Cabletron Systems 9A600, Configuration Manual

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Chapter 2: Basic System Configuration
2-30 9A656-04 and 9A600 Configuration Guide
2.15.1 PNNI Configuration screen fields
The following section explains each of the PNNI Configuration screen fields:
PNNI Mode
This field toggles between AUTO USING MAC, AUTO USING BOARD #, and MANUAL,
with a default setting of AUTO USING MAC. The three available options are defined as
follows:
• AUTO USING MAC - In this mode, the PNNI Level field is defaulted to 72. This mode
allows the user to modify up to 9 bytes (72 bits) of the NSAP prefix. The next 4 bytes are
automatically set to the last 4 bytes of each 9A656-04 base MAC Address, followed by the
entire 6 byte base MAC address of the module, and 1 selector byte. Refer to
Figure 2-16 .
Figure 2-16 AUTO USING MAC Address Example
This mode is useful for plug and play operation of the SmartSwitch 9500 when it is in an
environment with one or more SmartSwitch 9500 chassis. Each 9A656-04 has a unique
Node ID, but has a PNNI Level configured (72) that will allow it to peer with all other
9A656-04s in the chassis, and any other SmartSwitch 9500s to which it is connected via
front panel interfaces.
• AUTO USING BOARD # - In this mode, the PNNI Level field is defaulted to 80. The user
is allowed to modify up to 100 bits of the NSAP Prefix. The next 4 bits (the last 4 bits of
the 13th byte) are automatically set to the slot number in which the module resides in the
SmartSwitch 9500 chassis, followed by the 6 byte base MAC address of the module, and 1
selector byte. Refer to
Figure 2-17 .
47-000000-000000-0000-1D123456-00001D123456-00
Modifable 72 Bits of NSAP Prefix
End System
Identifier (ESI)
Non-Modifiable Least
Significant 4 Bytes of
Base Mac
Address/ESI Selector Byte