User Manual

Chapter 4 - Operation and Administration Using the CLI NPU Configuration
4Motion 184 System Manual
4.3.6.2 Configuring the Rate Limiting for the NPU
The rate limiting feature enables you to limit the type of traffic destined towards
the NPU. This feature is used to protect the NPU from hostile applications or
Denial of Service (DoS) attacks because packets that exceed an allowed rate are
dropped and not queued to the NPU.
The following are pre-defined applications for which rate limiting is already
configured:
 File Transfer protocol (FTP)
 Telnet
 Trivial File Transfer Protocol (TFTP)
 SSH
 Internet Control Protocol Message (ICMP)
 Simple Network Management Protocol (SNMP)
 R6, R4
 Internet Group Management Protocol (IGMP)
 Extensible Authentication Protocol (EAP)
Command
Syntax
npu# show resource limits
Privilege
Level
1
Display
Format
Resource softlimit hardlimit
CPU <limit> <limit>
Memory <limit> <limit>
Command
Modes
Global configuration mode