Cisco Catalyst 2960 Series User Manual

PurposeCommand 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
PurposeCommand
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

Cisco Catalyst 2960 Series Specifications

General

Layer	Layer 2
Power over Ethernet (PoE)	Available on some models
RAM	128 MB
Flash Memory	32 MB
MAC Address Table Size	8000
Operating Temperature	0°C to 45°C (32 to 113°F)
Ports	24 or 48 x 10/100/1000