Appendix B - Automatic Switching B-11
Application switching
Application switching
Application switching, diagramed in figure B-4, also is capable of changing
bandwidth used, but the change is determined entirely by the type of application
being requested ignoring load requirements.
Table B-5
Table B-6
Figure B-4
Application switching diagram
In a system configured for application switching, the remote site modem/router
looks for a packet in the data stream coming from the LAN that is configured
using the H.323 stack protocol and contains an H.225 signaling protocol. In the
illustration shown in Figure B-4 the signal is a call initiated at the remote site.
The packet is then examined to determine the port number then, from the allo-
cated port ranges, determines the type of application being sent.
The modem/router sends a switch request to the VMS requesting a carrier for
the application type. Typical applications include:
•Video
•Voice over IP (VoIP)