Reliable services in MPLS

Chen, Tom; Oh, Taegeun

doi:10.1109/35.809386

Cited by 59 publications

(21 citation statements)

References 8 publications

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“…An alternative approach, mentioned earlier, is link rerouting where one pushes a label on the stack representing a detour around the failed link [23]. This approach fits perfectly with ours in that it only requires one label per link.…”

Section: Error-scenariossupporting

confidence: 52%

“…This feature can be used in connection with link failures where one pushes a label on the stack representing a detour around the failed link [23].…”

Section: ) Atm Stylementioning

confidence: 99%

“…The fact that we need neither swapping nor the stack to get load optimal routing solutions with T + M labels suggests the relevance of limited implementations of MPLS, say, with a restricted stack-depth of two like in ATM, leaving space for stacking a detour around failed links as described in [23].…”

Section: Limited Hard-warementioning

confidence: 99%

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Load optimal MPLS routing with N + M labels

Applegate

Thorup

IEEE INFOCOM 2003. Twenty-Second Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE Cat. No.03CH37

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We present an algorithm reducing the number of MPLS labels to N + M without increasing any link load. Our explicit N + M bound makes it easy to limit the table size requirement for a planed network, and the linearity allows for tables implemented in fast memory. For differentiated services with K traffic classes with different load constraints, our bound increases to K(N + M). Our stack-depth is only one, justifying implementations of MPLS with limited stack-depth.

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Section: Error-scenariossupporting

confidence: 52%

“…This feature can be used in connection with link failures where one pushes a label on the stack representing a detour around the failed link [23].…”

Section: ) Atm Stylementioning

confidence: 99%

See 1 more Smart Citation

Load optimal MPLS routing with N + M labels

Applegate

Thorup

IEEE INFOCOM 2003. Twenty-Second Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE Cat. No.03CH37

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“…Since MPLS controls the router and hence the release of flows into the network, a fast forwarding of the failure information (tens of ms) to the MPLS control is essential to start re-routing of LSPs [8].…”

Section: • Failure Detection and Restorationmentioning

confidence: 99%

Distributed Router Architecture for Packet-Routed Optical Networks

Duser

Kozlovski

Killey

et al. 2001

IFIP Advances in Information and Communication Technology

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Abstract:A new proposal for an optical packet-routed network based on a distributed router architecture in a WDM network is described. Buffering, scheduling and wavelength assignment functions are carried out in routers located at the edge of the network. The destination address is encoded by a given wavelength and allows wavelength-routing in optical core routers. This approach avoids processing and additional buffering delays in core routers. A low packet loss rate and a low latency are critical parameters to guarantee QoS for a particular class of packets and must be carefully considered when IP traffic is directly transmitted over a photonic network. This network architecture requires new hardware elements and these are discussed including a low-crosstalk, large port-count free-space grating router. INTRODUCTIONWith the projected annual increase of 60% in data traffic [1], solutions are required to combine the advantages of the network packet layer with the high-bandwidth optical transmission in the physical layer. To date the proposed solutions concentrate on current protocols and transmission standards namely ATM and SOH, such as in proposals of IP-over-ATM [2] and packet-over-SOH transmission [3]. Whilst these simplify the protocol stack, limitations in scaling to a large number of routers remain. The advantage of connection-oriented protocols such as ATM is their provision

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“…QoS assurances are important for guaranteed services with hard bound requirements on packet loss, packet delay, and delay variation (jitter) [3]. Guaranteed services also need assurances about reliability in terms of continuity of services maintained by fast rerouting around network failures [4]. As a connection-oriented technique, MPLS is potentially more vulnerable to faults than IP.…”

Section: Introductionmentioning

confidence: 99%

Fault restoration and spare capacity allocation with QoS constraints for MPLS networks

Oh¹,

Chen²,

Kennington³

Globecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137)

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Abstract-This paper investigates distributed fault restoration techniques for multiprotocol label switching (MPLS) to automatically reroute label switched paths in the event of link or router failures while maintaining quality of service (QoS) requirements. Protocols for path and partial path restoration are evaluated. A backup route selection algorithm based on optimization of equivalent bandwidth is formulated and demonstrated for an example network.

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Reliable services in MPLS

Cited by 59 publications

References 8 publications

Load optimal MPLS routing with N + M labels

Load optimal MPLS routing with N + M labels

Distributed Router Architecture for Packet-Routed Optical Networks

Fault restoration and spare capacity allocation with QoS constraints for MPLS networks

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