... Tempo, 1998). In a recent work, (Özbay, Kalyanaraman, & Image ftar, 1998), an based flow ... more ... Tempo, 1998). In a recent work, (Özbay, Kalyanaraman, & Image ftar, 1998), an based flow controller was designed for an explicit rate feedback based congestion control in high speed networks. Internally robust ...
... Tempo, 1998). In a recent work, (Özbay, Kalyanaraman, & Image ftar, 1998), an based flow ... more ... Tempo, 1998). In a recent work, (Özbay, Kalyanaraman, & Image ftar, 1998), an based flow controller was designed for an explicit rate feedback based congestion control in high speed networks. Internally robust ...
ATM-UBR service responds to congestion by dropping cells when switch buffers become full. TCP con... more ATM-UBR service responds to congestion by dropping cells when switch buffers become full. TCP connections running over UBR experience low throughput and high unfairness. For 100% TCP throughput, each switch needs buffers equal to the sum of the window sizes of all the TCP connections. Intelligent drop policies can improve the performance of TCP over UBR with limited buffers. The UBR+ service proposes enhancements to UBR for intelligent drop. The early packet discard scheme improves throughput but does not attempt to improve fairness. The selective packet drop scheme based on per-connection buffer occupancy improves fairness. The fair buffer allocation scheme further improves both throughput and fairness
Page 1. Raj Jain The Ohio State University 1 95-1660R1 A Fix for Source End System Rule 5 Contact... more Page 1. Raj Jain The Ohio State University 1 95-1660R1 A Fix for Source End System Rule 5 Contact: [email protected]http://www.cis.ohio-state.edu/~Jain/ Raj Jain, Shiv Kalyanaraman, Rohit Goyal, Sonia Fahmy, Fang Lu The Ohio State University Saragur M. Srinidhi Sterling Software and NASA Lewis Research Center Raj Jain The Ohio State University 2 ❑ Do we really need rule 5? ❑ Key Design Issues ❑ Multiplicative vs additive ❑ Rule 5b ❑ Our proposal ...
The Available Bit Rate (ABR) service has been developed to support data applicationsover Asynchro... more The Available Bit Rate (ABR) service has been developed to support data applicationsover Asynchronous Transfer Mode (ATM) networks. The network continuously monitors itstraffic and provides feedback to the source end systems. This paper explains the rules thatthe sources have to follow to achieve a fair and efficient allocation of network resources.1 IntroductionThe traffic management specification TM4.0 developed by the ATM
❑ Allows any desired allocation: Vfrac= Fraction reserved for VBR Afrac= Fraction reserved for AB... more ❑ Allows any desired allocation: Vfrac= Fraction reserved for VBR Afrac= Fraction reserved for ABR❑ Guarantees non-starvation. All classes can have a guaranteed minimum.❑ No capacity is wasted. Capacity not used by one is used by the other class❑ Scheduling decision is made per cell or per group of cells❑ Keep scores for both (or n) classes❑ The class with higher score is serviced next❑ Complete pseudo-code in the contribution
The available bit rate (ABR) service has been developed to support data applications over asynchr... more The available bit rate (ABR) service has been developed to support data applications over asynchronous transfer mode (ATM) networks. The network continuously monitors its traffic and provides feedback to the source end systems. This article explains the rules that the sources have to follow to achieve a fair and efficient allocation of network resources
ABR traffic management for point-to-multipoint connections controls the source rate to be the min... more ABR traffic management for point-to-multipoint connections controls the source rate to be the minimum rate supported by all the branches of the multicast tree. A number of algorithms have been developed for extending ABR congestion avoidance algorithms to perform feedback consolidation at the branch points. This paper discusses various design options and implementation alternatives for the consolidation algorithms, and proposes a number of new algorithms. The performance of the proposed algorithms and the previous algorithms is compared under a variety of conditions. Results indicate that the algorithms we propose eliminate the consolidation noise (caused if the feedback is returned before all branches respond), while exhibiting a fast transient response
The Available Bit Rate (ABR) service has been developed to support data applications over Asynchr... more The Available Bit Rate (ABR) service has been developed to support data applications over Asynchronous Transfer Mode (ATM) networks. The network continuously monitors its traffic and provides feedback to the source end systems. This paper explains the rules that the sources have to follow to achieve a fair and efficient allocation of network resources.
The ABR service is designed to fairly allocate the bandwidth unused by higher priority services. ... more The ABR service is designed to fairly allocate the bandwidth unused by higher priority services. The network indicates to the ABR sources the rates at which they should transmit to minimize their cell loss. Switches must constantly measure the demand and available capacity, and divide the capacity fairly among the contending connections. In order to compute the fair and efficient allocation for each connection, a switch needs to determine the effective number of active connections. In this paper, we propose a method for determining the number of active connections and the fair bandwidth share for each. We prove the efficiency and fairness of the proposed method analytically, and simulate it by incorporating it into the ERICA switch algorithm.
... Tempo, 1998). In a recent work, (Özbay, Kalyanaraman, & Image ftar, 1998), an based flow ... more ... Tempo, 1998). In a recent work, (Özbay, Kalyanaraman, & Image ftar, 1998), an based flow controller was designed for an explicit rate feedback based congestion control in high speed networks. Internally robust ...
... Tempo, 1998). In a recent work, (Özbay, Kalyanaraman, & Image ftar, 1998), an based flow ... more ... Tempo, 1998). In a recent work, (Özbay, Kalyanaraman, & Image ftar, 1998), an based flow controller was designed for an explicit rate feedback based congestion control in high speed networks. Internally robust ...
ATM-UBR service responds to congestion by dropping cells when switch buffers become full. TCP con... more ATM-UBR service responds to congestion by dropping cells when switch buffers become full. TCP connections running over UBR experience low throughput and high unfairness. For 100% TCP throughput, each switch needs buffers equal to the sum of the window sizes of all the TCP connections. Intelligent drop policies can improve the performance of TCP over UBR with limited buffers. The UBR+ service proposes enhancements to UBR for intelligent drop. The early packet discard scheme improves throughput but does not attempt to improve fairness. The selective packet drop scheme based on per-connection buffer occupancy improves fairness. The fair buffer allocation scheme further improves both throughput and fairness
Page 1. Raj Jain The Ohio State University 1 95-1660R1 A Fix for Source End System Rule 5 Contact... more Page 1. Raj Jain The Ohio State University 1 95-1660R1 A Fix for Source End System Rule 5 Contact: [email protected]http://www.cis.ohio-state.edu/~Jain/ Raj Jain, Shiv Kalyanaraman, Rohit Goyal, Sonia Fahmy, Fang Lu The Ohio State University Saragur M. Srinidhi Sterling Software and NASA Lewis Research Center Raj Jain The Ohio State University 2 ❑ Do we really need rule 5? ❑ Key Design Issues ❑ Multiplicative vs additive ❑ Rule 5b ❑ Our proposal ...
The Available Bit Rate (ABR) service has been developed to support data applicationsover Asynchro... more The Available Bit Rate (ABR) service has been developed to support data applicationsover Asynchronous Transfer Mode (ATM) networks. The network continuously monitors itstraffic and provides feedback to the source end systems. This paper explains the rules thatthe sources have to follow to achieve a fair and efficient allocation of network resources.1 IntroductionThe traffic management specification TM4.0 developed by the ATM
❑ Allows any desired allocation: Vfrac= Fraction reserved for VBR Afrac= Fraction reserved for AB... more ❑ Allows any desired allocation: Vfrac= Fraction reserved for VBR Afrac= Fraction reserved for ABR❑ Guarantees non-starvation. All classes can have a guaranteed minimum.❑ No capacity is wasted. Capacity not used by one is used by the other class❑ Scheduling decision is made per cell or per group of cells❑ Keep scores for both (or n) classes❑ The class with higher score is serviced next❑ Complete pseudo-code in the contribution
The available bit rate (ABR) service has been developed to support data applications over asynchr... more The available bit rate (ABR) service has been developed to support data applications over asynchronous transfer mode (ATM) networks. The network continuously monitors its traffic and provides feedback to the source end systems. This article explains the rules that the sources have to follow to achieve a fair and efficient allocation of network resources
ABR traffic management for point-to-multipoint connections controls the source rate to be the min... more ABR traffic management for point-to-multipoint connections controls the source rate to be the minimum rate supported by all the branches of the multicast tree. A number of algorithms have been developed for extending ABR congestion avoidance algorithms to perform feedback consolidation at the branch points. This paper discusses various design options and implementation alternatives for the consolidation algorithms, and proposes a number of new algorithms. The performance of the proposed algorithms and the previous algorithms is compared under a variety of conditions. Results indicate that the algorithms we propose eliminate the consolidation noise (caused if the feedback is returned before all branches respond), while exhibiting a fast transient response
The Available Bit Rate (ABR) service has been developed to support data applications over Asynchr... more The Available Bit Rate (ABR) service has been developed to support data applications over Asynchronous Transfer Mode (ATM) networks. The network continuously monitors its traffic and provides feedback to the source end systems. This paper explains the rules that the sources have to follow to achieve a fair and efficient allocation of network resources.
The ABR service is designed to fairly allocate the bandwidth unused by higher priority services. ... more The ABR service is designed to fairly allocate the bandwidth unused by higher priority services. The network indicates to the ABR sources the rates at which they should transmit to minimize their cell loss. Switches must constantly measure the demand and available capacity, and divide the capacity fairly among the contending connections. In order to compute the fair and efficient allocation for each connection, a switch needs to determine the effective number of active connections. In this paper, we propose a method for determining the number of active connections and the fair bandwidth share for each. We prove the efficiency and fairness of the proposed method analytically, and simulate it by incorporating it into the ERICA switch algorithm.
Uploads
Papers