Multi-Topology (MT) Routing in OSPF

Nguyen, Liem; Pšenák, Peter; Mirtorabi, Sina; Pillay-Esnault, Padma; Roy, Abhay

doi:10.17487/rfc4915

Cited by 117 publications

(88 citation statements)

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“…Multiple such sub-TLVs can exist in a single OSPF Extended Link TLV, one for each topology [RFC4915]. Each sub-TLV will have a unique Multi-Topology Identifier (MT-ID) and will adhere to the advertisement rules defined in Section 3.4 of [RFC4915].…”

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confidence: 99%

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OSPF Two-Part Metric

Wang¹,

Lindem²,

Zhang³

2016

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confidence: 99%

“…Each sub-TLV will have a unique Multi-Topology Identifier (MT-ID) and will adhere to the advertisement rules defined in Section 3.4 of [RFC4915]. The OSPF Extended Link TLV identifies the transit link to the network and is part of an OSPFv2 Extended-Link Opaque LSA.…”

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confidence: 99%

OSPF Two-Part Metric

Wang¹,

Lindem²,

Zhang³

2016

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“…A requirement for setting up a logical routing topology [RFC4915] [RFC5120] may also be considered, e.g., to facilitate the management of the nodes that are involved in the forwarding of the traffic as defined in the CPP.…”

Section: Routing and Forwardingmentioning

confidence: 99%

IP Connectivity Provisioning Profile (CPP)

Wang¹,

Jacquenet²,

Boucadair³

2014

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This document describes the Connectivity Provisioning Profile (CPP) and proposes a CPP template to capture IP/MPLS connectivity requirements to be met within a service delivery context (e.g., Voice over IP or IP TV). The CPP defines the set of IP transfer parameters to be supported by the underlying transport network together with a reachability scope and bandwidth/capacity needs. Appropriate performance metrics, such as one-way delay or one-way delay variation, are used to characterize an IP transfer service. Both global and restricted reachability scopes can be captured in the CPP.

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“…Instead of re-assigning IGP link weights in response to traffic fluctuations, we adopt multi-topology IGPs (MT-IGPs) such as MT-OSPF [7] and M-ISIS [8] as the underlying routing platform to enable path diversity, based on which adaptive traffic splitting across multiple routing topologies is performed for dynamic load balancing. AMPLE consists of two distinct phases to achieve our TE objectives.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Multi-topology IGP Based Traffic Engineering with Near-Optimal Network Performance

Wang

Pavlou

2008

NETWORKING 2008 Ad Hoc and Sensor Networks, Wireless Networks, Next Generation Internet

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Abstract. In this paper we present an intelligent multi-topology IGP (MT-IGP) based intra-domain traffic engineering (TE) scheme that is able to handle unexpected traffic fluctuations with near-optimal network performance. First of all, the network is dimensioned through offline link weight optimization using Multi-Topology IGPs for achieving maximum path diversity across multiple routing topologies. Based on this optimized MT-IGP configuration, an adaptive traffic engineering algorithm performs dynamic traffic splitting adjustment for balancing the load across multiple routing topologies in reaction to the monitored traffic dynamics. Such an approach is able to efficiently minimize the occurrence of network congestion without the necessity of frequently changing IGP link weights that may cause transient forwarding loops and routing instability. Our experiments based on real network topologies and traffic matrices show that our approach has a high chance of achieving nearoptimal network performance with only a small number of routing topologies.

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Multi-Topology (MT) Routing in OSPF

Cited by 117 publications

References 0 publications

OSPF Two-Part Metric

OSPF Two-Part Metric

IP Connectivity Provisioning Profile (CPP)

Adaptive Multi-topology IGP Based Traffic Engineering with Near-Optimal Network Performance

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