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2002
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QoS Extension to BGP

9 years 6 months ago
QoS Extension to BGP
To enable the end-to-end Quality of Service (QoS) guarantees in the Internet, based on the Border Gateway Protocol (BGP), inter-domain QoS advertising and routing are important. However, little research has been done in this area so far. Two major challenges, scalability and heterogeneity, make the QoS extension to BGP difficult. Two existing approaches, the Link Capacity Routing (LCR) and the Available Bandwidth Routing (ABR), address QoS advertising and routing in BGP with respect to bandwidth metric. But neither of them can solve the two challenges well. In this paper, BGP is extended to advertise bandwidth information. But, instead of using link capacities or instantaneous available bandwidth values, a novel QoS metric, Available Bandwidth Index (ABI), is defined and used to perform bandwidth advertising and routing. The two maributions of ABI are: (1) ABI dynamically abstracts available bandwidth into a probability interval, therefore, it is very flexible to represent heteroge...
Li Xiao, King-Shan Lui, Jun Wang, Klara Nahrstedt
Added 14 Jul 2010
Updated 14 Jul 2010
Type Conference
Year 2002
Where ICNP
Authors Li Xiao, King-Shan Lui, Jun Wang, Klara Nahrstedt
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