User's Guide Part 1

Chapter 1: Product description Ethernet bridging
Ethernet bridging
This section describes how the PTP 700 processes Ethernet data, and how Ethernet ports are
allocated to the Data Service, Second Data Service, Management Service and Local
Management Service.
Ethernet ports
The PTP 700 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 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 SFP module kit.
Note
The PTP 700 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.
Data and management services
The PTP 700 Series ODU supports four different types of virtual circuits providing data and
management services.
Data Service
This point-to-point transparent service carries customer’s data between one of the Ethernet
ports at the local ODU and one of the Ethernet ports at an associated remote ODU. Every link is
configured with exactly one instance of the Data Service.
The Data Service provides comprehensive Quality of Service classification with up to eight
queues.
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