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Chapter 4: Configuring the High-Level Network

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Figure 4.28 shows the resulting numeric type of class:

Figure 4.28 An example of a numeric type of class

• IP addresses - The following command creates a class containing IP

addresses:

b class my_ntwk { network 10.2.2.0 mask 255.255.255.0 }

Figure 4.29 shows the resulting IP address type of class:

Figure 4.29 An example of an IP address type of class

Note

The size of a class is limited by system resources only.

Predefined lists

In addition to the one of operator, the BIG-IP includes a number of

predefined lists for you to use with this operator. They are:

• AOL Network

• Image Extensions

• Non-routable addresses

These lists are located in the file /etc/default_classes.txt. When the bigpipe

load command is issued, the lists are loaded. Unless modified by a user,

these lists are not saved to the file bigip.conf.

To view classes

To view classes, including the default classes, use the following command.

bigpipe class show

Pool selection based on HTTP header data

A rule can contain a cache statement that selects a pool based on HTTP

header data. A cache statement returns either the origin pool, the hot pool, or

the cache pool. When the cache pool is selected, it is accompanied by the

class my_protos {

}

class my_netwk {

network 10.2.2.0 mask 255.255.255.0

}

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