Nortel Networks 5530, 5520 12.7.1 ERS5500 Configuration, Dscp Mapping via Un-restricted Port Role

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Filters and QoS Configuration for ERS 5500
Technical Configuration Guide	v2.0	NN48500-559

12.7Configuration Example 6 - QoS Marking with Port Role Combination set for Un-restricted using ACL’s

With a port role combination of un-restricted, the DSCP value is passed as-is and is not looked at by the ERS5500 internal QoS mapping. This does not apply to the p-bit which is looked at, honoured, and mapped according to the QoS priority mapping table. If you wish to apply QoS to the DSCP value on an unrestricted port member, either ACL’s or policies must be defined where you need to map the DSCP value to the appropriate egress queue. For this example, we will demonstrate how to configure the ERS5500 to support internal QoS mapping for various DSCP values.

Figure 6: DSCP Mapping via Un-restricted Port Role

For this example, assume we wish to accomplish the following in regarded to the untagged VLAN

5 ingress port members:

•Set a port role of un-restricted with port members 3 to 6

•Select queue set 8 with 8 queues

•For ingress port members 3-5, we wish to map the following DSCP values. Please use the “show qos queue-set-assignment” command to display the

oFor DSCP 0x12 (Silver CoS), map to egress queue 5

oFor DSCP 0x1a (Gold CoS), map to egress queue 4

oFor DSCP 0x22 (Platinum CoS), map to egress queue 3 To accomplish the above, please follow the configuration steps below.

12.7.1ERS5500 Configuration

12.7.1.1 Create VLAN 5

ERS5500: Step 1 – Remove port members from default VLAN and create VLAN 5

5500(config)#vlan members remove 1 3-6

5500(config)#vlan create 5 type port

5500(config)# vlan members add 5 3-6

12.7.1.2 Create Queue Set 8

ERS5500: Step 1 – Add queue set 8; please note that you must reboot the switch for the queue set to take effect

5500(config)#qos agent queue-set 8

5500(config)#boot

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Contents Ethernet Routing Switch NN48500-559 Abstract Table of Contents List of Tables List of FiguresText Document UpdatesSymbols ConventionsOverview Ethernet Routing Switch 5500 QoS and Filtering ƒ Layer 2 Classifier Elements ClassificationUntrusted Ports Unrestricted PortsStatistics Actions SupportedQoS Flow Chart Overall Classification Functionality Filter FunctionalityClassifier Block Functionality 7, 15, 31, 63 255, 511, 1025 4095, 8191 32762, or Min = Port Range FunctionalityPolicies Default Policy Drop ActionNN48500-559 5520-24T-PWRconfig#default qos agent buffer 5520-24T-PWRconfig#qos agent buffer large maximum regularQueue Sets Egress CoS Queuing Ethernet Routing Switch 5500 Egress CoS QueuingCoS 5520-24T-PWRconfig#qos agent queue set 5520-24T-PWRconfig#show qos queue-set-assignment5520-24T-PWRconfig#qos agent reset-default 5520-24T-PWRconfig#default qos agent queue-setEgress Queue Recommendations Bucket Size Traffic Meter and ShapingParameter Description Actual Bucket SizePolicing Traffic Actual Bucket Size in Bytes Actual size in bytes InterfaceExample Meter Bucket Size and Duration Interface ShaperBucket Size Max burst rate Committed rate Duration MSec 5530-24TFDconfig#show qos if-shaper port Hex Decimal Default Nortel Class of ServiceDefault Nortel CoS Markings BinaryConfig#qos ip-acl name 1..16 character string ? QoS Access Lists ACLACL Configuration IP-ACL ConfigurationConfig#qos l2-acl name 1..16 character string ? 2 L2-ACL ConfigurationACL-Assign Configuration ACL Configuration Example5530H-24TFD#show qos acl-assign Verification5530H-24TFD#show qos ip-acl 5530H-24TFD#show qos policy Changing ACL 5500config#no qos acl-assign5500config#no qos acl-assign 1 port 1/19 5500config#no qos ip-aclDhcp Snooping IP Security FeaturesDhcp Snooping Configuration Dynamic ARP Inspection ConfigurationIP Source Guard IP Source Guard ConfigurationBpdu Filtering Bpdu Filtering ConfigurationQoS Interface Applications QoS Applications Number of Classifiers Used FeatureARP Spoofing Configuration ExampleDhcp Snooping Dhcp Attacks10.3 DoS Bpdu Blocking ERS5500-48T#show qos if-group Configuration Steps Policy ConfigurationRole Combination ERS5500-48T#show qos if-assignIP Element ERS5500-48Tconfig#qos ip-element 1-64000?Classification Adding IP and L2 ElementAdding a Classifier Block Adding a ClassifierParameters and variables Description MetersAdd a New Policy Pre-defined Values Configuration ExamplesQoS Action Configure the IP elements Configuration Example 1 Traffic Meter Using Policies12.2.1 ERS5500 Configuration Using Policies Configure the Interface Role CombinationConfigure the Classifier Block Configure MetersERS5500 Create the classifier block Verify the Role Combination Configure the PolicyVerify Operations ERS5500 Create the policyName m1 Verify Classifier and Classifier Block ConfigurationERS5500-24T#show qos classifier-block Verify Policy Configuration Verify that the QoS Policy IP ACL, Dhcp Snooping, ARP Inspection, and Source Guard 12.3.1 ERS5500 ConfigurationERS5500 Add IP address to Vlan 700 and enable Ospf ERS5500 Enable ARP-Inspection for VLAN’s 110 Verify DHCP-Snooping ERS5500 Assign the IP-ACL’s to portsVID Verify ARP InspectionVerify IP Source Guard Verify ACL ConfigurationNN48500-559 NN48500-559 ERS5500-24T#show qos acl-assign TCP Port Range Configuration Example 3 Port Range Using ACL or PolicyConfigure the Policies Configuration Using PoliciesERS5500 Create IP elements for UDP port range ERS5500 Remark all other traffic to Bronze Configuration Using IP-ACL’sCreate Policy 12.5.1 ERS5500 Configuration Using PoliciesERS5500 Pass all other traffic with standard CoS 12.5.2 ERS5500 Configuration Using IP-ACL’sERS5500 Assign the L2-ACL’s to ports 12.6.1 ERS5500 Configuration Using Policies Configuration Example 5 L2 and L3 ClassificationERS5500 Add L2 elements for Vlan 110 Configure Classifier and Classifier BlocksDscp Mapping via Un-restricted Port Role 12.7.1 ERS5500 ConfigurationPolicy Configuration ACL ConfigurationID ID View the Queue AssignmentsEnable Shaping on Port Configuration Example 7 Interface ShapingVerify Shape Rate Configuration Reference Documentation Software BaselineContact us