Flexible Algorithm (Flex-Algo) is an emerging traffic engineering solution under standardization for IP segment-routing based networks, targeted to address the burgeoning requirements for enhanced Quality of Service (...
详细信息
ISBN:
(纸本)9798350377330;9798350377323
Flexible Algorithm (Flex-Algo) is an emerging traffic engineering solution under standardization for IP segment-routing based networks, targeted to address the burgeoning requirements for enhanced Quality of Service (QoS) through dynamic and intelligent routing optimizations. This paper explores the potential of Flex-Algo in adapting QoS-based traffic profiles, while minimizing network latency and optimizing resource allocation across in heterogeneous network scenarios. In this context, we propose an operational set up where two IP topologies with different IGP weights are used for latency-constrained and not-latency constrained traffic, in two different flex-algos. We compare this with baseline setups with one flex-algo, tuned for minimizing latency or for minimizing number of IP hops. We apply this to the dimensioning of three networks. Results show how flex-algo permits reducing network costs while meeting latency constraints, by providing lower latency paths only to those flows requiring it.
With the complexity and overload of IP connectivity and the variety of protocols that each technology and applications has been introducing to keep the human beings connected to the modern Internet, especially in time...
详细信息
ISBN:
(纸本)9781665440677
With the complexity and overload of IP connectivity and the variety of protocols that each technology and applications has been introducing to keep the human beings connected to the modern Internet, especially in times of COVID-19 pandemic, it is a priority for Service Providers to seek a simplification of their infrastructures to make them more scalable, efficient, simplified, and profitable. In this Proof-of-Concept (PoC) paper, segmentrouting (SR) is presented as an alternative to interconnect business networks in IPv4 and IPv6 scenarios where Headquarter-Branches connectivity is required. This paper begins by defining SR and its fundamentals. To test theory in practice, three scenarios are emulated and compared: MPLS-LDP, SR for IPv4 infrastructures, and finally, SR for IPv6 networks. The aim of the present paper is to provide a more understandable vision of segmentrouting and its operation in ISP networks.
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