system-defaults
Syntax
system-defaults {
classifiers exp {
classifier-name;
}
traffic-control-profiles {
interface-set-input profile-name;
interface-set-output profile-name;
}
}
Hierarchy Level
[edit class-of-service], [edit dynamic-profiles name class-of-service]
Description
Define system defaults for CoS parameters. You can define a global system default EXP classifier, a global default input traffic control profile (TCP), and/or a global default output TCP.
If you configure a global system default EXP classifier, then all interfaces use that EXP classifier to classify MPLS traffic.
On
devices
that have a default EXP classifier, if you do not configure a global system default
classifier, interfaces configured as family mpls use the default
EXP classifier.
On devices that do not have a default EXP classifier, if you do not configure a global system default EXP classifier, then if a fixed classifier is applied to the interface, the MPLS traffic uses the fixed classifier. If no EXP classifier and no fixed classifier are applied to the interface, MPLS traffic is treated as best-effort traffic using the IEEE 802.1 default untrusted classifier. DSCP classifiers are not applied to MPLS traffic. Because the EXP classifier is global, you cannot configure some ports to use a fixed IEEE 802.1p classifier for MPLS traffic on some interfaces and the global EXP classifier for MPLS traffic on other interfaces. When you configure a global EXP classifier, all MPLS traffic on all interfaces uses the EXP classifier.
Options
classifier-name—Name of the behavior aggregate
(BA) exp classifier or default for the default
exp classifier.
profile-name—For
interface-set-input, the default input
TCP
for dynamic interface-sets. For interface-set-output, the default
output TCP for dynamic interface-sets.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 12.2.
traffic-control-profiles option added in Junos OS Release
19.3R1.