Lucent Technologies DDM-2000 OC-12 User Manual

363-206-295
Maintenance Description
9-6 Issue 1 December 1997
Multi-Vendor OI 9
To support multi-vendor OI, DDM-2000 OC-12 R7.0 and OC-3 R13.0 support
Target ID Address Resolution Protocol (TARP) instead of Lucent Directory Service
(LDS). DDM-2000 FiberReach R3.0 and FT-2000 OC-48 R8.0 also support TARP,
thus Lucent 2000 Product Family OI compatibility is still supported but not OI
compatibility with previous releases of DDM-2000 and FT-2000. Both LDS and
TARP are directory services that provide NSAP-TID translations. LDS supports
additional Lucent-only features, but TARP is the established multi-vendor standard
for SONET NEs that support TL1 OS interfaces. DDM-2000 supports the TARP
Data Cache (TDC) function to reduce the frequency of TARP propagation
throughout the subnetwork and to improve performance. No DSNE is required for
TARP.
DDM-2000 OC-12 R7.0 has been developed to be compatible with any other-
vendor NEs that also support TARP, OSI, IAO LAN, and TL1/X.25 as specified in
Bellcore GR-253. In addition, DDM-2000’s TARP Manual Adjacency feature
enables DDM-2000 to operate in networks that include CMISE-based NEs which
may not support TARP propagation. DDM-2000 OC-12 R7.0 supports user
provisioning of several OSI parameters to allow users to adjust their operations
subnetwork, if necessary. For example, to support subnetwork partitioning of large
subnetworks, DDM-2000 supports user provisioning of NSAP area addresses and
level 2 Intermediate System (IS) functionality.
DDM-2000 OC-12 R7.0’s compatibility with Tellabs TITAN
*
5500 DCS R5.0,
including TL1/X.25 OS access with TITAN 5500 DCS serving as the TL1-GNE for
DDM-2000 TL1-RNEs, has been confirmed through cooperative joint testing
between Lucent and Tellabs. DDM-2000’s compatibility with some other-vendor
NEs has also been tested by independent third-parties such as Bellcore on behalf
of the SONET Interoperability Forum (SIF).
Because DDM-2000 OC-12 R7.0 is intended to facilitate OS-based centralized
operations, and because TL1/X.25 OS access is the key standardized multi-
vendor OI application, the following Remote NE Status features are not
supported:
■ Remote office alarms
■ Remote CIT alarm reports
■ Remote user panel indications
■ TBOS
■ Parallel telemetry
* TITAN is a trademark of Tellabs, Inc.

Lucent Technologies DDM-2000 OC-12 Specifications

General

Brand	Lucent Technologies
Model	DDM-2000 OC-12
Category	Multiplexer
Language	English