HP Transcend Traffix Manager Manual de usuario descargar pdf (Pagina 143)

Using the dblookup Program 143

network-type lookup tables: for example, a database containing only IP_1

and other_2 lookup-tables is valid.

For specific information about Access or Excel lookup-tables, see below.

Default Values Devices may be assigned default values. If no full match was found for

the current device, dblookup looks for default entries defined with star

(’*’) as the key attribute values, and assigns the new attributes with the

values of the best match (the one with as few stars as possible).

If no match is found for the current device, dblookup does not set any

attribute, but waits for a new device to be looked-up.

Table 19

shows an example of this:

■ lookup_2 is a general lookup table based on 2 attributes: NL Layer

Type and DNS Layer 1. This lookup table sets the value for the Country

attribute.

■ An IP device called ’www.demon.co.uk’ gets the ’U.K.’ Country

attribute;

■ An IP device called ’www.yahoo.com’ gets the ’<unknown>’ Country

attribute;

■ An IPX device gets the ’<?>’ Country attribute.

Access Database The lookup-tables should be either standard Access tables or queries; the

column names must match Traffix Manager attribute names. You can

improve performance by defining indexes on the key columns.

Table 19 lookup_2

lookup_2

NL Type DNS Layer 1 Country

IP Fr France

IP Uk U.K.

IP De Germany

IP * <unknown>

* * <?>

1 2 ... 138 139 140 141 142 143 144 145 146 147 148 ... 185 186

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HP Transcend Traffix Manager Manual de usuario Pagina 143