In the quest of providing a deterministic backplanelike behaviour a mechanism called ECCP (Ethernet Congestion Control & Prevention) was proposed where specialized and expensive devices were replaced by commodity Ethernet switches while still keeping the router properties, e.g. low-latency packet delivery, no packet loss within the fabric and fair share of the bandwidth.

However, ECCP uses a self-induced congestion probing model which can cause queue length fluctuation in addition to the network bandwidth wastage due to the probes. Therefore, we propose enhancements to the algorithm used by ECCP to reduce probe packet overhead. In our solution NoPECCP (ECCP with no probes), we use a link utilization estimation technique instead of the estimation of the available bandwidth. The results obtained through simulations show that NoP-ECCP outperforms ECCP in terms of fairness, link utilization and queue length.

Authors

Mahmoud Bahnasy; Ecole de Technologie Supérieure, Bochra Boughzala; Ericsson, Halima Elbiaze; Université du Québec à Montreal, Brian Alleynez, Andre Beliveauzx, Chakri Padala; Ericsson

Download paper

Presented at the 2016 International Conference on Computing, Networking and Communications (ICNC).

© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.