1.4 and 2.3

• VLAN


  Separates network at L2
• 802.1Q


  VLAN protocol
• Trunk Port


  An interface that can carry multiple VLANs
• Subinterfaces


  Logical interface sharing a single physical interface
• Switched Virtual Interfaces


  Virtual Interface on a L3 switch
• Inter-VLAN Routing


  Paths that send traffic between VLANs
• SVI


  Virtual Interface on a switch
• Tag


  Inserted into L2 header for VLAN information
• Router on a Stick


  Allows inter-VLAN routing from Layer 2 switch to router
• Default Gateway

  Characteristic of SVI, provides an exit point for traffic
• Subnet


  A logical subdivision of an IP network
• Granular filtering


  Fine-tuned control over network traffic based on specific criteria
• Layer 2 switch


  Operates at the data link layer of the OSI model
• Router on a stick


  A setup where a single router interface is used for inter-VLAN routing
• Layer 3 switch


  Combines features of a switch and a router, operating at the network layer