Billing; Service Orders; User Interface Characteristics; Figure 10 Map Display Level Hierarchy - Nortel DMS-100 User Manual

Nortel ethernet interface unit user guide
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42 Chapter 1: Introduction to the EIU
Applications running on the EIUs must have sparing defined at the application
level.

Billing

EIUs do not directly affect billing functions.

Service orders

The EIU does not affect service order functions.

User interface characteristics

The EIU uses the existing peripheral user interface (UI) based on the DMS
MAPCI. The MAPCI includes additions to the PM level of the MAP display
to include the new hardware components. Figure 10 shows the hierarchical
relationship for the MAP levels used for the components.

Figure 10 MAP display level hierarchy

297-8991-910 Standard 03.01 August 1999
— the EIU state
During normal operation, the default EIU routes all messages to the CM.
If there is a problem with the default EIU or its links, the following occurs:
— the default EIU advertises to the network that it is no longer available
(or in the event of a LAN-side link failure, the neighboring routers
cannot reach the default EIU)
— another provisioned EIU advertises that it is the router (net hop) to the
SuperNode-side subnet and the CM
During normal operations, if there is a problem with the non-default EIU
or its links, there is no impact on service unless the default EIU
experiences problems, in which case the SuperNode subnet is isolated
from the LAN-side subnet until one of more EIUs are brought back into
service.
Existing
peripheral
modules
PM level
EIU level
EXND level
(LAN devices)

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