CHAPTER 3
MPLS Overview
This chapter describes Multiprotocol Label Switching (MPLS) and contains the following
sections:
•
MPLS Overview on page 210
•
Terminology for MPLS Topics on page 210
•
MPLS Terms and Acronyms on page 212
•
MPLS Features on page 214
•
MPLS Platform Considerations on page 215
•
MPLS References on page 216
•
MPLS Label Switching and Packet Forwarding Overview on page 218
•
TTL Processing in the Platform Label Space Overview on page 222
•
MPLS Label Distribution Methodology on page 227
•
IP Data Packet Mapping onto MPLS LSPs Overview on page 229
•
Statistics for IP Packets Moving On or Off MPLS LSPs on page 231
•
MPLS Forwarding and Next-Hop Tables Overview on page 233
•
MPLS Packet Spoof Checking Overview on page 234
•
IP and IPv6 Tunnel Routing Tables and MPLS Tunnels Overview on page 234
•
Explicit Routing for MPLS Overview on page 235
•
MPLS Interfaces and Interface Stacking Overview on page 236
•
MPLS Label Distribution Protocols Overview on page 238
•
ECMP Labels for MPLS Overview on page 242
•
MPLS Connectivity Verification and Troubleshooting Methods on page 244
•
Point-to-Multipoint LSPs Connectivity Verification at Egress Nodes Overview on page 246
•
Ping Extensions for Point-to-Multipoint LSPs Connectivity Verification at Egress
Nodes on page 246
•
TLVs and Sub-TLVs Supported for Point-to-Multipoint LSPs Connectivity Verification
at Egress Nodes on page 248
•
LDP Discovery Mechanisms on page 250
•
MPLS Traffic Engineering Overview on page 252
209Copyright © 2010, Juniper Networks, Inc.
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