SMC Networks SMC8126L2 User Manual

Class of Service Configuration
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3
CLI – The following example shows how to change the CoS assignments.
Enabling CoS
Enable or disable Class of Service (CoS). Command Attributes
• Traffic Classes – Click to enable Class of Service. (Default: Enabled)
Web – Click Priority, Traffic Classes Status.
Figure 3-86 Enable Traffic Classes
Selecting the Queue Mode
You can set the switch to service the queues based on a strict rule that requires all
traffic in a higher priority queue to be processed before lower priority queues are
serviced, or use Weighted Round-Robin (WRR) queuing that specifies a relative
weight of each queue. WRR uses a predefined relative weight for each queue that
determines the percentage of service time the switch services each queue before
moving on to the next queue. This prevents the head-of-line blocking that can occur
with strict priority queuing.
Command Attributes
• WRR - Weighted Round-Robin shares bandwidth at the egress ports by using
scheduling weights 1, 2, 4, 8, for queues 0 through 3 respectively. (This is the
default selection.)
• Strict - Services the egress queues in sequential order, transmitting all traffic in the
higher priority queues before servicing lower priority queues.
Console(config)#interface ethernet 1/1 4-116
Console(config-if)#queue cos-map 0 0 4-187
Console(config-if)#queue cos-map 1 1
Console(config-if)#queue cos-map 2 2
Console(config-if)#end
Console#show queue cos-map ethernet 1/1 4-189
Information of Eth 1/1
CoS Value: 0 1 2 3 4 5 6 7
Priority Queue: 0 1 2 1 2 2 3 3
Console#

SMC Networks SMC8126L2 Specifications

General

Switching Capacity	52 Gbps
Forwarding Rate	38.7 Mpps
MAC Address Table	8K
Form Factor	Rack-mountable
Layer	L2
Jumbo Frame Support	9KB
Features	VLAN, QoS, Port Mirroring, SNMP
Power Supply	Internal
Dimensions	440 x 44 mm

Summary

Chapter 1: Introduction

Key Features

Overview of the switch's core functionalities and capabilities.

Description of Software Features

Detailed explanation of the advanced performance-enhancing features of the switch.

Chapter 2: Initial Configuration

Connecting to the Switch

Steps and options for establishing initial management access to the switch.

Setting an IP Address

Procedures for manually configuring or dynamically obtaining an IP address for network management.

Basic Configuration

Essential initial configuration steps, including console connection and password setup.

Chapter 3: Configuring the Switch

Using the Web Interface

Guide to accessing and navigating the switch's web-based management interface.

Main Menu

Overview of the primary options available in the web interface's main menu.

Port Configuration

Detailed steps for configuring individual switch ports, including speed, duplex, and status.

Chapter 4: Command Line Interface

Using the Command Line Interface

Introduction to managing the switch using the Command Line Interface (CLI).

Console Connection

Steps for establishing a direct connection to the switch via the console port.

Entering Commands

Guidelines on constructing and entering commands in the CLI.

System Management Commands

Commands for managing system-level settings like logs, passwords, and user access.

User Access Commands

Configuration of user accounts, access levels, and passwords for management access.