I have just set up a fresh install of two Cisco 3850's. My client the following:
1 - Sonicwall NSA220
2 - Cisco 3850's (linked in the back of the switch)
Internet is 100 Mb down / 100 Mb up fiber
When I run a speed test from my Mac Book Pro (15" - 2013 Model Retina) through the switch connected via Thunderbolt -> Ethernet adapter - I get about 6Mb down and about 8Mb up.
When I unplug my cable and plug in directly to the sonicwall, I get about 98Mp down / 96Mb up.
So I plugged back in to the Cisco ad do another speed test, same server, same everything and then it goes back to 6Mb (or so) down and 8Mb up (or so).
So I am lost, can someone direct me where or what needs to change on the Cisco since clearly the Cisco is limiting throughput for some reason. Also, I have checked counters, no collisions, packet loss, etc. Everything is 100%
I have set speed/duplex to auto/auto, 100/auto, 100/full both for my Mac and the Sonicwall. Regardless, when I bypass the Cisco, I get throttled.
I have another client wither two Cisco 3750's and a Sonicwall NSA3500 and they get the full bandwidth and I have compared config's and everything matches (regarding the internet).
Please help, thanks.