else configured on the L3 besides these 2 lines as it regards to access list. Is this really serving a purpose?
All access ports are configured as shown on attached worksheet.
Note: The L3 is a VTP server and the rest vtp clients.
I have looked just abou everywhere and don't seem to find a problem.
Any insite as to what to look for will be helpful.