How To Use Of Global GT And Site Specific GT Addresses (Doc ID 1497114.1)

Last updated on DECEMBER 04, 2019

Applies to:

Goal

How to use of global GT and site specific GT addresses?

The OCSB deployment is deployed in a geographical redundant solution. In order to route traffic to SDE SCCP Global Title is used. In order to route new CAP dialogues to SDE a Global Title is used, which is accepted and load shared over both sites are used. This is called a Virtual GT. The each site has it owns GT, which is required to be used for the subsequent signaling, in order to secure that the following CAP messages are received by the same site as the initial CAP message. This is called a site specific GT. In some cases it is wanted that also the Site specific GT can be used for initial CAP messages. It was detected during a traffic rerouting test that it was not possible to use the site specific GT to receive new TCAP messages (e.g. TCAP Begin). Following log was extracted for traffic, which was routed to a site specific GT.:

Solution

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