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Chapter 13 flow-based redirection, 1 introduction to flow-based redirection, Ntroduction to – QTECH QSW-8300 Инструкция по настройке User Manual

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Chapter 13 Flow-based Redirection

13.1 Introduction to Flow-based Redirection

Flow-based redirection function enables the switch to transmit the data frames meeting some

special condition (specified by ACL) to another specified port. The fames meeting a same

special condition are called a class of flow, the ingress port of the data frame is called the

source port of redirection, and the specified egress port is called the destination port of

redirection. Usually there are two kinds of application of flow-based redirection: 1. connecting a

protocol analyzer (for example, Sniffer) or a RMON monitor to the destination port of

redirection, to monitor and manage the network, and diagnose the problems in the network; 2.

Special transmission policy for a special type of data frames.

The switch can only designate a single destination port of redirection for a same class of flow

within a source port of redirection, while it can designate different destination ports of

redirection for different classes of flows within a source port of redirection. The same class of

flow can be applied to different source ports.

13.2 Flow-based Redirection Configuration Task Sequence

Flow-based redirection configuration

Check the current flow-based redirection configuration

1. Flow-based redirection configuration

2. Check the current flow-based redirection configuration

Command

Explanation

Global Mode/Admin Mode

show flow-based-redirect {interface [ethernet

|<IFNAME>]}

Display the information of current

flow-based redirection in the

system/port.

Command

Explanation

Physical Interface Configuration Mode

access-group <aclname> redirect to interface [ethernet

<IFNAME>|<IFNAME>]

no access-group <aclname> redirect

Specify flow-based redirection
for the port; the “no access-

group

<aclname>

redirect

command is used to delete flow-

based redirection.