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Enter the
configure terminal command to access global configuration mode.
device# configure terminal
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Enter the
router isis command to enter IS-IS router configuration mode and enable IS-IS on the device.
device(config)# router isis
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Enter the
set-overload-bit command with the
on-startup and
wait-for-bgp parameters, specifying a value, to configure the device to set the overload bit upon system startup. The overload bit remains set until BGP has converged. 86,400 seconds is the maximum time that IS-IS waits for BGP convergence to complete.
device(config-isis-router)# set-overload-bit on-startup wait-for-bgp 86400
The following example configures the overload bit on system startup until BGP has converged. The maximum time that the device waits for BGP convergence to complete is 86400 seconds.
device# configure terminal
device(config)# router isis
device(config-isis-router)# set-overload-bit on-startup wait-for-bgp 86400
