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Configuring Broadcast Suppression
Configuring Broadcast Suppression
Purpose
To review and set the broadcast suppression threshold for one or more ports. This feature limits
the number of received broadcast frames the switch will accept per port. Broadcast suppression
thresholds apply only to broadcast traffic—multicast traffic is not affected. By default, a broadcast
suppression threshold of 14881 packets per second (pps) will be used, regardless of actual port
speed. Broadcast suppression protects against broadcast storms and ARP sweeps.
Commands
For information about...
show port broadcast
set port broadcast
clear port broadcast
show port broadcast
Use this command to display port broadcast suppression thresholds.
Syntax
show port broadcast [port-string]
Parameters
port‐string
Defaults
If port‐string is not specified, broadcast status of all ports will be displayed.
Mode
Switch command, read‐only.
Example
This example shows how to display the broadcast suppression thresholds for ports 1 through 4:
C2(su)->show port broadcast ge.1.1-4
Port
----------------------------------------
ge.1.1
ge.1.2
ge.1.3
ge.1.4
7-30 Port Configuration
(Optional) Select the ports for which to show broadcast suppression
thresholds. For a detailed description of possible port‐string values, refer
to "Port String Syntax Used in the CLI" on page 7‐2.
Total BC
Threshold
Packets
(pkts/s)
0
50
0
50
0
40
0
14881
Refer to page...
7-30
7-31
7-31
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