portfast
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From: tony on 7 Sep 2006 17:03 Is it a good idea to enable portfast on ports connected to servers and workstations?
From: Walter Roberson on 7 Sep 2006 17:20 In article <edq1eo$1md$1(a)news.Stanford.EDU>, tony <none(a)none.com> wrote: >Is it a good idea to enable portfast on ports connected to servers and >workstations? Only if you have a very strict change control procedure. If you have more than one person who is allowed to reconfigure the cabling without checking it carefully with the other people, then eventually you *will* get unexpected devices connected. Also, these days servers are increasingly acting as routers, and increasingly supporting VLANs, so unexpected spanning trees are likely to be generated.
From: jw on 7 Sep 2006 20:32 If you are the only plugging things in sure. If not someone may plug in another switch at some point and cause some grief. Spanning tree storms aren't funny! "Walter Roberson" <roberson(a)hushmail.com> wrote in message news:q20Mg.528838$IK3.420030(a)pd7tw1no... > In article <edq1eo$1md$1(a)news.Stanford.EDU>, tony <none(a)none.com> wrote: >>Is it a good idea to enable portfast on ports connected to servers and >>workstations? > > Only if you have a very strict change control procedure. If you have > more than one person who is allowed to reconfigure the cabling without > checking it carefully with the other people, then eventually you *will* > get unexpected devices connected. > > Also, these days servers are increasingly acting as routers, and > increasingly supporting VLANs, so unexpected spanning trees > are likely to be generated.
From: CCIE 15766 on 7 Sep 2006 23:32 tony wrote: > Is it a good idea to enable portfast on ports connected to servers and > workstations? Enabling PortFast is always good if the port connected to a server or workstation only. Even the server may act as a router, it is OK to enable PortFast, because a router doesn't participate in STP. To prevent human errors, you should always label the cable that has enabled PortFast, and enable BPDU Guard on the switch.
From: James on 8 Sep 2006 00:54 Enabling PortFast on access ports also prevents the Switch issuing STP Topology Change Notifications. Excessive TCN's can have an impact on network performance - a TCN is sent every time a port goes up or down unless PortFast is used. Basically always enable PortFast on user ports. James CCIE 15766 wrote: > tony wrote: > > Is it a good idea to enable portfast on ports connected to servers and > > workstations? > > Enabling PortFast is always good if the port connected to a server or > workstation only. > Even the server may act as a router, it is OK to enable PortFast, > because a router doesn't participate in STP. > > To prevent human errors, you should always label the cable that has > enabled PortFast, and enable BPDU Guard on the switch.
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