Allied Telesis x900-48 series Function Manual - Page 2

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What information will you find in this document?
This document contains the following:
Introduction .............................................................................................................................................. 1
Creating dedicated hardware filters .................................................................................................... 3
Configuring packet classification ................................................................................................... 3
Creating hardware filters ............................................................................................................... 5
The logic of the operation of the hardware filters ................................................................... 6
The effects of the action parameters .......................................................................................... 6
Combining hardware filters and QoS ................................................................................................. 7
How many filters can you create? ........................................................................................................ 7
1. The filter rules table ................................................................................................................... 7
2. The profile (mask) ....................................................................................................................... 9
How to see the current filter resource usage on the switch .............................................. 12
Appendix A: How to use the layer 4 mask in classifiers .............................................................. 13
Example 1: ports 2000-2003 ....................................................................................................... 14
Points to remember ...................................................................................................................... 14
Example 2: ports 5004-5008 ....................................................................................................... 15
Example 3: ports 333-777 ............................................................................................................ 15
Which products and software versions does this information
apply to?
Products: AT-8948, AT-9900, x900-48, and x900-24 series
Software versions: 2.7.3 and above
Hardware filters are also available on Layer 3 switches running the AlliedWare Plus OS. See
the following How To Note:
How To Configure Hardware Filters on SwitchBlade x908, x900-12XT/S, and x900-24 Series
Switches
This Note is available from
Page 2 | AlliedWare™ OS How To Note: Hardware Filters
Configuring "inner" parameters for nested VLANs ........................................................ 4
Extra rules used when combining QoS and hardware filters ........................................ 8
Are there enough bytes for your set of filters? .............................................................. 10
Some protocols also use filters, so use some of the length ........................................ 11
www.alliedtelesis.com/resources/literature/howto_plus.aspx.
Introduction