Lucent Technologies Comcode 108678723 manual Acquiring ATM Addresses

DEFINITY ECS Release 8.2 ATM Installation,	Issue 1
Upgrades, and Administration 555-233-124	April 2000

5Administering ATM-PNC and ATM-CES

Acquiring ATM Addresses 5-2

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:

Table 5-1. ATM addressing

Hex digit	Length
position	(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
39-40	2	Selector byte is always 0 for DEFINITY ATM

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).

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.