Cisco Catalyst 2960 Series, Configuration Manual

Page: 1594 / 2288

Purpose Command or Action
Configures protocol storm protection for ARP, IGMP, or DHCP. psp { arp | dhcp | igmp } pps value
Step 3
Example:
Switch(config)#
psp dhcp pps 35
For value , specifies the threshold value for the number of packets per
second. If the traffic exceeds this value, protocol storm protection is
enforced. The range is from 5 to 50 packets per second.
(Optional) Enables error-disable detection for protocol storm
protection. If this feature is enabled, the virtual port is error disabled. errdisable detect cause psp
Example:
Switch(config)# errdisable detect cause
Step 4
If this feature is disabled, the port drops excess packets without error
disabling the port.
psp
(Optional) Configures an auto-recovery time (in seconds) for
error-disabled virtual ports. When a virtual port is error-disabled, the errdisable recovery interval time
Example:
Switch
Step 5
switch auto-recovers after this time. The range is from 30 to 86400
seconds.
Returns to privileged EXEC mode. end
Example:
Switch(config)# end
Step 6
Verifies your entries.
show psp config
{
arp
|
dhcp
|
igmp
}
Example:
Switch# show psp config dhcp
Step 7
Monitoring Protocol Storm Protection
Purpose Command
Verify your entries. show psp config { arp | dhcp | igmp }
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
1512
Monitoring Protocol Storm Protection