ECS4110-28T_Management Guide

C HAPTER 9 | Congestion Control
Storm Control
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◆ Traffic storms can be controlled at the hardware level using Storm
Control or at the software level using Automatic Traffic Control which
triggers various control responses. However, only one of these control
types can be applied to a port. Enabling hardware-level storm control
on a port will disable automatic storm control on that port.
◆ Rate limits set by the storm control function are also used by automatic
storm control when the control response is set to rate control on the
Auto Traffic Control (Configure Interface) page.
◆ Using both rate limiting and storm control on the same interface may
lead to unexpected results. It is therefore not advisable to use both of
these commands on the same interface.
PARAMETERS
These parameters are displayed:
◆ Interface – Displays a list of ports or trunks.
◆ Type – Indicates interface type. (100BASE-FX, 1000BASE-T,
1000BASE SFP)
◆ Unknown Unicast – Specifies storm control for unknown unicast
traffic.
◆ Multicast – Specifies storm control for multicast traffic.
◆ Broadcast – Specifies storm control for broadcast traffic.
◆ Status – Enables or disables storm control. (Default: Enabled for
broadcast storm control, disabled for multicast and unknown unicast
storm control)
◆ Rate – Threshold level as a rate; i.e., kilobits per second.
(Range: 500-1488100 pps)
N OTE : Only one rate is supported for all traffic types on an interface.
WEB INTERFACE
To configure broadcast storm control:
1. Click Traffic, Storm Control.
2. Set the interface type to Port or Trunk.
3. Set the Status field to enable or disable storm control.
4. Set the required threshold beyond which the switch will start dropping
packets.
5. Click Apply.