Look for obvious stuff first like your connections between your switches , do you have speed/duplex mismatches on the links , are you seeing errors etc... Look at user ports also for the same problems . If you are usuing cisco switches do a show int status and look for any interfaces that are showing half duplex , this is usually a mismatch scenario . If you are unsure then hardcode the speed/duplex to 100/full on "both" ends of any connecting links. You should be seeing very little speed degradation just by adding a fast ether to a gig switch. You can check link utilization also between the switches , usually this is not a problem unless you are getting over 80 % link utilization .
Server adapter teaming is known to cause similar behaviour, especially since you are stating that it happens on the switches where the server is not connected. Dissolve the team and test for speed increases.
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...