Cisco Cisco Expressway Maintenance Manual
Field
Description
Usage tips
Pattern string The pattern against which the alias is compared. Applies only if the Mode is Alias Pattern
Match.
The Expressway has a set of predefined
to match against certain configuration
elements.
elements.
Pattern
behavior
behavior
Determines whether the matched part of the
alias is modified before being sent to the target
zone or policy service
alias is modified before being sent to the target
zone or policy service
Leave: the alias is not modified.
Strip: the matching prefix or suffix is removed
from the alias.
from the alias.
Replace: the matching part of the alias is
substituted with the text in the Replace string.
substituted with the text in the Replace string.
Applies only if the Mode is Alias Pattern
Match.
Match.
Replace
string
string
The string to substitute for the part of the alias
that matches the pattern.
that matches the pattern.
Only applies if the Pattern behavior is
Replace.
Replace.
You can use regular expressions.
On
successful
match
successful
match
Controls the ongoing search behavior if the
alias matches the search rule.
alias matches the search rule.
Continue: continue applying the remaining
search rules (in priority order) until the endpoint
identified by the alias is found.
search rules (in priority order) until the endpoint
identified by the alias is found.
Stop: do not apply any more search rules, even
if the endpoint identified by the alias is not
found in the target zone.
if the endpoint identified by the alias is not
found in the target zone.
If Stop is selected, any rules with the same
priority level as this rule are still applied.
priority level as this rule are still applied.
Target
The zone or policy service to query if the alias
matches the search rule.
matches the search rule.
You can configure external
to
use as a target of search rules. This could be
used, for example, to call out to an external
service or application, such as a TelePresence
Conductor. The service will return some CPL
which could, for example, specify a new
destination alias which would start the search
process over again.
used, for example, to call out to an external
service or application, such as a TelePresence
Conductor. The service will return some CPL
which could, for example, specify a new
destination alias which would start the search
process over again.
State
Indicates if the search rule is enabled or not.
Use this setting to test configuration changes,
or to temporarily disable certain rules. Any
disabled rules still appear in the rules list but
are ignored.
or to temporarily disable certain rules. Any
disabled rules still appear in the rules list but
are ignored.
Click on the rule you want to configure (or click New to create a new rule, or click Delete to remove a rule).
Useful tools to assist in configuring search rules
n
You can test whether the Expressway can find an endpoint identified by a given alias, without actually
placing a call to that endpoint, by using the
placing a call to that endpoint, by using the
Maintenance > Tools > Locate
).
n
You can test whether a pattern matches a particular alias and is transformed in the expected way by using
the
the
tool (
Maintenance > Tools > Check pattern
).
Cisco Expressway Administrator Guide (X8.5.2)
Page 153 of 403
Dial plan and call processing
About transforms and search rules