You forgot port-priority :) It would look like this
Root = lowest priority or mac address. Root Port election: 1. Lowest cost to root 2. Lowest Sending Bridge ID 3. Lowest Port Priority of sender 4. Lowest interface number Cheers, Donald Robb Productive Networks / Network Consultant CCIE Written, CCIP, CCSP, CCDP, CCNP: R&S/Security, CCNA: DC/Voice, JNCIP, SCP, MCSA 2012, VCA-DCV, CCA: XenApp 6, Security+, CCSE.R65, PACE -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ahmed Haji Munye Sent: July 29, 2014 1:16 PM To: CC IE Subject: [OSL | CCIE_RS] STP Tie breaking Hi Please correct me if I am wrong and complete what I missed All tie-breaking STP decisions are based on the following sequence of four conditions in order to reach the root bridge: 1.Lowest root bridge ID --> Bridge priority, default is 32768 2.Lowest root path cost to root bridge --> Path cost, default is 128 3.Lowest sender bridge ID --> 4.Lowest sender port ID --> Fa0/1 and Fa0/2, then Fa0/1 is elected _______________________________________________ Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: iPexpert on YouTube: www.youtube.com/ipexpertinc _______________________________________________ Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: iPexpert on YouTube: www.youtube.com/ipexpertinc
