Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

Junos ®
OS 12.3 Ethernet Interfaces Configuration Guide
Forwarding Untagged
Layer2 Control Packets
348
to Queue 3
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queue 1 af-low8;
queue 2 af-high;
queue 3 ef;
queue 4 ops_control;
queue 5 net_control;
queue 6 af-low10_12;
}
restricted-queues {
forwarding-class ef queue-num 0;
forwarding-class af-low8 queue-num 1;
forwarding-class af-low10_12 queue-num 1;
forwarding-class af-high queue-num 2;
forwarding-class be queue-num 3;
}
With this configuration, the FC associated with queue 0 is "ef" (based on the
forwarding-class statement configuration). "ef" maps to restricted-queue number 0
(based on the restricted-queue statement configuration). Hence, with this particular
configuration, untagged ARP, IS-IS, and other untagged Layer 2 control packets would
go to ingress queue 0.
For tagged ARP, IS-IS, or Layer2 control packets, users should configure an explicit
dot1p/dot1ad classifier to make sure these packets are directed to the correct queue.
Without an explicit dot1p/dot1ad classifier, tagged ARP, IS-IS, or Layer 2 control packets
will go to the restricted-queue corresponding to the forwarding class associated with
queue 0.
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[edit chassis]
forwarding-classes {
queue 0 ef;