Nortel 4526FX, Руководство по установке

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60 Installing the Nortel Ethernet Routing Switch
Removing a stack unit
If you remove a unit from the stack (to operate in stand-alone mode), the
following switch configuration settings revert to those configured before the
unit became a member of the stack:
•
IP address
• Web, Telnet, and SNMP passwords
•
SNMP community strings
Stacking configurations
Because stack parameters are associated with the base unit, the physical
stack order depends on the base unit position and whether you configure
the stack cascade up (stack up) or cascade down (stack down). This
designation depends on the stack cabling arrangement. Nortel recommends
that you use Cascade Down configuration. (see
"Cascade down" (page 60) ).
Cascade down
In a cascade down configuration, the base unit is located at the top of the
stack. The system automatically numbers the physical units based on the
designated base unit (Unit 1). The cable connected to the Cascade Down
connector of the base unit terminates in the Cascade Up connector on the
next unit in the stack, which is located below the base unit. This next unit
is designated Unit 2. The stack is wired downward through the units and
the system continues to number in this manner throughout the stack. In this
configuration, the base unit discovers the stack in a cascade down (stack
down) direction. The following illustration demonstrates a typical cascade
down (stack down) configuration.
Nortel Ethernet Routing Switch 4500 Series
Installation Guide
NN47205-300 (322811-B) 03.01 Standard
5.1 19 November 2007
Copyright © 2007, Nortel Networks
.