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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Administering ATM-PNC and ATM-CES
5-2Acquiring ATM Addresses
5
DEFINITY Network Administration (DNA) is a software-only system management
tool based on client-server architecture. It gives multiple administrators the ability
to administer a network of DEFINITY switches and INTUITY Voice Mail systems
simultaneously from different machines.
Although the 3 methods of access present different interfaces, the command
syntax is the same. The screens shown in this section are as they look on a
Release 8r platform through a SAT. Your interface and screen page numbers may
differ.
Acquiring ATM Addresses
Equipment that interfaces with an ATM switch must have a unique 40-digit
(20-byte) ATM address (see Figure 3-1). These 40 characters are divided into
sectors as Table 5-1
shows:
In Release 7 or later, the address of the EPN is automatically derived by the local
ATM switch using the address registration procedure defined in the Integrated
Local Management Interface (ILMI ). The ATM switch uses its 13-byte network
address plus the 6-byte ESI, or MAC address, and the 1-byte selector byte of the
corresponding TN2305 or TN2306 board(s) in the EPN to formulate the 20-byte
ATM address(es).
ATM switches can use any of the address formats listed in Table 5-2
.
NOTE:
The beginning AFI and the last 2 sectors (ESI, and Selector) in Table 5-2
are all the same length, making it easier to parse the ATM address,
regardless of the format.
Table 5-1. ATM addressing
Hex digit
position
Length
(hexadecimal) Description
1-26 26 Network prefix that identifies a particular ATM
switch in the network.
27-38 12 End system identifier (ESI) identifies each
end-station connected through an ATM
switch.
1
1. The ESI is usually the IEEE Media Access Control (MAC) address programmed into
the end-station device during its manufacture. The MAC address on the
TN2305/TN2306 is located on the MAC address button on the circuit pack (see
Figure 5-1).
39-40 2 Selector byte is always 0 for DEFINITY ATM