Ip Interface; Quality Of Service For Bridged Ethernet Traffic; Back To Back Links; Green Ethernet' Switches - Motorola PTP 600 series User Manual

Data network planning

IP interface

Choose an IP address for the IP interface of the ODU management agent. The IP
address must be unique and valid for the connected network segment and VLAN.
Find out the correct subnet mask and gateway IP address for this network segment
and VLAN.
Ensure that the design of the data network permits bi-direction routing of IP
datagrams between network management systems and the ODUs. For example, ensure
that the gateway IP address identifies a router or other gateway that provides access
to the rest of the data network.

Quality of service for bridged Ethernet traffic

Choose an appropriate assignment between the priority code point in bridged Ethernet
frames and PTP 600 traffic classes. This assignment should be consistent with quality
of service policy in the rest of the customer data network.
The user interface provides a convenient shortcut to select the assignment
recommended in IEEE 802.1Q-2005.
NOTE
Ethernet priority information is coded in the Ethernet VLAN tag and
differentiated quality of service is therefore not available in a network based
on untagged Ethernet frames.

Back to back links

Avoid the use of direct cabled connections between two PIDUs. Where two or more
links are deployed in a chain, always use an Ethernet switch or router to interconnect
the links at a relay point.

'Green Ethernet' switches

Do not connect PTP 600 units to Ethernet networking products that control the level of
the transmitted Ethernet signal based on the measured length of the Ethernet link, for
example Green Ethernet products manufactured by D-Link Corporation. The Ethernet
interfaces in these networking products do not work correctly when connected directly
to the PTP 600 PIDU.
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Chapter 2 Planning considerations
phn-0896_012v000
Jul 2010