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Policy Routing Configuration
When configuring traffic redirecting, go to these sections for information you are interested in:
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Policy Routing Overview
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Configuring Traffic Redirecting
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Policy Routing Configuration Examples
Policy Routing Overview
Policy routing is to make forwarding decisions based on user-defined policies. Different from the normal
destination-based routing, policy routing can make routing decisions based on the source address and
other criteria in addition to the destination IP address.
The Switch 4800G series implement policy routing through QoS policies. You can configure traffic
classification and traffic redirecting action so that packets matching specific criteria will be forwarded
along the specified path, thus to implement flexible routing.
Policy routing takes precedence over destination-based routing. That is, if a packet meets the match
criteria, policy routing applies; otherwise, destination-based routing applies.
For details about QoS policies, refer to
QoS configuration
in the
QoS Volume
.
Configuring Traffic Redirecting
Before configuring policy routing, you need to:
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Configure a QoS policy, that is, to configure the match criteria and a redirecting action for policy
routing.
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Apply the QoS policy, that is, to define the occasion to which the policy routing applies.
Configuring a QoS Policy
Follow these steps to configure traffic redirecting:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Create a class and enter
class view
traffic classifier
tcl-name
[
operator
{
and
|
or
} ]
—
Configure the match criteria
if-match match-criteria
—
Exit class view
quit
—
