This document specifies Multiprotocol Label Switching (MPLS) Traffic Engineering Soft Preemption, a suite of protocol modifications extending the concept of preemption with the goal of reducing or eliminating traffic disruption of preempted Traffic Engineering Label Switched Paths (TE LSPs). Initially, MPLS RSVP-TE was defined with support for only immediate TE LSP displacement upon preemption....

We argue that today’s ad hoc inter-domain traffic engineering techniques be replaced with an architecture that is based on explicit coordination between ISPs. With explicit coordination, ISPs exchange information about their traffic and routing options, and all ISPs impacted by a potential routing change negotiate the actual change. This increases efficiency because it allows ISPs to find “win-...

Preamble In a few years, the Internet has rapidly evolved from a research network serving a handful of users to a huge interconnection of about 350 million hosts (June 2005 [ISC05]). In this way, the Internet is the largest distributed system ever built. The Internet is organized in a multitude of administratively independent networks called domains or Autonomous Systems (AS). For example, an A...

This paper presents an outlook on the perspectives of applying fuzzy logic techniques in traffic and transportation systems analysis and control. To this end, the theoretical and methodological principles of the fuzzy logic approach are outlined. An overview is given of the fuzzy logic applications in the transportation and traffic-engineering field, especially in the areas of estimation and pr...

Destination-based forwarding in traditional IP routers has not been able to take full advantage of multiple paths that frequently exist in Internet Service Provider Networks. As a result, the networks may not operate efficiently, especially when the traffic patterns are dynamic. This paper describes a multipath adaptive traffic engineering mechanism, called MATE, which is targeted for switched ...

In recent years, the time variation of Internet traffic has increased due to the growth of streaming and cloud services. Backbone networks must accommodate such traffic without congestion. Traffic engineering with traffic prediction is one approach to stably accommodating time-varying traffic. In this approach, routes are calculated from predicted traffic to avoid congestion, but predictions ma...

Currently, traffic engineering means circuit or virtual circuit switched technology even in packet switched networks. The need for a simpler and more suitable device for IP networks is getting stronger. In this paper, we present a new architecture for IP layer traffic engineering called Core State Limited Load Sharing (CSLLS). Our solution is highly tunable between low complexity – low granular...

Destination-based forwarding in traditional IP routers has not been able to take full advantage of multiple paths that frequently exist in Internet Service Provider Networks. As a result, the networks may not operate efficiently, especially when the traffic patterns are dynamic. This paper describes a multipath adaptive traffic engineering scheme, called MATE, which is targeted for switched net...