'sho spanning-tree vlan <VLAN_ID> detail | inc BPDU|Port' Look for ports with BPDU received > 0
A switch coming up will probably send at least 1 BPDU before determining it's not the root. This of course, is assuming the switch at the other end actually talks STP :) Ken Matlock Network Analyst Exempla Healthcare (303) 467-4671 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Peter Pauly Sent: Thursday, July 21, 2011 7:37 AM To: [email protected] Subject: [c-nsp] Determining which ports have another switch attached? Is there an easy way to determine which swtich ports have another switch attached to them (assume non-CDP supporting) before enabling bpduguard? _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ *** Exempla Confidentiality Notice *** The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any other dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me immediately by replying to the message and deleting it from your computer. Thank you. *** Exempla Confidentiality Notice *** _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
