Monitoring High Availability
This section shows how to use the show commands to view your high availability configuration and how to clear the high availability switchover history for the router.
High Availability show Commands
You can monitor various aspects of high availability using show commands. These aspects include redundancy modes and status, redundancy clients, historical information about redundancy on the router, and specific redundancy information for line modules and SRPs.
show redundancy
- Use to display the supported redundancy modes and other status relating to high availability. In particular, the output indicates any conditions that are preventing high availability from operating.
- Field descriptions
- high-availability state—State of the high availability mode (disabled, active, or pending)
- current redundancy mode—Redundancy mode currently being used by this router (high-availability or file-system-synchronization)
- last activation type—Last type of activation that occurred on this router (that is, the method by which the SRP last booted [cold-start or warm-start])
- Criteria Required for High Availability to be Active—criteria required for high availability to be active.
NOTE: All criteria must be "yes" for high availability to be active.
- Line Card
- automatic reverting—State of automatic reverting (on or off)
- slot(s)—Slots in which the line modules reside
- hardware role—Function of the line module: primary or spare
- lockout config—Status of redundancy on this line module (protected—line module redundancy is enabled; locked out—line module redundancy is disabled)
- backed up by slot—Slot that contains the line module that is a spare for this primary line module
- sparing for slot—Slot that contains the primary line module for which this line module is a spare
- revert at—Time at which you want line module to revert
- midplane type—Identifier for the type of midplane
- midplane rev—Hardware revision number of the redundancy midplane
- fabric slice redundancy—Status of the fabric slice on the SRP modules or SFMs on the E120 and E320 routers
- slot—Slot in which the fabric slice resides
- slice state—State of the fabric slice (online, not present)
- type—Identifier for the type of hardware (SRP module or SFM)
host1#show redundancy
SRP
---
high-availability state: disabled
current redundancy mode: high-availability
last activation type: cold-switch
Criteria Preventing High Availability from being Active
-------------------------------------------------------
criterion met
----------------------------------------------- ---
Standby SRP is online and capable of mirroring? No
Line Card
---------
automatic reverting is off
backed
up sparing
hardware lockout by for revert
slot role config slot slot at
---- -------- --------- ------ ------- ------
3 --- --- --- --- ---
8 spare --- --- --- ---
12 primary protected --- --- ---
midplane midplane
slots type rev
------ -------- --------
8 - 13 6 0
host1#show redundancy detail
SRP
---
high-availability state: disabled
current redundancy mode: file-system-synchronization
last activation type: cold-start
Criteria Required for High Availability to be Active
----------------------------------------------------
criterion met
---------------------------------------------------- ---
Active SRP hardware supports High Availability? Yes
High Availability mode configured? No
Mirroring Subsystem present? Yes
Mirroring activity levels within limits? Yes
Network Core Dumps disabled? Yes
Running configuration is safe for High Availability? Yes
Standby SRP hardware supports High Availability? Yes
Standby SRP is online and capable of mirroring? Yes
Standby SRP is running the same release? Yes
Line Card
---------
automatic reverting is off
backed
up sparing
hardware lockout by for revert
slot role config slot slot at
---- -------- --------- ------ ------- ------
3 --- --- --- --- ---
8 spare --- --- --- ---
12 primary protected --- --- ---
midplane midplane
slots type rev
------ -------- --------
8 - 13 6 0
show redundancy clients
- Use to display high availability clients and their various levels of high availability support.
- Specify an optional client type that you want to view (all, supported, unsafe, unsupported)
NOTE: Issuing this command without the optional client type results in showing only unsupported high availability clients (the default).
- Field descriptions
- client—High availability client
- mode—Whether the client is supported or unsupported for high availability
- configuration—Safety level of the configuration based on whether or not the client is supported or unsupported and, in the case of those unsupported, whether or not the client has been configured (for example, if an unsupported client is configured on a router with high availability enabled, the configuration would read "unsafe")
host1#show redundancy clients
Unsupported High Availability Clients
-------------------------------------
client configuration
--------------------- -------------
DHCP Proxy Client safe
Global Ipv6 safe
IPsec Transport (ITM) safe
l2tpDialoutGenerator safe
DHCPv6 Local Server safe
Radius Relay Server safe
host1#show redundancy clients all
High Availability Client Information
------------------------------------
client mode configuration
--------------------- ----------- -------------
atm1483DataService supported safe
AA83 supported safe
aaaServer supported safe
atmAal5 supported safe
AAQS supported safe
atm supported safe
Bridged Ethernet supported safe
Transparent Bridging supported safe
dcm supported safe
dhcpExternal supported safe
DHCP Proxy Client unsupported safe
DS1 supported safe
DS3 supported safe
ethernet supported safe
Flow Inspection supported safe
frameRelay supported safe
FT1 supported safe
Global Ipv6 unsupported safe
Global Ip supported safe
HDLC supported safe
IKEP supported safe
ipflowstats supported safe
IpSubscriberManager supported safe
IPTU supported safe
IPVR supported safe
IPsec Transport (ITM) unsupported safe
l2tpDialoutGenerator unsupported safe
l2tp supported safe
LMGR supported safe
DHCPv4 Local Server supported safe
DHCPv6 Local Server unsupported safe
MPLS supported safe
PMGR supported safe
pppoe supported safe
ppp supported safe
qos supported safe
Radius Relay Server unsupported safe
RSVP supported safe
SCM supported safe
slotHelper supported safe
Cisco HDLC supported safe
ServiceManager supported safe
Sonet supported safe
SonetPath supported safe
SonetVT supported safe
IPsec Tunnel (ST) supported safe
show redundancy history
- Use to display information about dates, times, and the number of occurrences for starts and switchovers.
- Use the srp keyword to view SRP module-specific information.
- Use the detail keyword to view additional history information.
- Field descriptions
- system up time—Amount of time elapsed since the last cold boot
- last cold start—Date and time the router experienced the last cold start
- last cold switchover—Date and time the router experienced the last cold switchover
- last warm switchover—Date and time the router experienced the last warm switchover
- cold starts—Total number of cold starts the router has experienced
- switchovers—Number of cold, warm, and consecutive warm switchovers the router has experienced
host1#show redundancy history
system up time: 0 00:08:01
last cold start: 2004-07-26 10:44:25
last cold switchover: 2004-07-25 18:51:56
last warm switchover: 2004-07-25 20:58:57
activation statistics:
cold starts: 92
switchovers:
cold: 21
warm: 147
consecutive warm: 0
host1#show redundancy history detail
system up time: 0 00:08:01
last cold start: 2004-07-26 10:44:25
last cold switchover: 2004-07-25 18:51:56
last warm switchover: 2004-07-25 20:58:57
activation statistics:
cold starts: 92
switchovers:
cold: 21
warm: 147
consecutive warm: 0
system
SRP activation time type slot uptime running release
------------------- ---------- ---- ------ -----------------
2004-09-08 15:10:40 cold-start 00 --- erx_6-0-0b1-8.rel
2004-09-08 14:39:10 cold-start 00 --- erx_6-0-0b1-1.rel
show redundancy line-card
- automatic reverting—State of automatic reverting (on or off)
- slot(s)—Slots in which the line modules reside
- hardware role—Function of the line module: primary or spare
- lockout config—Status of redundancy on this line module (protected—Line module redundancy is enabled; locked out—Line module redundancy is disabled)
- backed up by slot—Slot that contains the line module that is a spare for this primary line module
- sparing for slot—Slot that contains the primary line module for which this line module is a spare
- revert at—Time at which you want line module to revert
- midplane type—Identifier for the type of midplane
- midplane rev—Hardware revision number of the redundancy midplane
host1#show redundancy line-card
automatic reverting is off
backed
up sparing
hardware lockout by for revert
slot role config slot slot at
---- -------- --------- ------ ------- ------
3 --- --- --- --- ---
8 spare --- --- --- ---
12 primary protected --- --- ---
midplane midplane
slots type rev
------ -------- --------
8 - 13 6 0
show redundancy srp
- Use to display SRP-module-specific redundancy information.
- Use the brief keyword to display summary information about SRP redundancy.
- Field descriptions
- high-availability state—State of the high availability mode (disabled, active, or pending)
- current redundancy mode—Redundancy mode currently being used by this router (high-availability or file-system-synchronization)
- last activation type—Last type of activation that occurred on this router (that is, the method by which the SRP last booted [cold start or warm start])
- Criteria Required for High Availability to be Active—Criteria required for high availability to be active.
NOTE: All criteria must be "yes" for high availability to be active.
host1#show redundancy srp
high-availability state: active
current redundancy mode: high-availability
last activation type: warm-switch
host1#show redundancy srp detail
high-availability state: disabled
current redundancy mode: file-system-synchronization
last activation type: cold-start
Criteria Required for High Availability to be Active
----------------------------------------------------
criterion met
---------------------------------------------------- ---
Active SRP hardware supports High Availability? Yes
High Availability mode configured? No
Mirroring Subsystem present? Yes
Mirroring activity levels within limits? Yes
Network Core Dumps disabled? Yes
Running configuration is safe for High Availability? Yes
Standby SRP hardware supports High Availability? Yes
Standby SRP is online and capable of mirroring? Yes
Standby SRP is running the same release? Yes
show redundancy switchover-history
- SRP activation time—Amount of time the SRP module has been active
- type—Type of switchover
- slot—Slot in which the SRP module resides
- system uptime—Amount of time the chassis has been operational
- running release—Release running on the SRP module at the time of the switchover
host1#show redundancy switchover-history
system
SRP activation time type slot uptime running release
------------------- ----------- ---- ---------- -------------------------
2004-07-26 10:44:25 cold-start 07 --- L-07-25-60b1mrg-e.rel
2004-07-25 20:58:57 warm-switch 06 0 00:15:08 L-07-25-60b1mrg-e.rel
2004-07-25 20:53:41 warm-switch 07 0 00:09:51 L-07-25-60b1mrg-e.rel
2004-07-25 20:44:43 cold-start 06 --- L-07-25-60b1mrg-e.rel
2004-07-25 19:32:01 cold-start 06 --- L-07-25-60b1mrg-d.rel
2004-07-25 18:58:01 warm-switch 06 0 00:12:01 L-07-25-60b1mrg-c.rel
2004-07-25 18:51:56 cold-switch 07 0 00:05:56 L-07-25-60b1mrg-c.rel
2004-07-25 18:46:54 cold-start 06 --- L-07-25-60b1mrg-c.rel
2004-07-25 17:44:48 warm-switch 06 0 00:14:32 L-07-25-60b1mrg-b.rel
2004-07-25 17:31:07 cold-start 07 --- L-07-25-60b1mrg-b.rel
2004-07-25 16:05:08 cold-start 07 --- L-07-25-60b1mrg-a.rel
2004-07-24 23:25:09 warm-switch 07 0 16:27:03 L-07-24-60b1mrg-b.rel
2004-07-24 23:18:23 cold-switch 06 0 16:20:17 L-07-24-60b1mrg-b.rel
Clearing the Redundancy History
You can use the clear redundancy history command to clear the high availability switchover history for the router.
clear redundancy history
host1#show redundancy history detail
system up time: 0 00:08:01
last cold start: 2004-07-26 10:44:25
last cold switchover: 2004-07-25 18:51:56
last warm switchover: 2004-07-25 20:58:57
activation statistics:
cold starts: 92
switchovers:
cold: 21
warm: 147
consecutive warm: 0
system
SRP activation time type slot uptime running release
------------------- ----------- ---- ---------- -------------------------
2004-07-26 10:44:25 cold-start 07 --- L-07-25-60b1mrg-e.rel
2004-07-25 20:58:57 warm-switch 06 0 00:15:08 L-07-25-60b1mrg-e.rel
2004-07-25 20:53:41 warm-switch 07 0 00:09:51 L-07-25-60b1mrg-e.rel
2004-07-25 20:44:43 cold-start 06 --- L-07-25-60b1mrg-e.rel
2004-07-25 19:32:01 cold-start 06 --- L-07-25-60b1mrg-d.rel
2004-07-25 18:58:01 warm-switch 06 0 00:12:01 L-07-25-60b1mrg-c.rel
2004-07-25 18:51:56 cold-switch 07 0 00:05:56 L-07-25-60b1mrg-c.rel
host1#clear redundancy history
host1#show redundancy history
system up time: 0 00:08:01
last cold start: 2004-07-26 10:44:25
last cold switchover: 2004-07-25 18:51:56
last warm switchover: 2004-07-25 20:58:57
activation statistics:
cold starts: 92
switchovers:
cold: 21
warm: 147
consecutive warm: 0
system
SRP activation time type slot uptime running release
------------------- ----------- ---- ---------- -------------------------