Interview preparation for Network Engineers.

Types of STP (Spanning Tree Protocol)       VTP (VLAN Trunking Protocol) – Table of Contents:     1. Uplinkfast Why do we need uplinkfast Uplinkfast effect and its working     2. Backbonefast What is BackboneFast and its Working     3. Portfast     4.  RSTP (Rapid STP) RSTP Port States RSTP Ports     5.  PVST & PVST+ (Per VLAN STP)     6.  MSTP (Multiple STP) Steps to Configure     7.  Common Interview Questions asked from Types of STP for           Network Engineers. STP Uplinkfast:   - Cisco proprietary feature. - Uplinkfast is for speeding convergence when a direct link to an upstream switch fails.         Specifically for access-layer switches. - When uplinkfast is enabled, it is enabled for the entire switch & all VLANs. Command: show spanning-tree Command: spanning-tree uplinkfa...

  STP (Spanning Tree Protocol)   STP (Spanning Tree Protocol) – Table of Contents Redundancy. Why do we need STP. Example to explain Broadcast storm, Multiple frame copies, Mac table inconsistency. How STP works. BPDU (Bridge Protocol Data Unit) and Its Types. STP Election Process and STP Port states.  BPDU Timers. Interview Questions asked from Network Engineers from STP. •   Redundancy: - Protecting the network from single point of failure is called redundancy. Single point of failure means that if one device/port/link goes down the traffic should failover or pass through the other device/port/link. - Failure of single network link, single device, or a critical port on a switch causes network downtime. - Redundancy is required in the network design in order to maintain high degree of reliability & eliminate any single point of failure. - Achieve redundancy in switches by connecting them with multiple links. - It reduce congestion & support high ...