Mpls Application Example; Example Network Overview - Alcatel-Lucent OmniSwitch 6850-48 Network Configuration Manual

MPLS Application Example

MPLS Application Example
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).

Example Network Overview

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.
1/2
10.10.10.3
R3
1/8 1/14 5/2
Host1
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.
page 10-30
10.10.10.2
1/4
PROTECTED LINKS
vlan-20
1/1
192.168.20.0/24
10.1.1.3
1/2
1/12
Host2
Example MPLS Network
OmniSwitch AOS Release 6 Network Configuration Guide
1/3
R1
R4
1/5
1/10
Configuring MPLS
1/2
10.10.10.1
1/6
R2
1/3
Host3
September 2009