Posts
Router-on-a-stick · Router-on-a-stick is nothing but a setup between Layer 2 switch and router connected using Ethernet link (VLAN trunk link). · If there are 3 VLANs configured in a switch, these 3 VLANs cannot communicate with each other using L2 switches as they are in 3 different subnets. Layer 2 frames can only communicate inside VLAN. Only routers or layer 3 switches can route packets between VLANs. · A Layer2 switch with 3 VLANs is connected to the router using a single physical link. This design is sometimes called Router-on-a-stick. · Router-on-a-stick design is not used in L3 switches. Layer 3 switches act as a Layer 2 LAN switch as well as a Layer 3 router. · Layer 3 switches are also known as multilayer switches. ...
Technology simplified. This blog explains Computers and Networking basics in simple words which transfers my knowledge to others and to review myself the explained concepts in future. Our vision is to help our readers to understand the basic concepts of PC and networking. This little effort may help CCENT, CCNA and A+ certifications study group.