Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
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If the request has come from a neighboring system and Interworking mode is set to Registered only, the VCS
searches the Local Zone using both protocols, and all other zones using the native protocol only (because it
will interwork the call only if one of the endpoints is locally registered).
searches the Local Zone using both protocols, and all other zones using the native protocol only (because it
will interwork the call only if one of the endpoints is locally registered).
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If Interworking mode is set to On, or the request has come from a locally registered endpoint, the VCS
searches the Local Zone and all external zones using both protocols.
searches the Local Zone and all external zones using both protocols.
About Pre-Search Transforms
The pre-search transform function allows you to modify the alias in an incoming search request. The transformation is
applied by the VCS before any Call Policy or User Policy is applied, and before any searches take place.
applied by the VCS before any Call Policy or User Policy is applied, and before any searches take place.
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It applies to all incoming search requests received from locally registered endpoints, neighbor, traversal client
and traversal server zones, and endpoints on the public internet.
and traversal server zones, and endpoints on the public internet.
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It does not apply to requests received from peers (which are configured identically and therefore will have
already applied the same transform).
already applied the same transform).
Each pre-search transform defines a string against which an alias is compared, and the changes to make to the alias
if it matches that string.
if it matches that string.
After the alias has been transformed, it remains changed and all further call processing is applied to the new alias.
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Pre-search transforms are not applied to GRQ or RRQ messages received from endpoints registering with the
VCS; endpoints will be registered with the aliases as presented in these messages.
VCS; endpoints will be registered with the aliases as presented in these messages.
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All peers in a cluster should be configured identically, including any pre-search transforms. Each VCS treats
search requests from any of its peers as having come from its own Local Zone, and does not re-apply any pre-
search transforms on receipt of the request.
search requests from any of its peers as having come from its own Local Zone, and does not re-apply any pre-
search transforms on receipt of the request.
Pre-search transform process
Up to 100 pre-search transforms can be configured. Each transform must have a unique priority number between 1
and 65534.
and 65534.
Every incoming alias is compared with each transform in order of priority, starting with that closest to 1. If and when a
match is made, the transform is applied to the alias and no further pre-search checks and transformations of the new
alias will take place. The new alias is then used for the remainder of the
match is made, the transform is applied to the alias and no further pre-search checks and transformations of the new
alias will take place. The new alias is then used for the remainder of the
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Further transforms of the alias may take place during the remainder of the search process. This may be as a
result of
result of
case, the pre-search transforms are re-applied to the new alias.
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If you add a new pre-search transform that has the same priority as an existing transform, all transforms with a
lower priority (those with a larger numerical value) will have their priority incremented by one, and the new
transform will be added with the specified priority. However, if there are not enough “slots” left to move all the
priorities down, you will get an error message.
lower priority (those with a larger numerical value) will have their priority incremented by one, and the new
transform will be added with the specified priority. However, if there are not enough “slots” left to move all the
priorities down, you will get an error message.
Configuring Pre-Search Transforms
configured on the VCS. It is used to create, edit, delete, enable and disable transforms.
Aliases are compared against each transform in order of Priority, until a transform is found where the alias matches
the Pattern in the manner specified by the pattern Type. The alias is then transformed according to the Pattern
behavior and Replace string rules before the search takes place (either locally or to external zones).
the Pattern in the manner specified by the pattern Type. The alias is then transformed according to the Pattern
behavior and Replace string rules before the search takes place (either locally or to external zones).
After the alias has been transformed, it remains changed. and all further call processing is applied to the new alias.
, and
messages.
The configurable options are:
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Cisco TelePresence Video Communication Server Administrator Guide