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RCA THOMSON SpeedTouchTM (Wireless) Business DSL Router 5.2.3 Forwarding parameters.

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Chapter 5

Packet Classification and Labelling

E-NIT-CTC-20041213-0013v0.5

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5.2.3 Forwarding parameters.

Introduction In this section we will explain the parameters that need to be set to enable packet

forwarding throughout the entire network. This means that these values are only of

significance for outgoing fraffic.

TTLoverwrite The following parameters can be configured for routing purposes.

TTL

The TTL value is normaly set to a high number to avoid that packets get dropped.

For IGMP packets the TTL is by default set to 1. If we want IGMP packets to get

routed to the next router the TTL value should be set to 2.

Modify the label

parameters

Execute the following CLI command to configure the label parameters:

Show all labels defined Exectute the following CLI command to show all defined labels:

This command will return you all labels defined.

TTLoverwrite values Description

disable Disables the overwriting of the IP header TTL field with

the configured TTL value.

enable Enables the overwriting of the IP header TTL field with

the configured TTL value

TTL values Description

1..255 The time to live in number of hops (routers) that the

packet will be forwarded.

{Administrator}=>: label modify name mylabel classification overwrite

defclass 14 ackclass 14 bidirectional disabled inheritance disabled

tosmarking disabled

{Administrator}=>:label list

Name Class Def Ack Bidirect Inherit Tosmark Type Value Ttlover Ttl Use Trace

DSCP overwrite dscp defclass disabled disabled disabled tos 0 disabled 0 0 disabled

Interactive increase 8 8 disabled disabled disabled tos 0 disabled 0 0 disabled

Management increase 12 12 disabled disabled disabled tos 0 disabled 0 0 disabled

Video increase 10 10 disabled disabled disabled tos 0 disabled 0 0 disabled

VoIP overwrite 14 14 enabled enabled disabled tos 0 disabled 0 0 disabled

default increase default prioritize disabled disabled disabled tos 0 disabled 0 0 disabled

Contents

Main Page Page Page Contents Contents 4 6 Meters, queues and IPQoS......................................... 59 7 Scenario 1: Residential user.......................................85 Page Page About this IPQoS Configuration Guide About this IPQoS Configuration Guide ! Page Chapter 1 1 Document scope Page 2Introduction 2.1 What is Quality of Service? Definition Misunderstandings ! Page 2.2 Relative versus Guaranteed QoS Types of QoS 3 Basic QoS Concepts 3.1 Precedence and TOS Introduction First generation Precedence values Second generation 3.2 Differentiated Services Differentiated Services domain 3.3 Classification and conditioning principles Introduction classifier Traffic classification Traffic conditioning Page 3.4 Differentiated Services Code Point (DSCP) Introduction Per Hop Behaviour Standardized PHBs Page Assured Forwarding (AF) PHB Group: 4 IP QoS Framework Overview 4.1 Main Framework Components Graphical overview QoS Components 4.2 Resource Management Mapping to internal class 5 Packet Classification and Labelling 5.1 Classification Introduction Terminology 5.1.1 Order of classification rules Introduction Routing classification Sub-chains ! Page 5.2 Labels Introduction CLI Command groups ! Label command group Adding a label Label parameters Debug command group 5.2.1 Label parameters explained Introduction Classification Defclass Page Page 5.2.2 Using TOS, DSCP or Precedence Introduction Precedence TOSmarking TOS DSCP 5.2.3 Forwarding parameters. Introduction TTLoverwrite TTL Modify the label parameters Page 5.3 Rules 5.3.1 Rules parameters explained Introduction Srcintf Chain Index Srcip Dstip Serv Page The flush command 5.3.2 Rule debug commands Introduction Traceconfig Traceconfig result Stats 5.4 Chains Page 5.4.1 Define a relation between chains 5.5 Expressions Page Bridgeport Addr Precedence Tos Dscp ! Srcportend Dstport Icmptype Dstportend Page Page 6 Meters, queues and IPQoS 6.1 Meters and queues 6.2 The IPQoS command group Overview IPQoS command group EF command group meter command group Page Page Page MTU explained. EF stats command EF list command Line Speed 6.4 Meter command group Introduction Adding a meter 6.4.1 Meter config command Meter parameters meter config Label Meter config parameters explained Name Intf Droprate Markrate Burst Page Dscp Precedence Class Classification Meter delete command Meter list command Meter start command Meter stop command Meter flush command Meter stats command 6.4.2 Packet flow Illustration Classification Metering 6.5 Queue command group Introduction Queue config command 6.5.1 Queue config parameters explained Dest Ecnmarking Queue Propagate Data ACK1Data DataACK2 Example Maxpackets Respackets Maxbytes Resbytes Hold Markprob Queue list command Queue stats command Queue clear command 6.6 IPQoS Command group Introduction ipqos config command 6.6.1 Ipqos config parameters explained Introduction Dest Discard State ! Priority Realtimerate Burstsize Weight Maxpackets Maxbytes Ipqos list command 7 Scenario 1: Residential user. 7.1 Configuring labels and rules for VoIP. Introduction The web interface Labels Rules Expressions Page 7.2 Configuring labels and rules for DSCP. Introduction Labels Rules Expressions 7.3 Configuring labels and rules for Interactive traffic. Introduction Labels Page Expressions Page Page 8 Scenario 2: Business user with TOS marking. ! 8.1 Labels Page Page Page 8.2 Rules. Page Page Page Page Page Page Page Page 8.3 IPQoS per PVC Page Page Chapter 9 9 Scenario 3: Metering Page Reference List Reference List Page Abreviation List Abreviation List