Brocade Communications Systems Brocate Ethernet Access Switch 6910 - Manual (Page 831)

Brocade 6910 Ethernet Access Switch Configuration Guide 781
53-1002581-01
Chapter
37
Congestion Control
In this chapter
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.
Congestion Control includes following options:
• Rate Limiting – Sets the input and output rate limits for a port.
• Storm Control – Sets the traffic storm threshold for each interface.
• Automatic Traffic Control – Sets thresholds for broadcast and multicast storms which can be
used to trigger configured rate limits or to shut down a port.
Rate Limiting
Use the Traffic > Rate Limit page to apply rate limiting to ingress or egress ports. This function
allows the network manager to control the maximum rate for traffic received or transmitted 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. 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.
CLI References
• “Rate Limit Commands” on page 311
Parameters
These parameters are displayed:
• Interface – Displays the switch’s ports or trunks.
• Type – Indicates the port type. (1000Base-T, 1000Base SFP)
• Status – Enables or disables the rate limit. (Default: Disabled)
• Rate – Sets the rate limit level. (Range: 64 - 1,000,000 kbits per second)
Interface
To configure rate limits:
1. Click Traffic, Rate Limit.
2. Enable the Rate Limit Status for the required ports or trunks.