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The Border Gateway Protocol governs the overall routing in the Internet. With the time, it has been overloaded with functions which is was not initially designed for. The main example is Traffic Engineering. Internet Service Providers need to adjust the traffic on their peerings and in absence of a better alternative, use Trial and Error techniques based on manipulating the Autonomous System Path...
Routers configure their paths based on the Link State Database (LSDB) in order to meet service requirements and Quality of Service (QoS) guarantee. Internet routing can be categorized into intra domain routing and inter domain routing, and QoS should be guaranteed both at the intra and inter domains for end-to-end QoS guarantee. The LSDB can be easily managed and updated at the inter domain routing...
This paper evaluates the efficiency of set of modifications to the border gateway protocol (BGP) which aim at providing flexible traffic engineering (TE) across multiple GMPLS domains. A short overview and analysis of existing proposals for BGP-TE extensions is presented. Based on that, three modifications are proposed for support of multi-domain TE: an end-to-end path-specific TE attribute, a border...
In the Internet, in order to guarantee Quality of Service (QoS), all routers have to manage their Link State Databases (LSDBs) and determine a routing path that satisfies service requirements based on the LSDB. In addition, routing protocols have to provide QoS not only in the intra- domain but also in the inter-domain to enable the end to end QoS guarantee. In the intra-domain routing, it is possible...
The border gateway protocol (BGP) is the dominant inter-domain routing protocol in IP-based networks today. However, the requirements of emerging applications have exposed limitations in the current BGP protocol. In particular, future military IP networks, exemplified by the global information grid (GIG), will carry a diverse mix of applications with widely different quality of service (QoS) requirements...
Inter-domain routing stability and convergence delay have significant effect on QoS in Internet RFD is a mechanism to limit route oscillation from spreading wildly and is deemed as a key contributor for Internet routing stability. Recent research discovers that RFD may exacerbate relatively stable routes influenced by path exploration procedure and the interaction between RFD reuse timers. In this...
Providing end-to-end quality of service (QoS) guarantees for interdomain routing remains a challenge for next generation Internet. As various real-time, mission-critical, and bandwidth-sensitive applications are migrating to the IP networks the need for end-to-end QoS is becoming acute. Large existing base of BGP compliant networks rules out the acceptability of new routing protocol. However, inherent...
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