Juniper JUNOS 10.1 - CONFIGURATION GUIDE 1-2010 Configuration Manual page 297

}
Map the VRF instance type to the virtual loopback tunnel interface.
For SCU and DCU to work, you must not include the
[edit routing-instances instance-name]
[edit routing-instances]
VPN-A {
instance-type vrf;
interface at-2/1/1.0;
interface vt-0/3/0.0;
route-distinguisher 10.255.14.225:100;
vrf-import import-policy-A;
vrf-export export-policy-A;
protocols {
bgp {
group to-r4 {
local-address 10.27.253.1;
peer-as 400;
neighbor 10.27.253.2;
}
}
}
}
Send traffic received from the VPN out the source class output interface:
[edit interfaces]
at-2/1/0 {
unit 0 {
family inet {
accounting {
source-class-usage {
output;
}
}
}
}
}
For more information about VPNs, see the JUNOS VPNs Configuration Guide. For more
information about virtual loopback tunnel interfaces, see the JUNOS Services Interfaces
Configuration Guide.
Chapter 5: Configuring Protocol Family and Interface Address Properties
hierarchy level.
Enabling Source Class and Destination Class Usage
statement at the
vrf-table-label
227