Since you already seem to know what they are my thinking is that you are confused with the "default" portion? These commands are global commands and will affect all access ports on the switch. The differences would be as follows
Spanning-tree portfast (enables portfast on individual interfaces) Spanning-tree portfast bpduguard (enables bpduguard on an individual interface) Spanning-tree portfast bpudfilter (enables bpdufilter on an individual interface) Spanning-tree portfast default (enables portfast globally, all interface are affected) Spanning-tree portfast bpduguard default (enables bpduguard globally, al access ports are affected) Spanning-tree portfast bpdufilter default (enables bpdufilter globally, al access ports are affected) http://www.networkers-online.com/blog/2008/08/what-is-bpdu-filter/ http://www.shafagh.net/2008/05/ccie-lab-bpduguard-vs-bpdufilter.html http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.1E/native/command/reference/S1.html#wp1180453 Steve ________________________________________ From: [email protected] [[email protected]] On Behalf Of Bodnar, Edward [[email protected]] Sent: Saturday, July 31, 2010 7:27 PM To: OSL Routing and Switching Subject: [OSL | CCIE_RS] Can anybody help me out soem Very simple topic but I keep getting turned around on this. Does anybody have a link that can clear up what the difference are? I know potfast no problem. And bpduguard and bpdufilter seem to make sense to me. But starting to use them with the default option and I start to get cloudy. Spanning-tree portfast Spanning-tree portfast bpduguard Spanning-tree portfast bpudfilter Spanning-tree portfast bpduguard default Spanning-tree portfast bpdufilter default UHS Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient (s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution of this information is prohibited. If this was sent to you in error, please notify the sender by reply e-mail and destroy all copies of the original message. _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
