The Contrail vRouter supports both MPLSoUDP (Multiprotocol Label Switching over User Datagram Protocol) and VXLAN (Virtual Extensible LAN) as the overlay tunneling protocols. These protocols are used to encapsulate and transport network traffic between virtual machines and containers across the cloud infrastructure.
It uses multiple protocols to provide SDN to these orchestrators, as shown in Figure 1 where Extensible Messaging and Presence Protocol (XMPP) is an open XML technology for real-time communication, defined in RFC 6120.
OpenVPN is the most secure VPN protocol and the safest choice thanks to its near-unbreakable encryption, which keeps users' data private even when using public Wi-Fi. Because it's open source, users can check the source code for vulnerabilities and reassure themselves that there are no weaknesses in its security.
There are many types of VPN protocols that offer varying levels of security and other features. The most commonly used tunneling protocols in the VPN industry are PPTP, L2TP/IPSec, SSTP, and OpenVPN - and the world's best VPN services should offer most or all of them.
The Layer 2 Tunneling Protocol (L2TP) is a virtual private network (VPN) protocol that creates a connection between your device and a VPN server without encrypting your content. Due to its lack of encryption and authentication, L2TP is usually paired with Internet Protocol Security (IPsec) protocol.
In computer networking, Layer 2 Tunneling Protocol (L2TP) is a tunneling protocol used to support virtual private networks (VPNs) or as part of the delivery of services by ISPs.
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