Alcatel Lab Basic QoS Configuration

Section 5 Introduction to Quality of Service

Module 2 Lab - Basic QoS Configuration

Section 5 Module 1 Lab - Basic QoS Configuration Page 2

Alcatel 7450 Implementation R2.0 Alcatel University

All rights reserved 2004, AlcatelBasic QoS Lab

7450 ESS Implementation R2.0



Module Objectives Upon successful completion of this module, the student will be able: Create a basic QoS policy



Basic Quality of Service Lab Configure QoS policies to achieve the following: Most traffic ingressing on SAP 1/1/1 on VPLS Service XXX should pass through the 7750 unshaped and enter the MPLS network core with a forwarding class of EF. Web traffic (going from the customer to the web needs to be shaped to a maximum rate of 20Mb/s. The first 10Mb/s of Web traffic should egress the node into the MPLS core network with a QoS FC = BE in-profile, the remainder of the Web traffic should exit with FC = BE out-ot-profile. The following steps assume a working VPLS Service (ID of XXX) on your node. 1. Display the settings for SAP QoS ingress policy 1 (default policy). SR# show qos sap-ingress 1 Note: The default qos ingress policy classifies all incoming traffic as FC BE regardless of

the settings of any DSCP, 802.1p bits etc.

Sap ingress traffic can be classified into one of eight internal forwarding classes (FC) based on several match criteria (MAC, 802.1p, or L3-L7).

All traffic is marked internally as having come from a SAP or network port.




QoS Lab

SAP

Queue 2

Queue 3

FC=Be

FC=Ef

CIR=10000PIR=20000

CIR=0PIR=Max

Be in-profile

Be out-of-profile

lsp-exp-in-profile 5

lsp-exp-out-profile 0

Network Egress Port

Port 1/1/1

Internet

Web Traffic

Non-WebTraffic

(BE in-profile)

(Be out-of-profile default)

Egress Queue 4

CIR=10000PIR=20000



2. Display the settings for the default SAP ingress and network policies. SR# configure qos SR>config>qos# info detail #------------------------------------------ echo "QoS Policy Configuration" #------------------------------------------ sap-ingress 1 create description "Default SAP ingress QoS policy." scope template queue 1 auto-expedite create no parent adaptation-rule pir closest cir closest rate max cir 0 mbs default cbs default high-prio-only default exit network 1 create description "Default network QoS policy." scope template ingress default-action fc be profile out Note: By default all incoming traffic is classified as BE out-of-profile. Default queue settings: PIR(rate) = MAX and CIR = 0 3. Create a new SAP ingress policy, policy #10. The default SAP ingress QoS policy

(#1) has two queues associated with it, Queue 1 (unicast) and Queue 11 (multipoint). We will be creating two new queues, queues 2 and 3.

SR# configure qos sap-ingress 10 create SR>config>qos>sap-ingress$ description Web Traffic Ingress QoS Policy SR>config>qos>sap-ingress$ info

description "Web Traffic Ingress QoS Policy" queue 1 create exit queue 11 multipoint create

exit



4. Create new queues for your SAP ingress policy. SR>config>qos>sap-ingress$ queue 2 create SR>config>qos>sap-ingress>queue$ rate 20000 cir 10000 SR>config>qos>sap-ingress>queue$ back SR>config>qos>sap-ingress$ queue 3 create SR>config>qos>sap-ingress# info

description "Web Traffic Ingress QoS Policy" queue 1 create exit queue 2 create exit

queue 3 create exit queue 11 multipoint create exit 5. Create a QoS traffic filter to separate incoming Web traffic from other traffic. SR>config>qos>sap-ingress# ip-criteria SR>config>qos>sap-ingress>ip-criteria# entry 10 create SR>config>qos>sap-ingress>ip-criteria>entry$ description www_ingress_filter Note: use IP criteria to identify the web traffic going to a web server. Note: Protocol 6 identifies TCP in the protocol field of the Ip header Port 80 is HTTP at the application layer. SR>config>qos>sap-ingress>ip-criteria>entry$ match protocol 6 dst-port eq 80



SR>config>qos>sap-ingress>ip-criteria>entry$ info

description "www_ingress_filter" match protocol 6 dst-port eq 80 exit action Note: mark all ingress web traffic as best effort. SR>config>qos>sap-ingress>ip-criteria>entry$ action fc be SR>config>qos>sap-ingress>ip-criteria>entry$ info

description "www_ingress_filter" match protocol 6 dst-port eq 80 exit action fc be SR>config>qos>sap-ingress>ip-criteria# back Note: set the default FC mapping for traffic that does not match your IP criteria for web traffic. SR>config>qos>sap-ingress# default-fc ef



SR>config>qos>sap-ingress# info description "Web Traffic QoS Ingress Policy" queue 1 create exit queue 2 create exit

queue 2 create exit queue 11 multipoint create exit ip-criteria entry 10 create description "www_ingress" match protocol 6 dst-port eq 80 exit action fc be exit exit default-fc ef 6. Configure the FC to queue mappings. SR>config>qos>sap-ingress# fc ef create SR>config>qos>sap-ingress>fc# queue 3 SR>config>qos>sap-ingress>fc# back SR>config>qos>sap-ingress# info



description "Web Traffic QoS Ingress Policy" queue 1 create exit queue 2 create exit

queue 2 create exit queue 11 multipoint create exit fc ef create queue 3 exit ip-criteria entry 10 create description "www_ingress" match protocol 6 dst-port eq 80 exit action fc be exit exit default-fc ef SR>config>qos>sap-ingress# fc be create SR>config>qos>sap-ingress>fc# queue 2 SR>config>qos>sap-ingress>fc# back



SR>config>qos>sap-ingress# info

description "Web Traffic QoS Ingress Policy" queue 1 create exit queue 2 create exit

queue 3 create exit queue 11 multipoint create exit fc be create queue 2 exit fc ef create queue 3 exit ip-criteria entry 10 create description "www_ingress" match protocol 6 dst-port eq 80 exit action fc be exit exit default-fc ef 7. Create a SAP egress policy SR# configure qos sap-egress 11 create SR>conf>qos>sap-egress$ description QoS Egress Traffic SR>conf>qos>sap-egress$ queue 4 create SR>conf>qos>sap-egress>queue$ rate 20000 cir 10000 SR>conf>qos>sap-egress>queue$ back SR>conf>qos>sap-egress$ fc be create SR>conf>qos>sap-egress>fc$ queue 4 SR>conf>qos>sap-egress>fc$ exit all



7. Apply your SAP policies to the SAP on port 1/1/1/ for VPLS Service XXX. SR# configure service vpls XXX SR>config>service>vpls# sap 1/1/1 SR>config>service>vpls>sap# ingress qos 10 SR>config>service>vpls>sap# egress qos 11 SR>config>service>vpls>sap# exit SR>config>service>vpls# info

description "VPLS XXX" stp no shutdown exit sap 1/1/1 create ingress qos 10 egress qos 11 exit exit mesh-sdp x:xxx create exit mesh-sdp x:xxx create exit mesh-sdp x:xxx create exit no shutdown SR>config>service>vpls# exit all 8. Remap the in-profile Web traffic from the BE queue to an MPLS EXP value of 5 in

the MPLS header. This EXP value identifies in-profile Web traffic leaving the node from Queue 2 on a network egress interface.

SR# configure qos network 10 create SR>config>qos>network$ description Remark In-Profile Web Traffic SR>config>qos>network$ egress fc be lsp-exp-in-profile 5



SR>config>qos>network$ info

description "Remark In-Profile Web Traffic" ingress exit egress fc be lsp-exp-in-profile 5 exit exit




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Alcatel Lab Basic QoS Configuration

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