Cpu Queues - Alcatel-Lucent 7210 SAS E OS Quality Of Service Manual

QoS Overview

CPU Queues

The packets that are destined to the CPU are prioritized based on the application. Some of the
applications that are prioritized are Layer 2 learn packets, EFM/CFM/STP/LACP packets, and
Layer 3 packets. The CPU provides eight queues from BE (0) to NC (7). The packets destined to
the CPU are classified internally and are put into the correct queue. These packets are rate-limited
to prevent DoS attacks. The software programs the classification entries to identify these packets
and assigns appropriate bandwdith and priority to them. It is not configurable by the user.
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