- Read today’s lesson notes (below)
- Review yesterday’s lesson notes
- Complete today’s lab
- Read the ICND2 cram guide
- Spend 15 minutes on the subnetting.org website
The IEEE 802.1D standard was designed at a time when the recovery of connectivity after an outage was within a minute or so, which was considered adequate performance. With the IEEE 802.1D STP, recovery takes around 50 seconds, which includes 20 seconds for the Max Age timer to expire and then an additional 30 seconds for the port to transition from the Blocking state to the Forwarding state.
As computer technology evolved, and networks became more critical, it became apparent that more rapid network convergence was required. Cisco addressed this requirement by developing some proprietary enhancements to STP that include Backbone Fast and Uplink Fast.
Today you will learn about the following:
- The need for RSTP
- RSTP configuration
This lesson maps to the following CCNA syllabus requirements:
ü Identify enhanced switching technologies
- RSTP
- PVSTP