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What This Is About Terminology: L2TPv3 Control State: Control connection state (including its reliable delivery mechanisms) Association between a control connection and sessions L2TPv3 Forwarding State (per session): Association between the session and its local attachment circuit Source and Destination IP addresses (from the control connection) Session State (Idle, Established etc.) Session ID (local and remote) Cookies (local and remote) Sequence numbers (next number to send, next expected number to receive |