The Altiga L2TP Statistics MIB models counters and objects that are of management interest for L2TP tunnels. Acronyms The following acronyms are used in this document: AVP: Attribute/Value Pair CLID: Calling Line ID DNIS: Dialed Number Identification Service L2TP: Layer 2 Tunnel Protocol LAC: L2TP Access Concentrator LNS: L2TP Network Server MIB: Management Information Base RWS: Receive Window Size