Comparing Private Line, Frame Relay, ATM, Ethernet and IP VPNs
sponsored by AT&T Corp

There are compelling reasons to use Layer 1, 2 and 3 WAN services and a given enterprise may use one or a mix of service types.

Each service type has its place and organizations should build WAN strategies based on application mix, traffic patterns, speed requirements and an inherent "build or buy" networking philosophy. This whitepaper helps enterprises choose the appropriate WAN solution.

Available Resources from AT&T Corp
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