363-206-285
System Introduction
Issue 3 June 2001
1-15
is made possible by interfacing DDM-2000 to any of the numerous
commercially available data edge devices which provide the various
data services interfaces.
— Native Mode LAN Interface. By deploying DDM-2000 with an
adjunct LAN router/ATM switch, Release 11.0 provides a Native
Mode LAN Interface. DDM-2000 offers up to 4 LAN ports per STS-1
of bandwidth. Point-to-point and point-to-multi-point service is
provided. In a later release, this functionality will be integrated
directly in the DDM-2000 shelf.
â– New Features:
— New OC-12 OLIU (24G-U) for OC-3 shelf. The new 24G-U OLIU
provides OC-12 optics directly from the DDM-2000 OC-3 shelf. This
allows the OC-3 shelf to support an OC-12 ring, with the low-speed
inputs and capacity of the OC-3 shelf. The 24G-U OLIU provides
visibility to the full STS-12 bandwidth and allows for selection of any
traffic from any 3 STS-1s on the OC-12 ring for drop at the OC-3
shelf. Remaining traffic can be passed-through on the OC-12 ring.
— Data Services Interface. A new DS3 circuit pack and cross-connect
software provide the DDM-2000 interface to an external LAN router/
ATM switch for providing Native Mode LAN or general data services
via the SONET network.
— Enhanced Software Download. The software upgrade from Release
9.1 to 11.0 and later releases provides a software installation or
copy capability which allows compressed files containing the new
software generic to be downloaded—locally or remotely—to the
DDM-2000 system while the current version is still running. This
enhancement reduces both the time the controller is unavailable
and the time to download the software. When the appropriate
command is initiated, the new generic is installed. Installation of the
new generic can be scheduled, allowing coordination of cutover of
several NEs in the subnetwork.
— CPro-2000, ITM SNC support. Release 11.0 is supported by:
CPro-2000 Release 6.0 and ITM SNC Release 4.0.
— Frequency error monitoring. STS pointer justification performance
monitoring and thresholding provide a means to detect frequency
errors in the synchronization network.
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