MS125s - Constant STP changes - reason for concern?
Have a pretty simple, MX75 with two MS125 switches.. Trunks from MX to each switch. STP Root is SW1. SW2 event log shows static STP but SW1 looks like it is taking ports up and down. Am thinking of just disabling STP as can't imagine why this is happening.
MX Trunk to SW1 has allowed: Native Vlan 1 and VLANs 10,20,30. SW1 has uplink port allowing all VLANs.
MX Trunk to SW2 has allowed: Native VLAN1 and VLANs 40, 50. SW2 has uplink port allowing all VLANs
STP messages below and diagram.. I have no idea why it is changing ports 7 and 17.. They are connected to an Apple iMac and printer.. nothing weird. These changes are going on forever so thinking of just disabling STP altogether. Any thoughts?
From the replies, it seems like this is normal STP behavior. I was worried that the Spanning Tree algorithm was actually disabling and enabling ports.. but it is responding to the ports going into a power-save mode and shutting down or lowering from 1 to 0.1 gbs speed. I found that I could go into the advanced properties of the ethernet port and keep it from powering down.. but I am not concerned; since this is normal behavior. Thanks for the insights.