Performance evaluation of Diffserv enabled NAT

Author

Guha, Dibyajyoti ; Pathak, S.S.

Author_Institution

G.S. Sanyal Sch. of Telecommun., Indian Inst. of Technol., Kharagpur, Kharagpur, India

fYear

2011

fDate

15-17 Sept. 2011

Firstpage

607

Lastpage

611

Abstract

In this paper we discuss evaluating performance of Network edge device like DiffServ enabled Network Address Translator or Session Border Controller for protecting cluster of VoIP servers. Incoming connections coming from outside to VoIP cluster is terminated at NAT for the purpose of enforcing security policies and connection mapping to identify the ongoing session and new session. We have taken a further step to equip the NAT with Quality of Service policy in order to make NAT as a application aware gateway or Session Border Controller. The performance is evaluated by considering the NAT buffer as a Vacational Queueing model. Mean queue length, and sojourn time analysis is made here.

Keywords

Internet telephony; computer network performance evaluation; computer network security; internetworking; quality of service; DiffServ enabled network address translator; Diffserv enabled NAT performance evaluation; NAT buffer; VoIP server cluster protection; connection mapping; mean queue length; network edge device; quality of service policy; security policies; session border controller; sojourn time analysis; vacational queueing model; Computers; IP networks; Internet; Logic gates; Quality of service; Servers; Virtual private networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Communication Technology (ICCCT), 2011 2nd International Conference on

Conference_Location

Allahabad

Print_ISBN

978-1-4577-1385-9

Type

conf

DOI

10.1109/ICCCT.2011.6075101

Filename

6075101