Manuale d’uso / di manutenzione del prodotto THOMSON SpeedTouchTM (Wireless) Business DSL Router del fabbricante RCA
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SpeedT ouch™608WL and SpeedT ouch™620 only SpeedT ouch™ (Wireless) Business DSL Router IPQoS Configuration Guide Release R5.3.0.
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SpeedT ouch™ IPQoS Configuration Guide R5.3.0.
Copyright Copyright ©199 9-2005 THOM SON. All righ ts reserved. Passing on, and cop ying of this docume nt, use and commun ication of its conte nts is not permitte d without written autho rization from THOMSON.
Contents E-NIT-CTC-20041213-0013 v0.5 3 Contents About this IPQoS Configur ation Guide ...................... 7 1 Document scope ......... .................................................. 9 2 Introduction ................. ..........................
Contents E-NIT-CTC-20041213- 0013 v0.5 4 5.1 Class ification ... .......... ......... .......... ......... .......... ......... ........ ........... 30 5.1.1 Order of cl assification rules............................. ............................. ...
Contents E-NIT-CTC-20041213-0013 v0.5 5 7.1 Configuring la bels and ru les for VoI P. ... .......... ........... ............. .... 86 7.2 Configuring la bels and ru les for DSC P. ........... ........... .......... ....... 90 7.3 Configuring labels and rules for In teractive traffic.
Contents.
About this IPQoS Configuration Guide E-NIT-CTC-20041213-0013 v0.5 7 About this IPQoS Configuration Guide In this configuration guide This routing configuration guide explains how routes can/must be used in SpeedTouch™ R5.
About this IPQoS Configuration Guide E-NIT-CTC-20041213- 0013 v0.5 8.
Chapter 1 Document scope E-NIT-CTC-20041213-0013 v0.5 9 1 Document scope Introduction The SpeedTouch™ Release 5.3. 0 has a strong Qu ality of Service (QoS) base that allows classification and forw arding of data to a single or mul tiple ATM VPI/VCIs with each a set of ATMQoS parameters.
Chapter 1 Document scope.
Chapter 2 Introduction E-NIT-CTC-20041213-0013 v0.5 11 2I n t r o d u c t i o n Introduction This chapter giv e s a general description and use of Quality of Service.
Chapter 2 Introductio n E-NIT-CTC-20041213- 0013 v0.5 12 2.1 What is Quality of Ser vice? Definition Quality of Service is the ability for an ap plication to obtain the network service it requires for successful operation. Nowadays the total amount of data tra ffic increases, while new types of data emerge, like: voice data, video data, audio data.
Chapter 2 Introduction E-NIT-CTC-20041213-0013 v0.5 13 Bandwidth versus QoS Quality of Service is really best noticed when the Best Effort service encounters congestion.
Chapter 2 Introductio n E-NIT-CTC-20041213- 0013 v0.5 14 2.2 Relative versus Guaranteed QoS Ty p e s o f Q o S There are two different ap proaches to achieve QoS: Guaranteed QoS : Measurable connection parameters are specified for certain data or for a connection, for example a guaranteed am ount of bandwid th or delay across the network.
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213-0013 v0.5 15 3 Basic QoS Concepts Introduction This chapter pr ovides a brief explanation about: Basic concepts of Quality of Service in general. Precedence and TOS in general The Differentiated Services architecture in detail In this chapter To p i c P a g e 3.
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213- 0013 v0.5 16 3.1 Precedence and TOS Introduction There are two generations of quality of serv ice architectures in the Internet Protocol. The interpretation of the Ty p e o f S e r v i c e O c t e t in the Internet Protoc ol header v aries between these two ge nerations.
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213-0013 v0.5 17 Precedence values The table below gives the precedence values: Second generation The Differentiated Ser vice Code Point is a selector for router's per-hop b ehaviours. The fields ECT and CE are spare bits in the IP header used by Explicit Congestion Notification ( RFC3168 ).
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213- 0013 v0.5 18 3.2 Differentiated Ser vices Introduction Differentiated Services (DiffServ) is an ar chitecture which allows service providers to offer different kinds of services to diffe rent customers and their traffic streams.
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213-0013 v0.5 19 Differentiated Ser vices domain A DiffServ domain consists of a set of DiffServ nodes which can provide the common service and which have a set of PHBs implemented on each no de.
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213- 0013 v0.5 20 3.3 Classification and conditioning principles Introduction Packets go through a number of phases as th ey transit the network: classification, marking, shaping, pol icing and queuing. These phas es can occur a number of times at each QoS-aware router in the path of the packet.
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213-0013 v0.5 21 Marking Once classified, a packet is marked to avoid repeated re-classifications. The marking is made to the Differentiate d Services Cod e Point (DSCP). The DSCP is trusted by later routers, so that the high cost of classifying traffic occurs only once.
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213- 0013 v0.5 22 3.4 Differentiated Ser vices Code Point (DSCP) Introduction A small bit-pattern, called the DS fi eld, in each IP packet is used to mark the packets that should receive a particular forwarding treatment.
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213-0013 v0.5 23.
Chapter 3 Basic QoS Concepts E-NIT-CTC-20041213- 0013 v0.5 24 Assured Forwarding (AF) PHB Group: The Assured Forwarding (A F) PHB group allows a provider to offer different levels of forwarding assurances for IP packets. The delivery of IP packets is provided in four independently forwarded AF class es (AF1x th rough AF4x).
Chapter 4 IP QoS Framework Overview E-NIT-CTC-20041213-0013 v0.5 25 4 IP QoS Framework Over view Introduction This chapter presents an overview of the main components of the IP QoS framework within the SpeedTouch™. In this chapter To p i c P a g e 4.
Chapter 4 IP QoS Framework Overview E-NIT-CTC-20041213- 0013 v0.5 26 4.1 Main Framework Components Graphical over view The figure below shows a graphical overvi ew of the main components in the upstream datapath.Notice that there are two main blocks, the input and output.
Chapter 4 IP QoS Framework Overview E-NIT-CTC-20041213-0013 v0.5 27 4.2 Resource Management Introduction The RM module reserves memory for four in dependent traffic classes. Resources a re reserved for each RM-class, both in the upst ream and in the downstream direction (8 reservations in total).
Chapter 4 IP QoS Framework Overview E-NIT-CTC-20041213- 0013 v0.5 28 Mapping to internal class The RM module maps packets to the an in ternal class depending on ATM QoS, VLAN priority or DSCP setting s. The table below shows the relation between these settings.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 29 5 Packet Classification and Labelling Introduction This chapter will explain in detail how packet s are classified. This classification is configured via rules in a packet filter mechanism.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 30 5.1 Classification Introduction The basic objective of the Classification mo dule in the SpeedTouch™ is the following: .
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 31 5.1.1 Order of classification rules Introduction The SpeedTouch™ will first check the routing rules and assign a routing-label when a rule is hit. Secondly the packet will go th rough the QoS rules and a qos-label will be assigned if a rule is hit.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 32 Example So, in the example shown in the previous figure, the rules will be applied to incoming packets in the following o.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 33 5.2 Labels Introduction This section will explain in d e tail how to configure labels through the CLI. As mentioned before labels are used to as sign a user friendly name to a packet for internal usage.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 34 Adding a label Execute the following CLI command to add a label: The example above will add a l a bel with the name “mylabel” Label parameters Now that we have added a label we can configu re its parameters.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 35 5.2.1 Label parameters explained Introduction This section will explain in d e tail the label parameters and their values.The first part explains the parameters used to set the pr iority for internal use like mapping to one of the 16 in ternal classes.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 36 Ackclass The ackclass parameter is used to select th e DiffServ queue for single ACK segments of a TCP connection. Bidirectional Bi-direction al labeling of connections is used to copy the label (Routing and/or QoS) from the initiator stream to the returning stre am.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 37 In this case the child connection would be the connection on port 20 of the FTP server.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 38 5.2.2 Using TOS, DSCP or Precedence Introduction In this section we will explain the parame ters that need to be set t o enable QoS throughout th e entire network. This means th at these values are only of significance for outgoing fraffic.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 39 DSCP When using DSCP the QoS definition is narrowed down to 21 values. This is th e most common value used to define QoS. This definition is also backwards compatible with TOS and Precedence.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 40 5.2.3 For warding parameters. Introduction In this section we will explain the paramete rs that need to be set t o enable packet forwarding throughou t the entire network. Th is means that these values are only of significance for outgoing fraffic.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 41 Deleting a label Labels can be deleted one by one with the delete command.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 42 5.3 Rules Introduction Rules are used to define two things: The relation between the chains. The criteria to check before assigning a label to a packet. We will only discuss rules used to assign a label to a packet in this document.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 43 5.3.1 Rules parameters explained Introduction These are the parameters that ca n be used to define a r ule. We will now have a closer look at these parameters and explain what they are used for.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 44 Srcip Dstip Ser v Srcip values Description private, ssdp_ip, mdap_ip, _10.0.0.138, _192.168.1.254 The srcip parameter is used to the source address of the packet, this can be any ip address.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 45 Log State Label Modifying a rul e Rules that have been created can be modified with t he modi fy command. The parameters for the modify command are exactly the same as those for the ad d command.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 46 The output of this command will look like this: This is only an ex ample of the output, it is possible that th e values represented here do not matc h your outp ut.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 47 5.3.2 Rule debug commands Introduction Under the subgr oup rule there is an other subgroup called debug.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 48 Stats Execute the following CLI command to show the statistics of all rules. The output can be refined by adding the chain and index of the rule you want to see the stats from .
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 49 5.4 Chains Introduction A chain or sub-chain can be useful for personal ordering or group ing but is not necessary.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 50 Delete a chain The chains can be deleted one by one or they can all be deleted with a single command.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 51 5.4.1 Define a relation between chains Introduction If sub-chains are created manualy they need to be linked to a parent chain, this can be done as follows.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 52 5.5 Expressions Definition Expressions are used in rules for sour ce and destination interface, source and destination IP address (es) (ranges) and services. There are three types of expressions : Interface related expressions.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 53.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 54 Bridgepor t The bridgeport number can be found in the eth subgroup. Un der the eth bridge subgroup.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 55 Dscp Proto Srcpor t dscp value D escription ef, af11, af12, af13, af21, af22, af23, af31, af32, af33, af41, af42, af43, cs0, cs1, cs2, cs3, cs4, cs5, cs6, cs7 One of these values can be used to define an expression related to the diffserv code point in the IP packet.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 56 Srcpor tend Dstpor t Dstpor tend Icmptype srcpor tend value Description at-echo, at-nbp, at- rtmp, at-zis, auth, bgp,biff,... One of these or many other ports can be selected to define an expression related to a source port range.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213-0013 v0.5 57 Icmpcode Icmpcodeend Delete an expression Execute the following CLI command to delete an expression : This command will delete the expression with the name ftp and index 2. An index number needs to be pr ovided as an expression name can have more tha n one index.
Chapter 5 Packet Classification and Labelling E-NIT-CTC-20041213- 0013 v0.5 58 List an expression Execute the following CLI command to view a list with all the expressions: The output will look like this : There are expressions that start with _ like _ 10.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 59 6 Meters, queues and IPQoS Introduction In this chapter we will have a closer lo ok at the IPQoS command group. This command group is us ed to configure the IPQoS parameters like the meters and queues.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 60 6.1 Meters and queues Meters Meters are used to limit the bandwidth for a certain interface. This is done by setting a drop and a mark rate. How this is done will be discussed later on in this chapter.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 61 6.2 The IPQoS command group Over view The queues,meters and EF timers can be configured through the IPQoS command group.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 62 queue command group queue config list stats clear.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 63.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 64.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 65 MTU explained. In this section we will have a closer look at the MTU values and what exactly does it do. Sometimes it might be usefull to lower the MT U of a link w hen EF data is to be sent.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 66 The table below shows the delay a packet can experience depending on t he MTU and link speed. The higher the MTU the higher the delay w ill be. Also the lo wer the bandwidth the higher the delay.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 67 6.4 Meter command group Introduction The meter command grou p is used to configur e rate limiting. This allows aggregated data to be pol iced to pre-confi gured ban dwi dths. This rate limitin g can be config ured for a specific interface, ip address or servi ce.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 68 6.4.1 Meter config command Meter parameters The table below shows all the parameters that can be config ured by using the meter config command. Meter config parameters explained In this section we will explian the meter pa rameters in detail and how to configure a meter.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 69 Intf Droprate Markrate Burst Rate limiting is done by means of a to ken bucket. A token bucket is a formal definition of a rate of transfer. It has th ree components: a burst size, a drop rate , and a time interval.
Chapter 6 Meters, queues and IPQoS.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 71 Dscp Precedence Classification Class dscp value D escription ef, af11, af12, af13, af21, af22, af23, af31, af32, af33, af41, af42, af43, cs0, cs1, cs2, cs3, cs4, cs5, cs6, cs7 or a number The diffserv code poin t value to be set.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 72 Meter delete command The delete command is used to de lete a meter from the meters list. For example: the following CLI command will delete the meter with name “test2” from the meter list.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 73 Meter stop command By using the stop c ommand a meter can be deactivated. For example: the command below w ill stop the meter with name “my_meter” To check if the meter is stopped or not you can use the list command.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 74 6.4.2 Packet flow Illustration The figure below illustrates the packet flow in case label based metering is used. Stage Description 1 A packet arrives in the resource management module and gets classified based upon a rule set.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 75 6.5 Queue command group Introduction With the queue command gro up the queues can be individually configured. Parameters like queue propagation, ENC mark ing and queu e size can be defined here.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 76 6.5.1 Queue config parameters explained In this section we will have a closer look at the different parame ters and their values. Dest Queue Propagate Ecnmarking dest value Description phonebook entry The name of the interface you want to configure.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 77 Ackfiltering Example The figure below illustrates how ack filtering is done. An upload data stream is exists (data packets).
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 78 Maxpackets As we will see further on there is a maxpackets parameter in the IPQoS settings which sets the max number of packets that can be placed in all queues (0.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 79 Resbytes Hold Markprob The early discard strategy will calcula te the drop probability based on the BLUE algorithm, which uses packet loss and link utilization hist ory to manage congestion.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 80 Queue list command The list command will show you a listing of all queues and their configuration settings. This command can be r efined by adding the dest parameter. This way only the queues of one ATM interface can be shown.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 81 6.6 IPQoS Command group Introduction The IPQoS command group is used to configur e the common parameters for a set of queues instantiaded per interface.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 82 6.6.1 Ipqos config parameters explained Introduction In this section we will have a closer look at the different parame ters and their values. Dest State Discard dest value Description phonebook entry The name of the interface.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213-0013 v0.5 83 Priority Realtimerate Burstsize priority value De scripti on strict In case strict is selected as s chedulin g algorit hm, each queue will be served as long as data is present in the queue.
Chapter 6 Meters, queues and IPQoS E-NIT-CTC-20041213- 0013 v0.5 84 We i g h t Maxpackets Maxbytes Ipqos list command The list command is used to display the ipqos settings configured.
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213-0013 v0.5 85 7 Scenario 1: Residential user . Introduction In this chapter describes an example of how IP Q oS might be used in a typical residential user scenario.
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213- 0013 v0.5 86 7.1 Configuring labels and rules for V oIP . Introduction We will now have a closer look at the p ara meters needed to configure classification for Voice over IP.
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213-0013 v0.5 87 Rules Select the IP QoS Rules tab to define one or more rules to get this label assigned to the proper packets.
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213- 0013 v0.5 88 Expressions We will now have a look at these two expr essions. Therefore go to the expression page and select the service tab .
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213-0013 v0.5 89 When we click on the + next to the H323 expression we can see the definitions used for this expression. Here we can see that the expression h323 is used for packets : of the type TCP ( proto=6 ) with destination port 1720 .
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213- 0013 v0.5 90 7.2 Configuring labels and rules for DSCP . Introduction We will now have a closer look at the p ara meters needed to configure classification for packets with DSCP set. Labels Go to the classification menu and select the Labels tab .
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213-0013 v0.5 91 Expressions We will now have a look at this expression. Therefore go to the exp ression page and select the Service tab : Expert mode -> IP Ro uter -> Expressions This will show you a list of service expressions defined, if a default configuration is used.
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213- 0013 v0.5 92 7.3 Configuring labels and rules for Interactive traffic. Introduction We will now have a closer look at the p ara meters needed to configure classification for interactive traffic.
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213-0013 v0.5 93.
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213- 0013 v0.5 94 Expressions We will now have a look at the http expression. Go to the expression page and select the Service tab . Expert mode -> IP Ro uter -> Expressions This will show you a list of service expressions defined by default.
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213-0013 v0.5 95.
Chapter 7 Scenario 1: Residential user. E-NIT-CTC-20041213- 0013 v0.5 96 IP QoS queues Go to the IP QoS menu and select the Queues tab . Expert mode -> IP Ro uter -> IP QoS This section on the IPQoS pa ge is used to configure propagatio n of the queues, ECN marking and ACK filtering.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213-0013 v0.5 97 8 Scenario 2: Business user with TOS marking. Introduction In this chapter we will explain on h ow IP QoS for a business user can be configured.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213- 0013 v0.5 98 Configuration The illustration below helps us to visualise e the setup. We will use three different LAN segements. 1 The “GOLD” segment using IP adre sses in the range of 10.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213-0013 v0.5 99 8.1 Labels Label configuration We will now have a look at the labels that we will need. We have five different clas ses of traffic, which means that we will need 5 labels: 1 A VoIP label for voice traffic.
Chapter 8 Scenario 2: Business user with TOS marking..
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213-0013 v0.5 101 Silver label To create a label called Silver proceed as followed: 1 On the Label page click new at the bo ttom. You will now get a configuration screen at the bottom of the page.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213- 0013 v0.5 102 Bronze label To create a label called Silver proceed as followed: 1 On the Label page click new at the bo ttom. You will now get a configuration screen at the bottom of the page.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213-0013 v0.5 103 8.2 Rules. Rules configuration We will now have a look at the rules that w e will need. We will need 8 rules: Two VoIP rules for voice traffic. (SIP and H323). Three Management rules for man age ment traffic.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213- 0013 v0.5 104 Vo I P r u l e s We will now add the two VoIP ru les to the QoS_user_rule list. Go to the Classification page and select the IP QoS Rules tab . Expert mode -> IP Ro uter -> Classification Then proceed as followed: 1 Click New .
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213-0013 v0.5 105 A second rule needs to be defined for VoIP. This rule will be used for voic e packets using the H323 protocol. To do so proceed as followed: 1 Click the New . You will now be able to add a new rule.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213- 0013 v0.5 106 Management rules Now we will add the three Management rules to the QoS_user_rule list. To do so proceed as followed: 1 Click New . You will now be able to add a new rule.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213-0013 v0.5 107 A second rule needs to be defined fo r Management. This rule will be used for management packets using the ICMP protocol. 1 Click New . You will now be able to add a new rule.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213- 0013 v0.5 108 A third rule needs to be defined for Management. This rule will be used for management packets using the IKE protocol. 1 Click New . You will now be able to add a new rule.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213-0013 v0.5 109 Gold ru le We will now continue by adding the Gold rule to the QoS_user_rule list. Proceed as followed: 1 Click New . You will now be able to add a new rule. 2 Set Inde x to 6.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213- 0013 v0.5 110 Silver ru le We will now continue by adding the S ilver rule to the QoS_user_rule list. Proceed as followed: 1 Click New . You will now be able to add a new rule. 2 Set Inde x to 7 .
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213-0013 v0.5 111 Bronze rule We will now continue by adding the Bronze rule to the QoS_user_rule list. Proceed as followed: 1 Click New . You will now be able to add a new rule. 2 Set Inde x to 8 .
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213- 0013 v0.5 112 8.3 IPQoS per PVC Introduction Now we need to enable IPQoS on th e PVC used to access the internet. In our scenario we will use atm_pvc_0_35 to access the internet.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213-0013 v0.5 113 Queues As seen in the introduction we will need an overflow of pa ckets in the real time queue to a lower priority queue (WFQ4)when the EF traf fic is exceeding 50% of the bandwidt h.
Chapter 8 Scenario 2: Business user with TOS marking. E-NIT-CTC-20041213- 0013 v0.5 114.
Chapter 9 Scenario 3: Metering E-NIT-CTC-20041213-0013 v0.5 115 9 Scenario 3: Metering Introduction To explain interface base metering we will t ake the setup from th e previous scenario. The total upload bandwidth availlabl e for this scenario is 512Kbps.
Chapter 9 Scenario 3: Metering E-NIT-CTC-20041213- 0013 v0.5 116 We now have a meter configured which will limit the upload ban dwidth for the Bronze group to 64Kbps. We still need to start the meter. To do so pro ceed as followed: 1 Check the status check box.
Reference List E-NIT-CTC-20041213-0013 v0.5 117 Reference List RFC791 INTERNET PROTOCOL. RFC2475 An Architecture for Differentiated Services. RFC1812 Requirements for IP Version 4 Routers. RFC3140 Per Hop Behavior Identification Cod es. RFC3168 The Addition of Explicit Congestion Notification (ECN) to IP.
Reference List E-NIT-CTC-20041213- 0013 v0.5 118.
Abreviation List E-NIT-CTC-20041213-0013 v0.5 119 Abreviation List ABR Available Bit Rate AF Assured Forwarding ATM Asynchronous Transfer Mode BA Behavior Agregate CBR Constant Bit Rate CE Congestion .
Abreviation List E-NIT-CTC-20041213- 0013 v0.5 120.
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Need more help? Additional help is available online at www.speedtouch.com © THOMSON 2005. Al l rights rese rved. E-NIT- C TC-20041 213-0013 v0. 5 ..
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il RCA THOMSON SpeedTouchTM (Wireless) Business DSL Router è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del RCA THOMSON SpeedTouchTM (Wireless) Business DSL Router - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso RCA THOMSON SpeedTouchTM (Wireless) Business DSL Router imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul RCA THOMSON SpeedTouchTM (Wireless) Business DSL Router ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il RCA THOMSON SpeedTouchTM (Wireless) Business DSL Router, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del RCA THOMSON SpeedTouchTM (Wireless) Business DSL Router.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il RCA THOMSON SpeedTouchTM (Wireless) Business DSL Router. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo RCA THOMSON SpeedTouchTM (Wireless) Business DSL Router insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
