
Congestion Control
118
Instruction Manual - NXA-ENET8-POE+
Storm Control
Use the Traffic > Storm Control page to configure broadcast, multicast, and unknown unicast storm control thresholds. Traffic
storms may occur when a device on your network is malfunctioning, or if application programs are not well designed or properly
configured. If there is too much traffic on your network, performance can be severely degraded or everything can come to
complete halt.
You can protect your network from traffic storms by setting a threshold for broadcast, multicast or unknown unicast traffic. Any
packets exceeding the specified threshold will then be dropped.
Command Usage
Broadcast Storm Control is enabled by default.
When traffic exceeds the threshold specified for broadcast and multicast or unknown unicast traffic, packets exceeding the
threshold are dropped until the rate falls back down beneath the threshold.
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 features on the same interface.
The following table lists the options on this page:
Perform these steps 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
.
Traffic - Rate Limit Options
Interface
Displays a list of ports or trunks.
Type
Indicates the port type. (1000BASE-T, 10GBASE SFP+, or 1000BASE SFP (used in the ECS4620-
28F/28F-DC or when this transceiver type is used in an SFP+ port).
Unknown Unicast
Specifies storm control for unknown unicast traffic.
Multicast
Specifies storm control for multicast traffic.
Broadcast
Indicates the resolution at which the rate can be configured.
Status
Enables or disables storm control. (Default: Disabled)
Rate
Threshold level in packets per second. (Range: 500-262142 pps; Default: 500 pps)
Resolution
Indicates the resolution at which the rate can be configured.
FIG. 130
Configuring Storm Control