TY - JOUR
T1 - An overview of virtual private network (VPN)
T2 - IP VPN and optical VPN
AU - Zhang, Zhensheng
AU - Zhang, Ya Qin
AU - Chu, Xiaowen
AU - Li, Bo
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2004/5
Y1 - 2004/5
N2 - Recently, there has been rapid development and deployment of virtual private network (VPN) services. There are wide varieties of IP-based VPNs and optical VPNs (OVPNs) proposed in the literature and readers could easily get confused with so many different types of VPNs. The purpose of this paper is to present a comprehensive overview of the VPN and discuss the main issues associated with the design of IP VPN and OVPN. We first present a classification of the VPNs including CE-based, network based, customers provisioned, provider provisioned, connection oriented, connectionless oriented, port based, connection based, layer 1 VPN, layer 2 VPN, and layer 3 VPN, and describe different VPN protocols such as IPSec, ORE and MPLS. We then review the recent work on OVPN by different standard bodies, and outline the key requirements for OVPN service providers and customers. Finally, we describe several OVPN architectures appeared in the literature, highlight the future work in OVPN.
AB - Recently, there has been rapid development and deployment of virtual private network (VPN) services. There are wide varieties of IP-based VPNs and optical VPNs (OVPNs) proposed in the literature and readers could easily get confused with so many different types of VPNs. The purpose of this paper is to present a comprehensive overview of the VPN and discuss the main issues associated with the design of IP VPN and OVPN. We first present a classification of the VPNs including CE-based, network based, customers provisioned, provider provisioned, connection oriented, connectionless oriented, port based, connection based, layer 1 VPN, layer 2 VPN, and layer 3 VPN, and describe different VPN protocols such as IPSec, ORE and MPLS. We then review the recent work on OVPN by different standard bodies, and outline the key requirements for OVPN service providers and customers. Finally, we describe several OVPN architectures appeared in the literature, highlight the future work in OVPN.
KW - Internet
KW - Optical networks
KW - Virtual Private Networks (VPN)
UR - http://www.scopus.com/inward/record.url?scp=3543085076&partnerID=8YFLogxK
U2 - 10.1023/B:PNET.0000026887.35638.ce
DO - 10.1023/B:PNET.0000026887.35638.ce
M3 - Review article
AN - SCOPUS:3543085076
SN - 1387-974X
VL - 7
SP - 213
EP - 225
JO - Photonic Network Communications
JF - Photonic Network Communications
IS - 3
ER -