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Chapter 1: Product description
Ethernet bridging
This section describes how the PTP 650 processes Ethernet data, in both the customer and system
management networks.
Ethernet ports
The PTP 650 Series ODU has three Ethernet ports:
•
Main PSU: The Main PSU port provides a copper Ethernet interface for 100BASE-TX and
1000BASE-T, and accepts power from the AC+DC Enhanced Power Injector or the AC Power
Injector to the ODU using a proprietary power over Ethernet (PoE) method.
•
Aux: The Aux port provides a copper Ethernet interface for 100BASE-TX and 1000BASE-T, and
supplies power from the ODU to external equipment using standards-based power over
Ethernet (PoE) complying with IEEE 802.3at.
•
SFP: The SFP port is a small format pluggable receptacle accepting copper or optical plug-in
modules supplied as part of the
Each of the three Ethernet ports can be allocated for customer data or network management in the
following ways:
•
Disabled: The port is not in use for customer data or network management.
•
Data Only: The port is connected to the customer data network only.
•
Data and In-Band Management: The port is connected to the customer data network and to the
management agent of the local ODU
•
Out-of-Band Local Management: The port is connected directly to the management agent of
the local ODU.
Port allocation is subject to the following rules:
•
One port should be allocated to Data Only or Data and In-Band Management
•
The remaining ports should be allocated to Disabled or Out-of-Band Local Management
Further examples of port allocation are provided in
Note
The PTP 650 provides flexible interconnection of customer data and network
management using several Ethernet ports, but it does not contain a general-purpose
Ethernet switch, and it is not possible to forward traffic between the Ethernet ports of
the same ODU.
SFP module kits
on page 2-27.
Chapter 3: System
Page
1-15
Ethernet bridging
planning.
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