At 01:50 AM 4/1/02, Larry Letterman wrote: >For the most part here at Cisco, we have no guarrantee >that setting a switch to root will stop another switch from >coming up as root. However, we set all our roots/sec roots by issuing >the set spantree root command. This should lower the prio. of the >root/sec root switches to insure that they will always be the roots... > >We also use portfast to insure no unwanted switches are plugged into >our network and allowed to become live....
Does that really work? A port in portfast mode still listens to BPDUs in case another switch instead of a workstation gets connected. If another switch gets connected, the port will do its normal blocking, listening, learning, and forwarding state transitions. I don't think just configuring portfast will stop an unwanted switch from becoming live?? Were you thinking of something else maybe? Thanks, Priscilla >Larry Letterman >Cisco Systems >[EMAIL PROTECTED] > > >-----Original Message----- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] >Sent: Sunday, March 31, 2002 10:12 PM >To: [EMAIL PROTECTED] >Subject: RE: root switch [7:39975] > > >as you know, my switch doesn't become a root swtich,so i set a higher >priority in my switch,which method can be sure my swithc never come to root? >thanks. ________________________ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=40115&t=39975 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
