To Next Page

To Previous Page

To allow a Layer 3 VPN to transport IBGP traffic, include the independent-domain

statement:

independent-domain;

You can include this statement at the following hierarchy levels:

•

[edit routing-instances routing-instance-name routing-options autonomous-system

number]

•

[edit logical-systems logical-system-name routing-instances routing-instance-name

routing-options autonomous-system number]

NOTE: All PE routers participating in a Layer 3 VPN with the

independent-domain statement in its configuration must be running Junos

OS Release 6.3 or later.

NOTE: The [edit logical-systems] hierarchy level is not applicable in ACX

Series routers.

The independent domain uses the transitive path attribute 128 (attribute set) to tunnel

the independent domain’s BGP attributes through the Internal BGP (IBGP) core. In Junos

OS Release 10.3 and later, if BGP receives attribute 128 and you have not configured an

independent domain in any routing instance, BGP treats the received attribute 128 as an

unknown attribute.

There is a limit of 16 ASs for each domain.

Documentation

Example: Tunneling Layer 3 VPN IPv6 Islands over an IPv4 Core Using IBGP and

Independent Domains

•

• Disabling Attribute Set Messages on Independent AS Domains for BGP Loop Detection

Configuring a Label Allocation and Substitution Policy for VPNs

You can control label-advertisements on MPLS ingress and AS border routers (ASBRs).

Labels can be assigned on a per–next-hop (by default) or on a per-table basis (by

configuring the vrf-table-label statement). This choice affects all routes of a given routing

instance. You can also configure a policy to generate labels on a per-route basis by

specifying a label allocation policy.

To specify a label allocation policy for the routing instance, configure the label statement

and specify a label allocation policy using the allocation option:

label {

allocation label-allocation-policy;

}

ACX Series Universal Access Router Configuration Guide

Juniper ACX2000 Configuration Guide

Other manuals for Juniper ACX2000