User's Manual

Overview 11

Nortel Networks Confidential

The RTP Media Portal uses the following input/output (I/O) cards:

• MCPN765 front card

• TM-PIMC-0101 rear transition module

The transition module contains two, 10/100 BaseT Ethernet

connections for RTP/RTCP/UDP media streams. Each pair of

MCPN765 and TM-PIMC-0101 cards perform the following functions:

• Provides connectivity for RTP/RTCP/UDP media streams to pass

between the Private Network and the Public Network, as well as the

public to public network.

• Relays media packets between end points.

• Performs Network Address and Port Translation (NAPT) functions.

NET ports

• NET1 port = IP address of Public Network

• NET2 port = IP address of Private Network

The RTP Media Portal Host CPU is only connected to the private

network. The RTP Media Portal is an edge component that is

dual-homed on the public network and the Private Network. It is the

Peripheral I/O cards that span these two distinct networks.

User interfaces

The System Management Console is used for fault and configuration

management of the RTP Media Portal. RTP Media Portal management

data is stored on both the Management Module and the Database

Module. The Management Module stores alarm, log, and OM data. The

Database Module stores configuration data.