2-184Operation, administration, and maintenance (OAM) features

Collocated OPTera Metro 3000 NE and dedicated STS at each site

Using a collocated OPTera Metro 3000 NE and dedicated STS at each site provides the following values over a head-end ring node connection:

For TDM traffic, it provides a termination point for electrical services (DS1, DS3, EC1) and allows efficient bandwidth utilization of the OPTera Metro 3500 STS-managed backbone network through VT grooming.

For Ethernet traffic, it allows efficient transport through a Gigabit Ethernet RPR connection to the OPTera Connect DX NE.

It is a modular network design with low initial costs. That is, you can collocate OPTera Metro 3000 NEs according to demand. Each NE can support a mix of TDM and Ethernet traffic or you can dedicate NEs for either TDM or Ethernet traffic.

Figure 2-70 on page 2-185shows a configuration that transports TDM traffic using a collocated OPTera Metro 3500 NE.

OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004

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Nortel Networks NTRN10AN, 3500 manual 184Operation, administration, and maintenance OAM features