Alcatel-Lucent 7210 SAS M Configuration Manual page 64

Configuration Commands
By default, generation of ICMP destination unreachables messages is enabled at a maximum rate of
100 per 10 second time interval.
The no form of the command disables the generation of ICMP destination unreachables on the router
interface.
Default
unreachables 100 10 — Maximum of 100 unreachable messages in 10 seconds.
Parameters
number — The maximum number of ICMP unreachable messages to send, expressed as a decimal
seconds — The time frame, in seconds, used to limit the number of ICMP unreachable messages that
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integer. The seconds parameter must also be specified.
Values
10 — 1000
can be issued, expressed as a decimal integer.
Values
1— 60
7210 SAS M, X Router Configuration Guide