Title	Evaluation of tunnel layer impact on VOIP performances (IP – MPLS – MPLS VPN – MPLS VPN IPsec)
Author	Faycal Bensalah, Najib El Kamoun, Ayoub BAHNASSE
Citation	Vol. 17  No. 3  pp. 87-92
Keywords	IP, VPN, MPLS VPN, IPsec MPLS, VOIP, GNS3, IP SLA, Scalability.

Title	Analytical performance and Evaluation of the Scalability of Layer 3 Tunneling Protocols: Case of Voice Traffic Over IP.
Author	Faycal Bensalah, Najib El Kamoun and Ayoub BAHNASSE
Citation	Vol. 17  No. 4  pp. 361-369
Keywords	VPN, IPsec, GRE, DMVPN, GNS3, Scalability, VOIP.

Title	Evaluation of the Scalability of the Protected Multipoint Dynamic VPN by IPsec in a WiMax Network
Author	Najib El Kamoun, Ayoub BAHNASSE, and Faycal BENSALAH
Citation	Vol. 17  No. 12  pp. 108-113
Keywords	DMVPN, VPN, IPsec, WiMax, VOIP