Chapter 1
Configuring MPLS on a Network
This chapter describes how to configure a network to run Multiprotocol Label
Switching (MPLS), including the components and supporting protocols. (See
Table 5.)
Table 5: Checklist for Verifying a Network Configured with MPLS
Verifying a Network Configured with MPLS Tasks
Command or Action
Configuring MPLS on Your Network on page 6
1. Configure IP Addresses on Router Interfaces on page 8
[edit]
edit interfaces type-fpc/pic/port unit logical-unit-number
set family inet address address
show
commit
2. Configure IS-IS as the IGP on page 9
a. Enable IS-IS on Routers in Your Network on page 10
[edit]
edit protocols isis
set level 1 disable
set interface type-fpc/pic/port level level-number metric metric
set interface fxp0.0 disable
set interface lo0.0
set interface lo0 passive
show
commit
b. Configure ISO Addressing on page 12
[edit]
edit interfaces
set lo0 unit number family iso address address
show
commit
c. Enable IS-IS on Router Interfaces on page 14
[edit]
edit interfaces
set type-fpc/pic/port unit number family iso
show
commit
d. Verify That IS-IS Adjacencies Are Established on page 15
show isis adjacency
3
JUNOS MPLS Network Operations Guide
4
3. Configure OSPF as the IGP on page 16
a. Enable OSPF on Routers in Your Network on page 17
[edit]
edit protocols ospf
[edit protocols ospf]
set area area-id interface type-fpc/pic/port
set interface fxp0.0 disable
set area 0.0.0.0 interface lo0
set area 0.0.0.0 interface lo0 passive
set traffic engineering
[edit routing-options]
set router-id router-id
show
commit
b. Verify That OSPF Neighbors Are Established on page 19
show ospf neighbor
4. Set Up BGP on Routers in Your Network on page 21
a. Define the Local Autonomous System on page 22
[edit]
edit routing-options
set autonomous-system as-number
show
commit
b. Configure BGP Neighbor Connections on page 23
[edit]
edit protocols bgp
set group group-name type type neighbor
neighbor-address
set group group-name local-address local-address
show
commit
c. Configure a Simple Routing