- Nortel Ethernet Routing Switch Owner's Manual

Auto Unit Replacement 59
Figure 18
CFG mirror images in the stack after removing the BU (unit 1)
As shown in Figure 18 "CFG mirror images in the stack after removing
the BU (unit 1)" (page 59):
•
Unit 2 becomes the TEMP-BU.
•
The CFG 1 mirror image (residing in unit 2) becomes INACTIVE.
•
A second copy of the INACTIVE CFG 1 mirror image is created in unit 3.
• The TEMP-BU (unit 2) contains all CFG mirror images of the stack’s
NBUs.
•
The CFG 2 mirror image is created in unit 3. Unit 3 becomes the next
TEMP-BU in case the current TEMP-BU is removed.
Restoring a CFG image
Restoring a CFG image is a process that overwrites the CFG image of a
new unit in a stack with an INACTIVE mirror image stored in the stack.
Nortel Ethernet Routing Switch 2500 Series
Overview — System Configuration
NN47215-500 (323162-B) 02.02 Standard
4.1 19 November 2007
Copyright © 2007, Nortel Networks
.