Call For Paper Volume:4 Issue:8 Aug'2017 |

A Survey on Reducing Routing Distraction in IP Networks using Cross-Layer Methodology

Publication Date : 15/06/2015



Author(s) :

Mr. Sagar M. Bhakre , Asst. Prof. C. Sarathkumar.


Volume/Issue :
Volume 2
,
Issue 6
(06 - 2015)



Abstract :

Backup paths are widely used in IP networks to protect IP links from failures. However, existing solutions such as the commonly used independent model and Shared Risk Link Group (SRLG) model do not accurately reflect the correlation between IP link failures, and thus may not choose reliable backup paths. A cross-layer approach is proposed for minimizing routing disruption caused by IP link failures. A probabilistically correlated failure (PCF) model is developed to quantify the impact of IP link failure on the reliability of backup paths. With the PCF model, an algorithm is proposed to choose multiple reliable backup paths to protect each IP link. When an IP link fails, its traffic is split onto multiple backup paths to ensure that the rerouted traffic load on each IP link does not exceed the usable bandwidth. This approach using real ISP networks with both optical and IP layer topologies. Experimental results show that two backup paths are adequate for protecting a logical link. Compared with existing works, the backup paths selected by approach are at least 18 percent more reliable and the routing disruption is reduced by at least 22 percent.


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A Survey on Reducing Routing Distraction in IP Networks using Cross-Layer Methodology

June 13, 2015