Configuration Guide User guide
1958 FastIron Configuration Guide
53-1002494-02
Fixed rate limiting on outbound port configuration
The above commands configure a fixed rate limiting policy that allows port 0/1/10, a GbE port, to
receive a maximum of 1000 kilobits per second. If the port receives additional bits during a given
one-second interval, the port drops all inbound packets on the port until the next one-second
interval starts.
Syntax: [no] rate-limit input fixed <average-rate>
The <average-rate> parameter specifies the maximum number of kilobits per second (Kbps) the
port can receive. Table 324 lists the minimum and maximum rates.
Fixed rate limiting on outbound port configuration
NOTE
This feature is not supported on FastIron X Series and Brocade FCX Series devices.
Outbound rate limiting allows you to specify the maximum number of kilobits a given port can
transmit.
Brocade devices support the following types of outbound fixed rate limiting on Gbps and 10 Gbps
Ethernet ports.
• Port-based – Limits the rate of outbound traffic on an individual physical port or trunk port, to
a specified rate. Traffic that exceeds the maximum rate is dropped. Only one port-based
outbound rate limiting policy can be applied to a port.
• Port- and priority-based – Limits the rate on an individual 802.1p priority queue on an
individual physical port or trunk port. Traffic that exceeds the rate is dropped. Only one
priority-based rate limiting policy can be specified per priority queue for a port. This means
that a maximum of eight port- and priority-based policies can be configured on a port.
Minimum and maximum outbound rate limits
Table 325 lists the minimum and maximum outbound rate limits on GbE and 10-GbE ports.
Configuration notes for outbound rate limiting
• Outbound rate limiting is supported on:
• GbE ports
• 10-GbE ports
• Trunk por ts
• Outbound rate limiting is not supported on:
• Ports on which LACP is enabled
• Virtual interfaces
• Loopback interfaces
TABLE 325 Rates for outbound rate limiting
Port type Minimum rate Maximum rate Granularity
GbE 65 Kbps 1000000 Kbps 65 Kbps
10-GbE 2500 Kbps 10000000 Kbps 2500 Kbps