Virtual LANs (VLANs) permit hosts connected to a LAN switch to be grouped together into logical groups as a function of some management policy rather than simply of their physical location. Commercial LAN switches support a variety of policies based on either physical or logical addresses, protocol types, tagged frames, or user defined rules. The objective of these policies is the same: to reduce the amount of traffic that needs to be routed by grouping together hosts which are likely to communicate with each other into the same virtual LAN. This paper proposes a novel and more direct approach, it shows how VLANs can be created and removed dynamically as a function of the measured traffic patterns across the network. This is both simpler than configuring many static rules and permits the VLAN configuration to adapt to the evolution in the traffic patterns. The latter point is especially important in future LANs supporting peer-to-peer continuous media services, such as IP telephony or video-conferencing, in which clusters of hosts come together to communicate with each other intensively for relatively short periods of time and then form into new clusters.
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Automatic VLAN creation based on on-line measurement
Rooney, Sean; Hörtnagl, Christian; Krause, Jens
Follow ACM SIGCOMM Computer Communication Review
, Volume 29 (3)
Association for Computing Machinery – Jul 1, 1999
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