Juniper JUNOS OS 10.3 - SOFTWARE, Manual

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Configuring MPLS on Provider Switches (CLI Procedure)
Junos MPLS for EX Series switches supports Layer 2 protocols and Layer 2 virtual private
networks (VPNs). You can configure MPLS on EX Series switches to increase transport
efficiency in your network. MPLS services can be used to connect various sites to a
backbone network and to ensure better performance for low-latency applications such
as VoIP and other business-critical functions.
NOTE: You can use class of service (CoS) on MPLS networks. For further
information, see “Understanding Using CoS with MPLS Networks on EX Series
Switches” on page 3167.
To implement MPLS on EX Series switches, you must configure at least one provider
switch as a transit switch for the MPLS packets. The configuration of all the provider
switches is the same regardless of whether the provider edge (PE) switches are using
circuit cross-connect (CCC) or using MPLS over IP for the customer-edge interfaces.
To configure the provider switch, complete the following tasks:
1.
Enable the routing protocol (OSPF or IS-IS) on the loopback interface and on the core
interfaces:
NOTE: You can use the switch address as an alternative to the loopback
interface.
[edit protocols]
user@switch#
set ospf area 0.0.0.0 interface lo0.0
user@switch# set ospf area 0.0.0.0 interface ge-0/0/5.0
user@switch# set ospf area 0.0.0.0 interface ge-0/0/6.0
user@switch#
set ospf area 0.0.0.0 interface ae0
2.
Enable traffic engineering for the routing protocol (OSPF or IS-IS):
[edit protocols]
user@switch#
set ospf traffic-engineering
3.
Enable MPLS within the protocols stanza and apply it to the core interfaces:
[edit protocols]
user@switch#
set mpls interface ge-0/0/5.0
user@switch#
set mpls interface ge-0/0/6.0
user@switch# set mpls interface ae0
4.
Configure RSVP on the loopback interface and the core interfaces:
[edit protocols]
user@switch#
set rsvp interface lo0.0
user@switch#
set rsvp interface ge-0/0/5.0
user@switch# set rsvp interface ge-0/0/6.0
user@switch# set rsvp interface ae0
Copyright © 2010, Juniper Networks, Inc. 3396
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3