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Migration from DEFINITY Server R to S8700 fiber-PNC
Issue 6 January 2008 121
The full migration from a G3r to an S8700-series Server fiber-PNC system, with traditional or
ATM center stage, involves the following simplified steps:
1. Decide which EPNs are to be IPSI connected, and replace processor complexes with IPSIs.
2. Install servers.
3. Install Ethernet switches.
4. Install UPS units.
5. For IPSI-connected port networks, upgrade each EPN.
6. Connect the duplication links.
7. Connect the servers and the IPSIs to the control LAN.
8. Sequentially bring up the duplicated servers.
Figure 43:
S8700-series Servers (fiber-PNC configuration) shows the completion of Phase 1,
an S8700 fiber-PNC system that supports only traditional endpoints.
Figure 43: S8700-series Servers (fiber-PNC configuration)
Note:
Note: In the traditional PBX system, signaling and bearer traffic for all calls connects
through the TDM buses within Port Networks and the ATM or traditional center
stage