2.5

Table Of Contents
Networking Considerations
21
Networking Considerations
For two workgroups to cooperate, some workstations in one workgroup must have access to
services in the other workgroup. If these workgroups are not in the same site, or are
separated by routers or firewalls, you have to establish access to allow these services to work
together.
The main components are an Avid Interplay Engine and two Interplay Transfer Engines. All
these services are TCP/IP based.
The Avid Interplay Engine leverages the standard HTTP service on port 80.
The Interplay Transfer Engines use port numbers that are defined in the services file in
\WINDOWS\SYSTEM32\DRIVERS\ETC\. As installed, these port numbers are as
follows:
- 6532 - the Interplay Transfer Engine listens on this port for requests from other TM
servers (for example, initiating a workgroup transfer).
- 6535 - This is the default port used by the Interplay Transfer Engine for connecting
to playback servers (for example, AirSpeed Multi Stream).
- 6539 - The Interplay Transfer Engine listens on this port for incoming requests from
the Transfer Client.
Interplay Transfer uses ports 6432 and 6535 to communicate with the sending or receiving
device. After the Transfer Engine establishes the connection, the OS on the external device
assigns a port and notifies the Transfer Engine of the new port number. Then the external
device starts listening on that port. Transfer Engine uses the new port number for sending or
receiving data.
Remote Workgroup Connectivity Rules
For minimal remote workgroup connectivity, the following rules apply:
Avid editing clients must be able to access the remote Interplay Transfer Engine server
and Avid Interplay Engine services.
Interplay Transfer Engine servers must be able to access the remote Media Transfer
service. Interplay Transfer Engine servers access only workgroup-local Avid Interplay
Engine services, not remote ones.
The Avid Interplay Engine must be able to access the remote Interplay Transfer Engine
service.