
117374-C Rev 00
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LAN Emulation States ............................................................................................1-36
Initial State .......................................................................................................1-37
LECS Connect State .......................................................................................1-37
Configure State ................................................................................................1-37
Join State .........................................................................................................1-37
Initial Registration State ...................................................................................1-38
BUS Connect State .........................................................................................1-38
Operational State .............................................................................................1-38
Multi-Protocol over ATM Concepts ...............................................................................1-39
MPOA Logical Components ...................................................................................1-39
MPOA Basic Elements ...........................................................................................1-40
Establishing a Network Cut-Through .....................................................................1-41
ATM Router Redundancy Concepts .............................................................................1-43
PVC Operations and Management Concepts ..............................................................1-44
OAM Loopback ......................................................................................................1-45
OAM Alarms ...........................................................................................................1-45
For More Information ....................................................................................................1-46
Where to Go Next .........................................................................................................1-47
Chapter 2
Understanding MPLS
MPLS General Information .............................................................................................2-2
MPLS System Overview .................................................................................................2-3
Label Distribution Entity ...........................................................................................2-4
MPLS Label Management ........................................................................................2-4
Forwarding ...............................................................................................................2-4
The MPLS Network ........................................................................................................2-5
Label Switching Router ............................................................................................2-6
Label Edge Router ...................................................................................................2-6
Supported Protocols .......................................................................................................2-7
For More Information ......................................................................................................2-7
Where to Go Next ...........................................................................................................2-8
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