Juniper IGP - CONFIGURATION GUIDE V11.1.X, Configuration Manual

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host1(config-router)# neighbor 10.12.11.5 priority 100
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Use the no version to remove the neighbor or restore the default values 0 and
120.
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See neighbor
Traffic Engineering
Traffic engineering enables more effective use of network resources by providing
for the setup of explicitly routed Multiprotocol Label Switching (MPLS) label-switched
paths (LSPs) that satisfy resource and administrative constraints. You can use OSPF
to exchange link resource and traffic-engineering administrative information between
routers. OSPF uses this information to calculate paths in the network that satisfy the
administrative constraints. MPLS can then set up LSPs along these paths. See
JUNOSe
BGP and MPLS Configuration Guide for a detailed discussion of MPLS.
Configuring OSPF for Traffic Engineering
For OSPF to support traffic engineering, you must issue both of the following
commands:
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mpls traffic-eng area —Enables the router to flood traffic engineering resource
and administrative information in the specified area using type 10 opaque LSAs.
These LSAs have an area-wide scope and therefore are flooded only within the
indicated area.
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mpls traffic-eng router-id —Designates a router as traffic engineering capable
and specifies the address of a stable router interface as the router ID of the node
for traffic engineering purposes. The traffic engineering router ID serves as the
tunnel endpoint for tunnels terminating at the node. Each node advertises its
traffic engineering router ID in type 10 LSAs.
By default, OSPF always uses the MPLS tunnel to reach the MPLS endpoint. Best
paths determined by SPF calculations are not considered. You can enable the
consideration of best paths by issuing the
mpls spf-use-any-best-path command.
As a result, OSPF considers metrics for IGP paths and the tunnel metric, and might
forward traffic along a best path, through the MPLS tunnel, or both.
You can use the show ip ospf database opaque-area command to display information
about traffic engineering opaque LSAs.
For OSPF routes to use established MPLS tunnels as next hops—so that traffic can
be mapped to use these tunnels—you must configure the tunnels with the
tunnel
mpls autoroute announce ospf command. See JUNOSe BGP and MPLS Configuration
Guide , for information about configuring MPLS on a router.
mpls spf-use-any-best-path
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Traffic Engineering
JUNOSe 11.0.x IP, IPv6, and IGP Configuration Guide