Nortel Networks 5510, 5520, 5530 8 CoS , 7 CoS

Filters and QoS Configuration for ERS 5500

Technical Configuration Guide v2.0 NN48500-559

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External Distribution

15

• 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 t he 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 s haring (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 s etting. The mapping of 802.1p

priority to egress CoS queue, dequeuing algorithm, and queue weight is g iven. 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

Internal

Priority

Egress

CoS

Queue

Dequeuing

Algorithm Weight

Regular

Memory/

# of 1518

Byte

Packets

Large

Memory/ #

of 1518

Byte

Packets

Max

Memory/ #

of 1518

Byte

Packets

36864B 49152B 131072B

7 1 Strict 100%

24 32 86

36864B 47104B 123392B

6 2 41%

24 31 81

27648B 45056B 115712B

5 3 19%

18 29 76

18432B 43008B 108032B

4 4 13%

12 28 71

18432B 39936B 97792B

3 5 11%

12 26 64

18432B 36864B 85504B

2 6 8%

12 24 56

18432B 33792B 70656B

1 7 5%

12 22 46

18432B 30720B 54272B

8 CoS

0 8

Weighted

Round Robin

3% 12 20 35

36864B 49152B 144640B

7 1 Strict 100%

24 32 95

32768B 46080B 131840B

6 2 45%

21 30 86

26624B 39936B 120064B

5 3 21%

17 26 79

19968B 33280B 109824B

7 CoS

4 4

Weighted

Round Robin

15% 13 21 72

Contents

Main Page Abstract Table of Contents List of Figures List of Tables Document Updates Conventions Symbols: Text: 1. Overview: Ethernet Routing Switch 5500 QoS and Filtering Classification Actions Supported Statistics 2. QoS Flow Chart or 3. Filter Functionality 3.1 Overall Classification Functionality 3.2 Classifier Block Functionality 3.3 Port Range Functionality 3.4 Policies Page 4. Queue Sets 8 CoS 7 CoS 6 CoS 5 CoS 4 CoS 3 CoS 2 CoS 1 CoS Page 5. Traffic Meter and Shaping 5.1 Actual Bucket Size 5.2 Policing Traffic Page 5.3 Interface Shaper 6. Default Nortel Class of Service 7. QoS Access Lists (ACL) 7.1 ACL Configuration 7.1.1 IP-ACL Configuration 7.1.2 L2-ACL Configuration 7.1.3 ACL-Assign Configuration 7.1.4 ACL Configuration Example The DSCP value are entered in decimal; please refer to section 6 for details The following table displays the various protocol numbers: Protocol Number Protocol 1 ICMP 2 IGMP 6 TCP 17 UDP 46 RSVP 5530H-24TFD#show qos ip-acl 5530H-24TFD#show qos policy Page 8. IP Security Features 8.1 DHCP Snooping 8.1.1 DHCP Snooping Configuration 8.2 Dynamic ARP Inspection 8.2.1 Dynamic ARP Inspection Configuration 8.3 IP Source Guard 8.3.1 IP Source Guard Configuration 9. BPDU Filtering 9.1 BPDU Filtering Configuration 10. QoS Interface Applications 10.1 ARP Spoofing 10.2 DHCP Attacks 10.3 DoS 10.4 BPDU Blocking 11. Configuration Steps Policy Configuration 11.1 Role Combination 11.2 Classification o One IP and one L2 classifier element ERS5500-48T(config)#qos classifier-block 2 block-number 1 name block_1 se t-id 4 11.3 Meters 11.4 Add a New Policy 12. Configuration Examples 12.1 Pre-defined Values 12.2 Configuration Example 1 Traffic Meter Using Policies 12.2.1 ERS5500 Configuration Using Policies Page 12.2.2 Verify Operations 12.2.3 Verify Classifier and Classifier Block Configuration Step 1 Verify that the 3 Classifiers ERS5500-24T# show qos classifier Result: Step 3 Verify that the Meter Configuration Step 3 Verify that the Classifier Block with the correct classifier and m eter number ERS5500-24T#show qos classifier-block Result: 12.2.3.1 Verify Policy Configuration Step 1 Verify that the QoS Policy ERS5500-24T#show qos policy Result: 12.3.1 ERS5500 Configuration Page Page 12.3.2 Verify Operations Page ERS5500-24T# show ip source binding Result: ERS5500-24T#show qos ip-acl Result: Page Page Step 2 To view the IP ACL assignment, enter the following comm and: ERS5500-24T#show qos acl-assign Result: 12.4 Configuration Example 3: Port Range Using ACL or Policy 12.4.1 Configuration Using Policies 12.4.2 Configuration Using IP-ACLs 12.5 Configuration Example 4 L2 Classification Based on MAC Address 12.5.1 ERS5500 Configuration Using Policies 12.5.2 ERS5500 Configuration Using IP-ACLs 12.6 Configuration Example 5 L2 and L3 Classification 12.6.1 ERS5500 Configuration Using Policies Page 12.7.1 ERS5500 Configuration 12.7.2 ACL Configuration 12.7.3 Policy Configuration 12.7.4 Verify Operations 12.8 Configuration Example 7 Interface Shaping 12.8.2 Verify Operations 13. Software Baseline 14. Reference Documentation