InterVLAN Routing: 3 options

hello and this is sunny welcome back today my topic is three options of inter VLAN routing as we know each villain is different and isolated a broadcast Adame hosts on separated villains are not able to communicate even if they are connected to the same switch however communications between different the villains are necessary in many cases in other words we must define a ways to route the traffic between different reliance this is known as inter VLAN routing today I would like to talk about three options of inter VLAN routing option one using a router this option is traditional approach we need a physical router and connect each VLAN to a different physical router interface here we have three villains on this switch we learn 10 20 and 30 each villain has its own physical link connecting it to each different physical router interface with this approach the rotor does not need know about villains it just treats every single villain as every single different physical link for example computer a our villain terian sends a package to a computer see on VLAN 30 the switch would deliver the package to the router to the VLAN 10 link under the roger forwards the packet to the switch through the VLAN 30 link then the switch forwards it to computer see routing and switching are achieved however this traditional approach has a serious limitation the number of physical interfaces on a roger are limited and expensive we need every cable going from the switch to the router for every single VLAN this method works fine with two or three villains but it is a challenging with many villains on a big network to overcome this limitation we use option to router on a stick inter VLAN routing wrote on a stick is a setup that consists of a router and a switch which are connected using wyeth netlink configured as a Oh too darn cute trunk with this approach the router must understand the concept of villain and the Igoe a OH - 1q standard with the option 1 each cable going from switch to the router is configured as access link with rod on a stick inter VLAN routing we configured one single link as a trunk physically we have only one interface on the router but many logical sub interfaces are created one sub-interface / villa each sub interface is a configured as a default gateway for each VLAN we compute one on south villain since IP packet - computer - on finance villain the switch would deliver it to the sells villain gateway a logical sub interface on the router then the router checks is routing table and it forwards the IP packet to the computer - through the Gateway of Finance villa physically there is only one link but logically these are two separate links in this example three multi-layer switch interval and routing with the rod on a stick approach we need a router and we need a switch but with a multi-layer switch or sometimes we call a layer 3 switch switching and erosion are achieved inside one box multi-layer switches support switch virtual interfaces or as we eyes as the eyes are logical interfaces that can act as gateways and perform routing they behave like a physical interfaces on a router the hell IP addresses associated with their own weland's and they are completely virtual similar to a logical sub interface on a router on a stick one as VI can be created for each VLAN there is one-to-one mapping between the lines and VSV eyes when computer a on VLAN 10 wants to talk to come to the see on VLAN 30 it sends the packet first to the multi-layer switch through his ass VI the switch X is routing table and forwards the packet to computer C 3 is on Villa s VI I hope this video is helpful if you want to learn network systematically please check out my playlist they are organized by topics thank you very much and I'll see you next time [Music] you

Channel: Sunny Classroom

Views: 69,507

Rating: 4.9776673 out of 5

Keywords: sunny classroom+ CompTIA network+ CompTIA Security+ networking cyber security + CCNA, CCENT, CCNP, VLAN, interVLAN routing, IEEE 802.1q standard, trunk, trunking, trunk port, access port, router on-a-stick, multilayer switch, layer-3 switch, switch virtual interface (SVI), subinterfaces, router interface, switching and routing

Id: NmkFzDrZsXM

Length: 5min 21sec (321 seconds)

Published: Sun Aug 11 2019