Quality of service: old idea, new options
ATM has offered QoS guarantees for nearly a decade, but the push is now for IP-based solutions. IP is ubiquitous in today's congested networks. Applications are more complex, users are more demanding, standards bodies are more receptive, and technology is more sophisticated. All this has focuse...
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| Veröffentlicht in: | IT professional 1999-09, Vol.1 (5), p.37-44 |
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| creator | Bragg, A.W. |
| description | ATM has offered QoS guarantees for nearly a decade, but the push is now for IP-based solutions. IP is ubiquitous in today's congested networks. Applications are more complex, users are more demanding, standards bodies are more receptive, and technology is more sophisticated. All this has focused attention on ways to add QoS to IP networks without exorbitant cost. But with progress has come some confusion. Telecommunications carriers and service providers are already enticing customers by offering two or three distinct classes of service over their IP networks. Vendors are beginning to ship QoS-capable hardware and software. ATM is firmly established in the Internet's core. A lot has happened in a short time, which means that users and providers must be aware of where things are going and what the various QoS technologies can actually do. Some QoS mechanisms deliver strict, absolute performance guarantees. Others merely offer assurances that one service class will take priority over another when resources are scarce. |
| doi_str_mv | 10.1109/6294.793669 |
| format | Article |
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| issn | 1520-9202 1941-045X |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Asynchronous transfer mode Bandwidth Bandwidths Costs Customer services Customers Delay Frame relay Guarantees Hardware Information technology Internet Internet Protocol Internet telephony IP (Internet Protocol) IP networks Networks Quality of service Resource management Service introduction Software Standards organizations Traffic congestion Virtual private networks |
| title | Quality of service: old idea, new options |
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