Tunneling - Describe basic layer 2 VPN – wireline - L2TPv3 general principles

6 important questions on Tunneling - Describe basic layer 2 VPN – wireline - L2TPv3 general principles

What is the abreviation for L2TPv3?

Layer 2 tunneling protocol version 3

What does L2TPv3 support?

Tunnel layer 2 frames, such as Ethernet/Frame-relay/PPP/HDLC over a packet switched network like IP/MPLS/Frame-relay/ATM

What is the abbrevation for LAC and LNS?

LAC: L2TP access concentrator
LNS: L2TP network server
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What are thL2TPv3 models?

LAC to LNS
LNS to LNS
LAC to LAC

What are the two different L2TPv3 message types and what are they used for?

-Session data: used to transport layer 2 frames
-Control messages: used to establish, maintain and teardown control channels and data sessions

What are the three different control connections variantions?

-manual
-manual with keepalive
-dynamic

CBT 33 - L2TPV3 3:40

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