iPECS eMG80/100& eMG800 & UCP & vUCP
Administration and Programming Manual Issue 2.5
78
4.3.2.2 Device IP Address Plan -PGM 103
TDM board is registered with its own slot number. It is registered automatically without any configuration.
To register an IP device:
As IP gateway/board and terminals register to the iPECS, a logical slot number is assigned, indicating the
registration order. Also, based on the type of device (CO/IP gateway/board, Terminal), the system assigns a
logical Sequence Number.
Thus, Sequence Numbers for CO gateway/board, Terminals are independently assigned based on the type of
gateway/board. These Sequence Numbers are employed to provide a relationship between the physical MAC
address and the logical port numbers of the device.
The system may assign a default private IP address to each Sequence Number. If desired, this program may
be used to modify the assigned IP address for each gateway/board and iPECS Phone.
Each local gateway/board and terminal can be assigned for “Direct Send”. With Direct Send enabled, the
system will employ the Ethernet MAC address, layer 2 switchings to eliminate the need for IP traffic overhead,
reducing overall LAN traffic. The system normally employs IP multi-cast protocol to respond to a
gateway/board or terminal registration request.
When the device is separated from the system by a router, the system must use the IP uni-cast protocol. The
“Local Device” assignment establishes this. When disabled (Off), the system will send an IP uni-cast message
to the device in response to a registration request.
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