Discussion in 'Tomato Firmware' started by Kiwi8, Jan 31, 2008.
Does Spanning Tree Protocol impose an overhead?
sure...any additional process you have running will. It will impose an overhead on your switches because the spannning tree process is running on them, and on your network, as the switches involved have to send out BPDUs to determine which paths/ports are active and which should be used and which shouldn't to prevent layer 2 loops.
I'm guessing the next question would be 'how much overhead?' That I cannot answer, as my network isn't complex enough or configured such that I need to run spanning tree.
Most home users will not have a need for spanning tree. If you do not and turn it on anyways then it will cost you 2 things, cpu cycles and 50 seconds of your time to let ports run through the stp process.
In a 3 switch network, I don't notice the overhead in network speed. If you have a bunch of nodes linked by WDS or something where the STP frames have to continuously jump over wireless, I guess you'd notice.
Thanks for the replies.