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Before You Begin: Verifying Hardware Compatibility
Choosing Switch Replacement
...
A switch replacement requires additional configuration questions.
6. Are you doing a switch replacement?
in the format 'yes' or 'no'.(default=no) # yes
Matching the Private Subnet
; ARX‐6000
; Version 5.02.000.12535 (Feb 5 2010 18:16:05) [nbuilds]
; Database version: 502000.21
; Generated running‐config Sun Feb 14 01:44:06 2010
; System UUID 3d17e8ce‐571e‐11dc‐9852‐ef323fbb290f
; ip private vlan internal 1008 metalog 1009 subnet 169.254.17.0 255.255.255.0
;
terminal character‐set unicode‐utf‐8
;================================= vlan ==================================
config
®
ARX
6000 Hardware Installation Guide
differences between replacing a single switch and replacing a member of a
redundant pair is that for a single switch, a re-import is required at the
appropriate point during configuration. Since with a single switch
installation, the configuration is not saved on a backup switch, you have to
manage what you do with these key pieces of configuration data prior to the
switch's failing.
The replacement switch's hardware must match that of the failed switch. At
the end of the switch replacement, you will run the failed switch's
running-config on the replacement switch. The running-config includes slot
numbers for the modules, so the new switch must have its modules in the
same slots as its predecessor. Before you begin the replacement process,
verify that the replacement switch has all of its ASMs and NSMs in the
same positions as the failed switch.
The initial-boot script asks if this is a switch replacement. Answer yes to
invoke the questions that are required to replace the failed switch. For
example,
The next set of questions ask for the switch's private subnet, the private
VLAN for that subnet, and the VLAN for a private metalog subnet. If the
failed switch was in a redundant pair and/or RON network, the private
subnets of the replacement switch should match those of the switch that
®
failed. Each ARX
uses its private subnet for communication with other
®
ARX
es in the same Resilient-Overlay Network (RON) and/or the switch's
redundant peer. All private subnets in the RON and/or pair are carried by the
same VLAN. This private VLAN, and the separate metalog VLAN, must be
®
reserved for ARX
traffic only.
The private-subnet and VLAN information appears at the top of a the failed
show running-config
switch's
running-config file from a failed switch. The private-subnet information is
highlighted in bold text:
output. For example, this is the top of a
Booting the Switch
7 - 7
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