Lucent Technologies Enterprise Communications Server Comcode 108678723 Manuale Utente Pagina 69

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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Installing a DEFINITY ECS ATM-PNC
3-33ATM Network Duplication
3
With respect to port network connectivity, there is no difference in performance
between ATM network duplication and critical reliability. ATM network duplication
configurations require
A simplex SPE complex in the PPN
Duplicate connectivity over ATM to all PNs
Duplicate ATM interfaces in each EPN
Duplicate Tone-Clock boards in each EPN.
An ATM network duplication configuration can be the result of
A new installation
An upgrade from a standard reliability system
The EPN configuration for ATM network duplication is the same as for an EPN
equipped for ATM critical reliability (Figure 3-9
).
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