
Customizing ATM Interfaces and Service Records
114056 Rev. A 6-3
Enabling or Disabling User Part Autogeneration
After deciding what endstation identifier information you want to use during user
part autogeneration, you can also specify on what service records you want the
autogeneration feature to run.
By default, when you add an SVC service record, the user part autogeneration
feature is enabled. However, you can enable or disable this feature on an
individual service record at any time.
Assigning ATM Addresses
An ATM address is composed of a network prefix and a user part. Bay Networks routers
using the autogeneration feature create the user part of the ATM address. The user part
autogeneration feature combines the MAC address of the ATM interface and a unique
selector byte to create unique addresses (Figure 6-1).
Figure 6-1. ATM Address Components
Site Manager: User Part Autogeneration: page A-21
39000000000000000000000000
0000A20CA98F 00
390000000000000000000000000000A20CA98F00
0000A20CA98F00
ATM Address
Network Prefix
User Part
MAC Address
Selector
Byte
ATM0037A
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