SMC Networks 16 10BASE-T, 100BASE-TX manual Rate-limit, Rate Limit Commands Function Mode

Rate Limit Commands 4

Rate Limit Commands

This function allows the network manager to control the maximum rate for traffic transmitted or received on an interface. Rate limiting is configured on interfaces at the edge of a network to limit traffic into or out of the network. Traffic that falls within the rate limit is transmitted, while packets that exceed the acceptable amount of traffic are dropped.

Rate limiting can be applied to individual ports or trunks. When an interface is configured with this feature, the traffic rate will be monitored by the hardware to verify conformity. Non-conforming traffic is dropped, conforming traffic is forwarded without any changes.

Note: The “rate limit granularity” is multiplied by the “rate limit” (page 4-117)to set the actual rate limit for an interface. Granularity is a global setting that applies to Fast Ethernet or Gigabit Ethernet interfaces.

Table 4-42. Rate Limit Commands

Command	Function	Mode	Page
rate-limit	Configures the maximum input or output rate for a port	IC	4-117
rate-limit granularity	Sets the Fast Ethernet and Gigabit Ethernet granularity	IC	4-118
show rate-limit	Shows the rate limit granularity	PE	4-118

rate-limit

Use this command to define the rate limit level for a specific interface. Use this command without specifying a rate to restore the default rate limit level. Use the no form to restore the default status of disabled.

Syntax

rate-limit {input output} level [rate] no rate-limit {input output}

•input – Input rate

•output – Output rate

•rate – Maximum value. (Range: 1-30)

Default Setting

30

Command Mode

Interface Configuration (Ethernet, Port Channel)

Command Usage

Actual rate limit = Rate limit level * Granularity

4-117