Business Services Industry
VLANs: can Layer 3 save the day. (virtual local area networks)
Business Communications Review, December, 1996 by WInkler, Kathrin
The first VLAN crop was a dud. Maybe stepping up the OSI stack will help. Product development almost always occurs in advance of market demand. Network managers are deluged with claims regarding "next-generation" networks, even though precious few have even begun to implement the current crop of technologies and products.
A classic example is what's happening with Layer 2 virtual LANs, which define membership in a LAN by end-station MAC address, switchport ID or a combination of the two. In single-switch configurations, they're relatively straightforward to implement and have been deployed to achieve the following: * To provide secure support for distributed communities of interest. * To reduce unwanted broadcast and multicast traffic on the...
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