Sidebar 1: Acronyms and Abbreviations

ATM -- Asynchronous Transfer Mode
ATM-LSR -- Asynchronous Transfer Mode-Label Switch Router
CE router -- Customer-Edge router
CIR -- Committed Information Rate
CoS -- Class of Service
IGP -- Interior Gateway Protocol
IS-IS -- Intermediate System to Intermediate System
ISP -- Internet Service Provider
LDP -- Label Distribution Protocol
LER -- Label Edge Router
LSP -- Label Switched Path
LSR -- Label Switch Router
LVC -- Label Virtual Circuit
MPLS -- Multi-Protocol Label Switching
OSI -- Open System Interconnect
OSPF -- Open Shortest Path First
P router -- Provider Router
PE router -- Provider Edge Router
PVC -- Permanent Virtual Circuit
QoS -- Quality of Service
RD -- Route Distinguisher
RSVP -- Resource ReSerVation Protocol
TE -- Traffic Engineering
VPN -- Virtual Private Network