Cisco Catalyst 4500 Series Administration Guide

CHAPTER
57-1
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
57
Configuring Storm Control
This chapter describes how to configure port-based traffic control on the Catalyst 4500 series switch.
This chapter consists of these sections:
• About Storm Control, page 57-1
• Enabling Broadcast Storm Control, page 57-3
• Enabling Multicast Storm Control, page 57-4
• Disabling Broadcast Storm Control, page 57-5
• Disabling Multicast Storm Control, page 57-5
• Displaying Storm Control, page 57-6
Note For complete syntax and usage information for the switch commands used in this chapter, see the Cisco
Catalyst 4500 Series Switch Command Reference and related publications at this location:
http://www.cisco.com/en/US/products/hw/switches/ps4324/index.html
If a command is not in the Catalyst 4500 Series Switch Command Reference, you can locate it in the
Cisco IOS library. See the Cisco IOS Command Reference and related publications at this location:
http://www.cisco.com/en/US/products/ps6350/index.html
About Storm Control
This section contains the following subsections:
• Hardware-Based Storm Control Implementation, page 57-2
• Software-Based Storm Control Implementation, page 57-2
Storm control prevents LAN interfaces from being disrupted by a broadcast storm. A broadcast storm
occurs when broadcast packets flood the subnet, creating excessive traffic and degrading network
performance. Errors in the protocol-stack implementation or in the network configuration can cause a
broadcast storm.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E