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Cisco Broadband Cable Command Reference Guide
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Chapter 4 Commands for the Cisco uBR10012 Router
show redundancy
show redundancy
To display the current redundancy status, use the
show redundancy
command in user EXEC or
privileged EXEC mode.
show redundancy
[
clients
|
counters
|
history
|
states
]
Syntax Description
Defaults
No default behavior or values
Command Modes
User EXEC, Privileged EXEC
Command History
Usage Guidelines
The
show redundancy
command shows whether the PRE A slot or PRE B slot contains the active
(primary) Performance Routing Engine (PRE1) module, the status of the standby (secondary) PRE1
module, and the values for the standby PRE1 module’s boot variables and configuration register. In
Cisco IOS Release 12.2(13)BC1 and later releases, it also shows the version of Cisco IOS software that
is running on the standby PRE module.
Note
The
show redundancy
command always shows the correct location of the active PRE1 module. The
other PRE slot will always be marked as
Secondary
, even if a standby PRE1 module is not installed.
Examples
This section contains examples of typical displays for each of the options that are available for the
show
redundancy
command.
Default Displays
The following example shows a typical display from the show redundancy command in Cisco IOS
Release 12.2(15)BC2 and later releases:
PRE A : Secondary
clients
(Optional) Displays the Redundancy Facility (RF) client list.
counters
(Optional) Displays RF operational counters.
history
(Optional) Summarizes RF history.
states
(Optional) Displays RF states for active and standby modules.
Release
Modification
12.2(4)XF1
This command was introduced for the Cisco uBR10012 router.
12.2(11)BC3 The
clients
,
counters
,
history
, and
states
option were added, and the
default display was enhanced to show the version of Cisco IOS software
that is running on the standby PRE module.
12.2(15)BC2
The default display includes additional information about the history of
switchovers, as well as a stack trace from the secondary PRE module’s
ROMMON for when it last crashed, if ever.