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Configuring Shelf-Controller Redundancy (APX 8000)
Configuring the APX 8000 for shelf-controller redundancy
APX 8000/MAX TNT/DSLTNT Physical Interface Configuration Guide Preliminary May 9, 2000 2-7
admin> read redundancy
REDUNDANCY read
admin> list
[in REDUNDANCY]
context = [ { } { } ]
primary-preference = no-preference
The following example shows how you can configure the Primary-Preference parameter to
indicate a preference for the controller in the right shelf-controller slot to be elected primary:
admin> read redundancy
REDUNDANCY read
admin> set primary-preference = right-controller-preferred
admin> write
REDUNDANCY written
Note: Primary-Preference settings remain in effect after a reboot. For example, if the left
controller is configured with a particular setting, after a reboot the left controller still retains
that setting.
The Redundancy-Stats profile contains system-maintained statistical information about each
controller. The statistical information for each controller is located in Context-Stats[1] or
Context-Stats[2].
The following example shows how you can view the contents of the Redundancy-Stats profile:
admin> read redundancy-stats
REDUNDANCY-STATS read
admin> list
[in REDUNDANCY-STATS]
context-stats = [ { monitoring secondary defer-to-running-primary
no-function+
admin> list context 1
[in REDUNDANCY-STATS:context-stats[1]]
state = monitoring
function = secondary
select-reason = defer-to-running-primary
prior-function = no-function
last-reboot = crash
fan = { 317834728 }
admin> list context 2
[in REDUNDANCY-STATS:context-stats[2]]
state = monitoring
function = primary
select-reason = communication-loss
prior-function = no-function
last-reboot = crash
fan = { 317838764 }
The Redundancy and Redundancy-Stats profiles are visible through SNMP.
Refer to the APX 8000/MAX TNT/DSLTNT Reference for additional information about the
Redundancy and Redundancy-Stats profiles.