Layer 3 Routing Commands 1465Syntaxip icmp echo-replyno ip icmp echo-replyDefault ConfigurationICMP Echo Reply messages are enabled by default.Command ModeGlobal Configuration mode, Virtual Router Configuration modeUser GuidelinesWhen in Virtual Router Configuration mode, this command operates withinthe context of the virtual router instance. When in Global Configurationmode, the command operates on the global router instance.Virtual Router Configuration mode is only available on theN3000/N3100/N4000 switches.Exampleconsole(config)#ip icmp echo-replyip icmp error-intervalUse the ip icmp error-interval command to limit the rate at which IPv4ICMP error messages are sent. The rate limit is configured as a token bucketwith two configurable parameters: Burst-size and burst-interval.To disable ICMP rate limiting, set burst-interval to zero. Use the no form ofthis command to return burst-interval and burst-size to their default values.Syntaxip icmp error-interval burst-interval [ burst-size ]no ip icmp error-interval• burst-interval — How often the token bucket is initialized (Range: 0–2147483647 milliseconds).• burst-size — The maximum number of messages that can be sent during aburst interval (Range: 1–200).