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14
Congestion Control Commands
The switch can set the maximum upload or download data transfer rate for
any port. It can control traffic storms by setting a maximum threshold for
broadcast traffic or multicast traffic. It can also set bounding thresholds for
broadcast and multicast storms which can be used to automatically trigger
rate limits or to shut down a port.
Rate Limit Commands
Rate limit commands allow 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.
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.
rate-limit
This command defines the rate limit for a specific interface. Use this command
without specifying a rate to enable rate limiting. Use the
no
form to disable
rate limiting.
Syntax
rate-limit
{
input
|
output
} [
rate
]
no rate-limit
{
input
|
output
}
input
– Input rate for specified interface
Table 79: Congestion Control Commands
Command Group
Function
Sets the input and output rate limits for a port.
Sets the traffic storm threshold for each port.
Table 80: Rate Limit Commands - Interface
Command
Function
Mode
Configures the maximum input or output rate for
an interface
IC
