Qos Configuration Guide; Qos Overview - Supermicro SSE-X3348S Configuration Manual

1 QoS Configuration Guide

This document describes the system features supported in Supermicro Layer 2 / Layer 3 switches. This
document describes the system features supported in Supermicro Layer 2 / Layer 3 switch products.
This document covers the system configurations for the below listed Supermicro switch products.
Top of Rack Switches
• SSE-G24-TG4
• SSE-G48-TG4
• SSE-X24S
• SSE-X3348S
• SSE-X3348T
The majority of this document applies to the above listed Supermicro switch products. In any particular
subsection however, the contents might vary across these product models. In those sections, the
differences are clearly identified with reference to a particular model(s). If any particular model is not
referenced, the reader can safely assume that the content is applicable to all the above listed models.
Throughout this document, the common term "switch" refers to any of the above listed
Supermicro switch models unless a particular model is noted.

1.1 QoS Overview

Typically, networks operate on a best-effort delivery basis providing all traffic equal priorityand an equal
chance of being delivered in a timely manner. However, during congestion, all traffic has anequal chance
of being dropped.The QoS featureallows one to select specific network traffic and prioritize it according
toits relative importancetoprovide preferential treatment. Implementing QoS makes network
performance morepredictable and bandwidth utilization more effective.
The QoS implementation in Supermicro switches is based on the Differentiated Services
(DiffServ)architecture. DiffServarchitecture specifies that each packetis classified upon entry into the
Blade Switches
• SBM-GEM-X2C
• SBM-GEM-X2C+
• SBM-GEM-X3S+
• SBM-XEM-X10SM
Supermicro L2/L3 Switches Configuration Guide 4