Nortel Networks 5530, 5520, 5510 manual Ethernet Routing Switch 5500 Egress CoS Queuing

Page 16

Filters and QoS Configuration for ERS 5500

 

 

Technical Configuration Guide

v2.0

NN48500-559

•If you are using (the AppleTalk Filing Protocol) AFP, use large or maximum resource sharing (AFP use a fix windows size set to 65,535K).You should use the large resource sharing setting:

•If you are using your 5520 for high bandwidth application such as video.

•If you are using large TCP windows for your traffic, use large resource sharing (you can also reduce the TCP windows size on windows operating system - see Microsoft TechNet article 224829).

•If you have 4 or fewer ports connected per group of 12 ports.

You should use the Regular resource sharing setting:

•If you are using your 5520 in a VOIP environment.

•If you have 5 or more ports connected per group of 12 ports.

Egress CoS Queuing

The following charts describe each possible egress CoS queuing setting. The mapping of 802.1p priority to egress CoS queue, dequeuing algorithm, and queue weight is given. Additionally, the memory and maximum number of packets which can be buffered per egress CoS queue and resource sharing settings is shown.

Table 5: Ethernet Routing Switch 5500 Egress CoS Queuing

Setting

8 CoS

Internal

Egress

 

Dequeuing

Weight

CoS

 

Priority

 

Algorithm

Queue

 

 

 

 

 

 

 

7

1

 

Strict

100%

 

 

 

 

 

 

6

2

 

 

 

41%

 

 

 

 

 

 

5

3

 

 

 

19%

 

 

 

 

 

 

4

4

 

 

 

13%

 

 

 

Weighted

 

 

3

5

 

 

11%

 

Round Robin

 

 

 

 

 

 

2

6

 

 

 

8%

 

 

 

 

 

 

1

7

 

 

 

5%

 

 

 

 

 

 

0

8

 

 

 

3%

 

 

 

 

 

 

Regular

Memory/

#of 1518 Byte Packets 36864B 24 36864B 24 27648B 18 18432B 12 18432B 12 18432B 12 18432B 12 18432B 12

Large

Max

Memory/ #

Memory/ #

of 1518

of 1518

Byte

Byte

Packets

Packets

49152B

131072B

3286

47104B 123392B

3181

45056B 115712B

2976

43008B 108032B

2871

39936B 97792B

2664

36864B 85504B

2456

33792B 70656B

2246

30720B 54272B

2035

7 CoS

7

6

5

4

1

 

Strict

100%

 

 

 

 

 

2

 

Weighted

 

45%

 

Round Robin

 

 

 

 

 

3

 

 

 

21%

 

 

 

 

 

4

 

 

 

15%

 

 

 

 

 

36864B

24

32768B

21

26624B

17

19968B

13

49152B

144640B

3295

46080B 131840B

3086

39936B 120064B

2679

33280B 109824B

2172

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Contents Ethernet Routing Switch NN48500-559 Abstract Table of Contents List of Figures List of TablesDocument Updates SymbolsConventions TextOverview Ethernet Routing Switch 5500 QoS and Filtering Classification Untrusted PortsUnrestricted Ports ƒ Layer 2 Classifier ElementsActions Supported StatisticsQoS Flow Chart Overall Classification Functionality Filter FunctionalityClassifier Block Functionality Port Range Functionality 7, 15, 31, 63 255, 511, 1025 4095, 8191 32762, or Min =Default Policy Drop Action PoliciesNN48500-559 5520-24T-PWRconfig#default qos agent buffer 5520-24T-PWRconfig#qos agent buffer large maximum regularQueue Sets Ethernet Routing Switch 5500 Egress CoS Queuing Egress CoS QueuingCoS 5520-24T-PWRconfig#show qos queue-set-assignment 5520-24T-PWRconfig#qos agent queue set5520-24T-PWRconfig#qos agent reset-default 5520-24T-PWRconfig#default qos agent queue-setEgress Queue Recommendations Traffic Meter and Shaping Bucket SizeActual Bucket Size Policing TrafficActual Bucket Size in Bytes Actual size in bytes Interface Parameter DescriptionExample Meter Bucket Size and Duration Interface ShaperBucket Size Max burst rate Committed rate Duration MSec 5530-24TFDconfig#show qos if-shaper port Default Nortel Class of Service Default Nortel CoS MarkingsBinary Hex DecimalQoS Access Lists ACL ACL ConfigurationIP-ACL Configuration Config#qos ip-acl name 1..16 character string ?2 L2-ACL Configuration ACL-Assign ConfigurationACL Configuration Example Config#qos l2-acl name 1..16 character string ?5530H-24TFD#show qos acl-assign Verification5530H-24TFD#show qos ip-acl 5530H-24TFD#show qos policy 5500config#no qos acl-assign 5500config#no qos acl-assign 1 port 1/195500config#no qos ip-acl Changing ACLIP Security Features Dhcp Snooping ConfigurationDynamic ARP Inspection Configuration Dhcp SnoopingIP Source Guard Configuration IP Source GuardBpdu Filtering Configuration Bpdu FilteringQoS Applications Number of Classifiers Used Feature QoS Interface ApplicationsConfiguration Example ARP SpoofingDhcp Attacks Dhcp Snooping10.3 DoS Bpdu Blocking Configuration Steps Policy Configuration Role CombinationERS5500-48T#show qos if-assign ERS5500-48T#show qos if-groupERS5500-48Tconfig#qos ip-element 1-64000? ClassificationAdding IP and L2 Element IP ElementAdding a Classifier Adding a Classifier BlockMeters Parameters and variables DescriptionAdd a New Policy Pre-defined Values Configuration ExamplesQoS Action Configuration Example 1 Traffic Meter Using Policies 12.2.1 ERS5500 Configuration Using PoliciesConfigure the Interface Role Combination Configure the IP elementsConfigure the Classifier Block Configure MetersERS5500 Create the classifier block Configure the Policy Verify OperationsERS5500 Create the policy Verify the Role CombinationVerify Classifier and Classifier Block Configuration Name m1ERS5500-24T#show qos classifier-block Verify Policy Configuration Verify that the QoS Policy 12.3.1 ERS5500 Configuration IP ACL, Dhcp Snooping, ARP Inspection, and Source GuardERS5500 Add IP address to Vlan 700 and enable Ospf ERS5500 Enable ARP-Inspection for VLAN’s 110 ERS5500 Assign the IP-ACL’s to ports Verify DHCP-SnoopingVerify ARP Inspection VIDVerify ACL Configuration Verify IP Source GuardNN48500-559 NN48500-559 ERS5500-24T#show qos acl-assign Configuration Example 3 Port Range Using ACL or Policy TCP Port RangeConfigure the Policies Configuration Using PoliciesERS5500 Create IP elements for UDP port range Configuration Using IP-ACL’s ERS5500 Remark all other traffic to Bronze12.5.1 ERS5500 Configuration Using Policies Create PolicyERS5500 Pass all other traffic with standard CoS 12.5.2 ERS5500 Configuration Using IP-ACL’sERS5500 Assign the L2-ACL’s to ports Configuration Example 5 L2 and L3 Classification 12.6.1 ERS5500 Configuration Using PoliciesConfigure Classifier and Classifier Blocks ERS5500 Add L2 elements for Vlan 11012.7.1 ERS5500 Configuration Dscp Mapping via Un-restricted Port RoleACL Configuration Policy ConfigurationView the Queue Assignments ID IDEnable Shaping on Port Configuration Example 7 Interface ShapingVerify Shape Rate Configuration Software Baseline Reference DocumentationContact us
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