![reflector 3 on cisco network reflector 3 on cisco network](https://www.efficientip.com/wp-content/uploads/2020/02/Banner-Cisco-Connect-Raleigh_social.jpg)
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Multiple links across multiple devices provides better redundancy. It’s likely you’re going to need to connect your ACI fabric to your current network just to get traffic between the two environments. Perhaps even more necessary is creating layer 3 outside access or even doing both layer 2 and layer 3. Better Scalability: Cisco Three Layer Network Model allows us to efficiently accomodate future growth.īetter Redundancy: Cisco Three Layer Network Model provides better redundancy. Last month I wrote about creating layer 2 outside access in Cisco ACI. The main benefits of Cisco Three-Layer hierarchical model is that it helps to design, deploy and maintain a scalable, trustworthy, cost effective hierarchical internetwork.īetter Performance: Cisco Three Layer Network Model allows in creating high performance networksīetter management & troubleshooting: Cisco Three Layer Network Model allows better network management and isolate causes of network trouble.īetter Filter/Policy creation and application: Cisco Three Layer Network Model allows better filter/policy creation application. Benefits of Cisco Three-Layer hierarchical model Access layer switches ensures that packets are delivered to the end devices. Access layerĪccess layer includes acces switches which are connected to the end devices (Computers, Printers, Servers etc). Distribution Layer ensures that packets are properly routed between subnets and VLANs in your enterprise. Distribution Layer include high-end layer 3 switches. A wireless 802.11ac or wired connection is highly. Therefore the Distribution Layer defines policy for the network. A local network connection between devices is required for device mirroring. The purpose of this layer is to provide boundary definition by implementing access lists and other filters. The Distribution Layer is located between the access and core layers. The switches operating at core layer switches packets as fast as possible. The Core Layer routers move information on the network as fast as possible. Core Layer routers are used to merge geographically separated networks. The above picture can further explained based on below picture.Ĭore Layer consists of biggest, fastest, and most expensive routers with the highest model numbers and Core Layer is considered as the back bone of networks. Cisco Three-Layer network model is the preferred approach to network design. Cisco suggests a Three−Tier (Three Layer) hierarchical network model, that consists of three layers: the Core layer, the Distribution layer, and the Access layer.