Abstract
Quality-of-service (QoS) routing satisfies application performance requirements and optimizes network resource usage but effective path-selection schemes require the distribution of link-state information, which can impose a significant burden on the bandwidth and processing resources in the network. We investigate the fundamental trade-off between network overheads and the quality of routing decisions in the context of the source-directed link-state routing protocols proposed for future IP and ATM networks. Through extensive simulation experiments with several representative network topologies and traffic patterns, we uncover the effects of stale link-state information, random fluctuations in traffic load, and variations of the link-cost metric on the routing and signalling overheads. The paper concludes by summarizing our key results as a list of guidelines for designing efficient quality-of-service routing policies in large backbone networks.
| Original language | English (US) |
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| Pages | 42-51 |
| Number of pages | 10 |
| State | Published - 1998 |
| Externally published | Yes |
| Event | Proceedings of the 1998 International Conference on Network Protocols, ICNP - Austin, TX, USA Duration: Oct 13 1998 → Oct 16 1998 |
Other
| Other | Proceedings of the 1998 International Conference on Network Protocols, ICNP |
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| City | Austin, TX, USA |
| Period | 10/13/98 → 10/16/98 |
All Science Journal Classification (ASJC) codes
- Software