Cisco MWR 2941 Installation Manual Page 68

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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Command Reference, Cisco IOS Release 15.1(3)MR
OL-26895-01
Chapter Cisco MWR 2941 Router Command Reference, Release 15.1(3)MR
cns event
Command Modes Global configuration (config)
Command History
Usage Guidelines The CNS event agent must be enabled before any of the other CNS agents are configured because the
CNS event agent provides a transport connection to the CNS event bus for all other CNS agents. The
other CNS agents use the connection to the CNS event bus to send and receive messages. The CNS event
agent does not read or modify the messages.
The failover-time keyword is useful if you have a backup CNS event gateway configured. If the CNS
event agent is trying to connect to the gateway and it discovers that the route to the backup is available
before the route to the primary gateway, the seconds argument specifies how long the CNS event agent
will continue to search for a route to the primary gateway before attempting to link to the backup
gateway.
Unless you are using a bandwidth-constrained link, you should set a keepalive timeout and retry count.
Doing so allows the management network to recover gracefully should a Cisco IE2100 configuration
engine ever fail. Without the keepalive data, such a failure requires manual intervention on every device.
The value of the seconds argument multiplied by the value of the retry-count argument determines the
length of idle time before the CNS event agent will disconnect and attempt to reconnect to the gateway.
We recommend a minimum retry-count of two.
If the optional source keyword is used, the source IP address might be a secondary IP address of a
specific interface to allow a management network to run on top of a production network.
If network connectivity between the Cisco IOS router running the CNS event agent and the gateway is
absent, the event agent goes into an exponential backoff retry mode and gets stuck at the maximum limit
(which may be hours). The reconnect-time keyword allows a configurable upper limit of the maximum
retry timeout.
Release Modification
12.2(2)T This command was introduced.
12.0(18)ST This command was integrated into the Cisco IOS Release 12.0(18)ST.
12.0(22)S This command was integrated into Cisco IOS Release 12.0(22)S.
12.2(2)XB This command was implemented on Cisco IAD2420 series Integrated
Access Devices (IADs).
12.2(8)T The encrypt, init-retry, source, and force-fmt1 keywords were added.
12.3 The reconnect-time keyword was added.
12.3(1) The init-retry keyword was replaced with the failover-time keyword. The
force-fmt1 keyword was removed. The clock-timeout keyword was added.
12.2(25)S This command was integrated into Cisco IOS Release 12.2(25)S.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2(33)SB This command was integrated into Cisco IOS Release 12.2(33)SB.
12.2(33)SXI This command was integrated into Cisco IOS Release 12.2(33)SXI.
12.4(20)MR This command was integrated into Cisco IOS Release 12.4(20)MR.
12.2(33)MRA This command was integrated into Cisco IOS Release 12.2(33)MRA.
15.0(1)MR This command was integrated into Cisco IOS Release 15.0(1)MR.
15.1(3)MR This command was integrated into Cisco IOS Release 15.1(3)MR.
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