What is the tunneling in Layer 2 Tunneling Protocol L2TP?
Layer Two Tunneling Protocol (L2TP) is an extension of the Point-to-Point Tunneling Protocol (PPTP) used by internet service providers (ISPs) to enable virtual private networks (VPNs). To ensure security and privacy, L2TP must rely on an encryption protocol to pass within the tunnel.
What is LACP tunneling?
LACP tunneling is supported on Epipe and VPLS services. In a VPLS, the Layer 2 control frames are sent out of all the SAPs configured in the VPLS. The following SAPs can be configured for tunneling the untagged LACP frames (the corresponding protocol tunneling needs to be enabled on the port). …
How does a layer 2 tunnel work?
With an L2TP compulsory tunnel, a remote host initiates a connection to its ISP. The ISP then establishes an L2TP connection between the remote user and the corporate network. Although the ISP establishes the connection, you decide how to protect the traffic by using VPN.
Is IPsec a Layer 2 tunneling protocol?
IPsec is often used to secure L2TP packets by providing confidentiality, authentication and integrity. The combination of these two protocols is generally known as L2TP/IPsec (discussed below). The two endpoints of an L2TP tunnel are called the L2TP access concentrator (LAC) and the L2TP network server (LNS).
What is Layer 3 tunneling?
Layer 3 tunneling involves the addition of a new IP header to an IP packet before sending them across a tunnel created over an IP-based network. Note that the use of Layer 3 tunneling protocols is confined to IP-based networks. Provides support for various network protocols, such as IPX and NetBEUI.
What is EtherChannel networking?
EtherChannel is a port link aggregation technology or port-channel architecture used primarily on Cisco switches. It allows grouping of several physical Ethernet links to create one logical Ethernet link for the purpose of providing fault-tolerance and high-speed links between switches, routers and servers.