Frame relay won in the WAN over ATM, which proved too expensive despite its good points, such as five levels of QoS. Now MPLS is pushing aside both. The debate about frame relay vs. ATM as WAN ...
Circuits as WAN connections battled successfully against packets for years because they guaranteed bandwidth, no matter what. If you bought a T-1 circuit, the service provider nailed up 1.5Mbps from ...
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