摘要： 视频会议、等网络应用的兴起导致了组播方式的广泛应用,组播成为广域网内一对多数据通信的最佳方VoD式。在统一管理的大型城域网内,技术可以让人们按照应用需求划分逻辑子网,实现局域网内高效的一对多数据VLAN广播通信。与组播技术相比,技术不需要在第三层上的操作,它直接在第二层上实现,可以在主机间进行高VLANVLAN速通信。因此,只要实现的按需动态配置组网,让用户端主机灵活地选择、加入或退出,就可以在大型城域VLANVLAN网内利用和广播实现一种比组播效率更高的一对多的通信。该本文对组播、广播和的特点进行了分析,仔细VLANVLAN研究了如何利用和的管理来实现用户端主机的动态加入和退出;并设计实现了一个具SNMPVLAN-aware bridgeMIBVLAN有实际应用价值的VLAN管理系统。

关键词: 组播, VLAN, SNMP, 动态配置

Abstract: Multicasting as a one-to-multiple data transport mode facilitates network applications such as online video meeting, VoD, etc., and makes itself the optimum (one to multiple )data transporting mode on the WAN. VLAN(Virtual Local Area Lan) as a technology initiated in IEEE802.1Q enables the segmentation of network logically based on differentiable applications on the largescale enterprise network or other well organized and managed network. What is more, VLAN is implemented on the second layer which makes the transporting via VLAN is much faster. With the complementing of dynamic configuration on VLAN which supports the end stations' auto-join in and auto-quit from VLAN, combining VLAN tech nology and broadcast transport mode canaccomplish a more efficient one-to-multiple data transporting mode other than multicast on these kinds of well-organized large-scale network. The paper gives a specific analysis about broadcast, multicast and VLAN tech., proceeds a deep discussion on how to use SNMP and MIB of VLAN-aware bridge to implement the dynamic configuration of VLAN, designs and implements an applicable VLAN management system .

中图分类号: 

• TP393.07