MAC Based Dynamic VLAN Tagging with OpenFlow for WLAN Access Networks

Many network device vendors are providing a vendor specific VLAN based access solutions for WLAN clients. This applications allows network operators to specify WLAN devices which automatically fall into their department specific networks ans allows them to access their local resources like e.g. printers. The configuration of these VLAN mappings is usually manufacturer specific and depends also on the local VLAN policies. However, the presented OpenFlow approach on the other hand presents a solution to encapsulate this functionality as network application. Thus, an architecture, implementation, and evaluation is presented in order to demonstrate that this particular functionality can be easily realized in an OpenFlow network application

A new SNMP-based algorithm for network traffic balancing in virtual local area networks

Virtual local area network (VLAN). s are being created for improve performance, easy to manage security and ensure address on local area networks. This paper introduces a new approach for load balancing on virtual local area networks. The method which is developed for this approach, is dynamically changing the clients ports VLAN membership according to VLAN's total traffic of the same security policy. The clients which have to register to security VLAN, can access their permission level source at all physically location of LAN, this is the flexibility of the method. The VLAN count which have to be on the LAN, can adjust parametrically or default constantly. In the algorithm which developed for this approach, the hosts belong to traffic on the network, ensures as much as possible equal or nearest distributes homogeneous on the VLAN's. In this way the VLAN's have same or nearest traffic value. A software has developed for testing functionality of this method which using SNMP protocol and reached to the aims by testing on the real network

Diseño e Implementación de VLANs en Entornos Universitarios Basados en Redes Definidas por Software (SDN)

Una Campus Area Network (CAN) es una red de infraestructura computacional que interconecta varias Local Area Network (LAN) dentro de un campus, abarcando múltiples ubicaciones y proporcionando conectividad a dispositivos en toda la CAN. A medida que crece en tamaño y complejidad, se fragmenta en Virtual Local Area Networks (VLANs) para optimizar eficiencia y seguridad. Las redes definidas por software (SDN) brindan ventajas al permitir la asignación dinámica de VLANs. La separación de control y datos en una SDN facilita la flexibilidad en la gestión de VLANs. Este trabajo propone diseñar y poner en práctica un entorno de pruebas y análisis de VLANs basadas en SDN para contextos universitarios. Utiliza herramientas de código abierto para configurar una CAN a pequeña escala. Primero, se emula una red clásica con Raspberry Pi actuando como conmutadores de red y Open vSwitch (OvS), asignando VLANs mediante comandos de terminal. Luego, se implementa el controlador OpenDaylight (ODL) para establecer una SDN y asignar VLANs de manera estática. La tercera etapa implica la creación de un servidor de acceso a la red (NAC) en Python, utilizando la capa de aplicación de la SDN para obtener información topológica y VLANs dinámicamente. Los resultados obtenidos se presentan junto con conclusiones relevantes. Además, se proporciona una guía general para la asignación dinámica de VLANs en una CAN con SDN. Este estudio explora la implementación y beneficios de VLANs en una CAN, destacando cómo las SDN ofrecen adaptabilidad y agilidad en la administración de redes, especialmente en una CAN.A Campus Area Network (CAN) is a computational infrastructure network that interconnects multiple Local Area Networks (LANs) within a campus, spanning multiple locations and providing connectivity to devices across the entire CAN. As it grows in size and complexity, it is divided into Virtual Local Area Networks (VLANs) to optimize efficiency and security. Software-Defined Networks (SDNs) offer advantages by enabling dynamic assignment of VLANs. The separation of control and data in an SDN facilitates flexibility in VLAN management. This work proposes designing and implementing a testing and analysis environment for SDN-based VLANs in university settings. It utilizes open-source tools to set up a small-scale CAN. Initially, a classic network is emulated using Raspberry Pi as network switches and Open vSwitch (OvS), with VLANs assigned through terminal commands. Subsequently, the OpenDaylight (ODL) controller is deployed to establish an SDN and statically allocate VLANs. The third phase involves creating a Network Access Control (NAC) server in Python, utilizing the SDN's application layer to dynamically obtain topological information and VLANs. The obtained results are presented alongside relevant conclusions. Additionally, a comprehensive guide is provided for dynamically assigning VLANs in a CAN with SDN. This study explores the implementation and benefits of VLANs in a CAN, highlighting how SDNs offer adaptability and agility in network administration, particularly within a CAN context.0000-0002-6114-117