Abstract
In this paper multimedia streaming applications is performance is evaluated over MPLS network using two VPN techniques MPLS VPN and IPSec using OPNET simulation tool. However, to make the analysis study more realistic HTTP and FTP traffics are also injected into the tested scenarios and measured. VPN exploits encryption to provide data’s confidentiality transmitted through the VPN tunnels. MPLS VPN connects sites over public networks using private labeled switched paths (LSPs) established on MPLS networks. IPSec certifying sender authentication, keeping data’s confidentiality by encryption, and provides data integrity. The experimental results showed that IPSec is performed better than MPLS VPN in terms of end-to-end delay and packet delay variation. Moreover, OSPF protocol is employed as routing protocol also incurred more traffic in MPLS VPN than IPSec scenario. In addition, H.323 as a multimedia protocol is also recorded longer setup time in the case of MPLS VPN than IPSec scenario.