Alcatel-Lucent 6850-48 ネットワークガイド

MPLS Application Example

Configuring MPLS

page 10-30

OmniSwitch AOS Release 6 Network Configuration Guide

This section provides an example network configuration in which the Label Distribution Protocol (LDP) is 
used to set up both static and signaled Label Switched Paths (LSPs). In addition, a tutorial is also included 
that provides steps on how to configure the example network topology using the Command Line Interface 
(CLI).

The following network diagram represents an MPLS network consisting of four routers. Static LSPs are 
configured between routers R1, R2, R3, and R4 using interfaces “vlan-1”, “vlan-20”, “vlan-30” and “vlan-
50”. An additional link between routers R3 and R4 on the “vlan-40” interface has OSPF and LDP signal-
ing enabled. 

Static LSPs require the manual configuration of static routes and VC labels on each router interface in the 
static path. LDP signaling, however, uses the underlying routing protocol to set up LSPs and dynamically 
discover routes and labels. 

vla

n-

30

vlan-20

vla

n-4

0

vla

n-

50

vla

n-1

192.168.20.0/24

19

2.1

68

.30

.0/

24

192

.16

8.1

0.0

/24

19

2.

16

8.

50

.0

/2

4

1/4

1/3

1/2

1/1

1/2

1/6

1/5

1/2

1/10

1/12

1/8

1/14

5/2

40.4

0.4

0.0

/24

1/3