DELL N3000 User Manual

Configuring Port-Based Traffic Control

This chapter describes how to configure features that provide traffic control 

through filtering the type of traffic or limiting the speed or amount of traffic 

on a per-port basis. The features this section describes includes flow control, 

storm control, protected ports, and Link Local Protocol Filtering (LLPF), 

which is also known as Cisco Protocol Filtering.
The topics covered in this chapter include:

• Port-Based Traffic Control Overview
• Default Port-Based Traffic Control Values
• Configuring Port-Based Traffic Control (Web)
• Configuring Port-Based Traffic Control (CLI)
• Port-Based Traffic Control Configuration Example

Table 24-1 provides a summary of the features this chapter describes.

Flow control

Allows traffic transmission between a switch port and another 

Ethernet device to be paused for a specified period of time when 

congestion occurs. 

Storm control 

Limits the amount of broadcast, unknown unicast, and multicast 

frames accepted and forwarded by the switch.

Protected ports

Prevents traffic from flowing between members of the same 

protected port group.

LLPF

Filters proprietary protocols that should not normally be relayed 

by a bridge.