1. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir CCNP-SWITCHING 300-115 Mohamed Samir YouTube channel Double CCIEs #27042(R/S&SP)

2. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir Part III Working with Redundant Links

3. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir Rapid Spanning Tree Protocol

4. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir SW1 SW4 FA0/2 SW3 SW2 FA0/1 FA0/11 FA0/1 FA0/2

5. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir Multiple spanning tree

6. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir MST attributes MST configuration name (32 characters) MST configuration revision number (0 to 65535) MST instance-to-VLAN mapping table (4096 entries) 16 MST instance

7. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir Spanning-Tree Instances Within MST Within a single MST region, an Internal Spanning Tree (IST) The IST presents the entire region as a single virtual bridge to the CST outside.

8. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir Concepts Behind MST Instances

9. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir MST Configuration Switch(config)# spanning-tree mode mst Switch(config)# spanning-tree mst configuration Switch(config-mst)# name name Switch(config-mst)# revision version Switch(config-mst)# instance instance-id vlan vlan-list Switch(config-mst)# show pending

10. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir Any questions ?

11. © 2015 Mohamed Samir YouTube channel All rights reserved. www.mohamedsamir.comMohamed Samir Thank you for your time ! شكرا جزاكم الله خير