Rate Limiting ICMPv4 and ICMPv6 Traffic
To limit the rate at which ICMPv4 or ICMPv6 messages can be generated by the Routing Engine and sent to the Routing Engine, include the appropriate rate limiting statement at the [edit system internet-options] hierarchy level:
icmpv4-rate-limit bucket-size bucket-size packet-rate packet-rate
icmpv6-rate-limit bucket-size bucket-size packet-rate packet-rate
The bucket size is the number of seconds in the rate-limiting bucket. The packet rate is the rate-limiting packets earned per second. Specify a bucket-size from 0 through 4294967295 seconds. The default value is 5 seconds. Specify a packet-rate from 0 through 4,294,967,295. The default value is 1000.