Allied Telesis x900-24 series User Manual

Browse online or download User Manual for Network switches Allied Telesis x900-24 series. Allied Telesis x900-24 series User's Manual

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C613-16058-00 REV C
www.alliedtelesis.com
AlliedWare
TM
OS
How To |
Introduction
The AT-9900, x900-48, and x900-24 series switches support a powerful hardware based
packet-filtering facility.
These switches can filter on a range of Layer 2, Layer 3, and Layer 4 packet attributes, and
perform a variety of different actions on the packets that match the filters.
Because the filters are hardware-based, they put no load on the CPU of the switch, and have
no affect on the throughput of the switch. It is possible to configure over
1
000 different
filters, and still have complete wire speed throughput on the switch.
The following configuration methods are available:
1. To filter traffic across all ports on the switch, create dedicated hardware filters.
2. To filter traffic on a per-port basis, apply filtering actions to QoS flow groups or traffic
classes.
This Note only describes method
1
. Method 2 is described in How To Configure Filtering Actions
on QoS Flow Groups and Traffic Classes, available from www.alliedtelesis.com/resources/
literature/howto.aspx.
Configure Hardware Filters on AT-9900, x900-48,
and x900-24 Series Switches
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Summary of Contents

Page 1 - How To

C613-16058-00 REV Cwww.alliedtelesis.comAlliedWareTM OSHow To |IntroductionThe AT-9900, x900-48, and x900-24 series switches support a powerful hardwa

Page 2 - Introduction

Page 10 | AlliedWare™ OS How To Note: Hardware FiltersHow many filters can you create?Protocol type—2 bytesEthernet format—2 bytesVLAN ID—2 bytesIP pr

Page 3

Page 11 | AlliedWare™ OS How To Note: Hardware FiltersHow many filters can you create?Okay length For example, this set of filters would work:source M

Page 4

Page 12 | AlliedWare™ OS How To Note: Hardware FiltersHow many filters can you create?How to see the current filter resource usage on the switchThe sh

Page 5 - Creating hardware filters

Page 13 | AlliedWare™ OS How To Note: Hardware FiltersAppendix A: How to use the layer 4 mask in classifiersAppendix A: How to use the layer 4 mask in

Page 6

Page 14 | AlliedWare™ OS How To Note: Hardware FiltersAppendix A: How to use the layer 4 mask in classifiersExample 1: ports 2000-2003Let’s say we wan

Page 7 - . The filter rules table

Page 15 | AlliedWare™ OS How To Note: Hardware FiltersAppendix A: How to use the layer 4 mask in classifiersExample 2: ports 5004-5008In some more com

Page 8 - Port Star t

Page 16 | AlliedWare™ OS How To Note: Hardware FiltersAppendix A: How to use the layer 4 mask in classifiersSo our biggest block fits into the range 5

Page 9 - 2. The profile (mask)

Page 17 | AlliedWare™ OS How To Note: Hardware FiltersAppendix A: How to use the layer 4 mask in classifiersThe following table shows the port ranges

Page 10

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Page 11

Page 2 | AlliedWare™ OS How To Note: Hardware FiltersIntroductionWhat information will you find in this document?This document contains the following:

Page 12 - Command output Description

Page 3 | AlliedWare™ OS How To Note: Hardware FiltersCreating dedicated hardware filtersCreating dedicated hardware filtersBefore we get into the deta

Page 13

Page 4 | AlliedWare™ OS How To Note: Hardware FiltersCreating dedicated hardware filtersConfiguring Layer 4 source and destination port number masksA

Page 14 - Points to remember

Page 5 | AlliedWare™ OS How To Note: Hardware FiltersCreating dedicated hardware filtersz When packets arrive at a customer port of a nested VLAN, the

Page 15 - Example 3: ports 333-777

Page 6 | AlliedWare™ OS How To Note: Hardware FiltersCreating dedicated hardware filtersThe logic of the operation of the hardware filtersThe operatio

Page 16

Page 7 | AlliedWare™ OS How To Note: Hardware FiltersCombining hardware filters and QoSCombining hardware filters and QoSThe switch compares the packe

Page 17

Page 8 | AlliedWare™ OS How To Note: Hardware FiltersHow many filters can you create?Extra rules used when combining QoS and hardware filtersIn fact,

Page 18 - C613-16058-00 REV C

Page 9 | AlliedWare™ OS How To Note: Hardware FiltersHow many filters can you create?The following figure shows the copies of these rules.When a QoS p

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