3Com 3C13636 Configuration Manual page 829

3Com Router 3000 Ethernet Family
Configuration Guide
Chapter 1 MPLS Architecture....................................................................................................... 1-1
1.1 MPLS Overview ................................................................................................................. 1-1
1.2 MPLS Basic Concepts ....................................................................................................... 1-1
1.2.1 FEC ......................................................................................................................... 1-1
1.2.2 Label........................................................................................................................ 1-1
1.2.3 LDP ......................................................................................................................... 1-3
1.3 MPLS Architecture ............................................................................................................. 1-4
1.3.1 MPLS Network Structure......................................................................................... 1-4
1.3.2 LSP Establishment.................................................................................................. 1-4
1.3.3 LSP Tunnel and Hierarchy ...................................................................................... 1-5
1.3.4 Forwarding Labeled Packets................................................................................... 1-5
1.4 LDP Overview .................................................................................................................... 1-6
1.4.1 LDP Basic Concepts ............................................................................................... 1-6
1.4.2 LDP Working Process ............................................................................................. 1-7
1.4.3 LDP Basic Operation............................................................................................... 1-8
1.4.4 LDP Loop Detection .............................................................................................. 1-10
1.4.5 Constrain-based Routing LDP .............................................................................. 1-10
1.5 MPLS and Other Protocols .............................................................................................. 1-11
1.5.1 MPLS and Routing Protocols ................................................................................ 1-11
1.5.2 MPLS Extension by RSVP .................................................................................... 1-11
1.6 MPLS Application............................................................................................................. 1-11
1.6.1 MPLS-Based VPN................................................................................................. 1-11
1.6.2 MPLS-Based QoS................................................................................................. 1-12
Chapter 2 MPLS Basic Capability Configuration ....................................................................... 2-1
2.1 Introduction to MPLS Basic Capability .............................................................................. 2-1
2.2 MPLS Basic Capability Configuration ................................................................................ 2-1
2.2.1 Defining MPLS LSR ID............................................................................................ 2-2
2.2.2 Entering MPLS View ............................................................................................... 2-2
2.2.3 Configuring the Topology-Driven LSP Setup Policy ............................................... 2-2
2.2.4 Configuring Static LSP ............................................................................................ 2-3
2.2.5 Configuring IP TTL Duplication of MPLS ................................................................ 2-3
2.2.6 Configuring MPLS to Return ICMP Responses by IP routing................................. 2-5
2.3 LDP Configuration.............................................................................................................. 2-5
2.3.1 Enabling/Disabling LDP .......................................................................................... 2-5
2.3.2 Enabling/Disabling LDP on Interface ...................................................................... 2-6
2.3.3 Configure LDP extended discovery mode .............................................................. 2-6
2.3.4 Configuring Session Parameters ............................................................................ 2-7
2.3.5 LDP Loop Detection Control ................................................................................... 2-8
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