The portfast feature basically tells the switch ONLY host devices will be attached to this interface and as a result the stp can be bypassed and the interface can be put straight into a forwarding state.
So in summary portfast = end users/servers/printers etc.. - anything but hubs or switches.
Please don't forget to rate any posts that have been helpful.
kind regards Paul
Please rate and mark posts accordingly if you have found any of the information provided useful. It will hopefully assist others with similar issues in the future
Most of it is added by Pdriver, just to make one note irrespective of switches the concept of Portfast remains the same.
The simple explanation is that PortFast will immediately transition a port to the forwarding state and not attempt to detect a switching loop unless a BPDU is received on the port with PortFast enabled. So plugging in multiple links on hubs, switches or bridges to the network can temporary switching loops.
Another major advantage of PortFast is that a TCN (Topology Change Notification) is not generated by spanning-tree each time a port goes up or down. This conserves resources as spanning-tree does not have to reprocess the tree every time a TCN is generated.
Hello guys.I installed remote access VPN on Windows 2019. I need to do additional configuration on the router to allow access outside. I got this.Public IP--------------ISP Router-------------Fa0/0 Cisco Router Fa0/1------------------------My Server ...
Meet the Authors video - How to Troubleshoot Network Problems with Vinit Jain
(Live event – Wednesday, February 12th, 2020 at 10:00 a.m. Pacific / 1:00 p.m. Eastern / 7:00 p.m. Paris)
This event had place on Wednesday 12th, February 2020 at 10hrs PDT&nbs...
I have a pair of 3945 routers that are proving to be underpowered for the 100+ remote offices connecting to them. Fortunately I happen to have a couple of 4351 ISRs rated for significantly greater encrypted throughput. Is there any way I could upgrade the...
This article assumes you have the basic knowledge and experience with Cisco DNA Center and Identity Services Engine (ISE).Note when reading this doc the "Authentication Policy" referred to is part of Cisco DNA Center Onboarding section and ha...