ZyXEL Communications XS3800-28, User Manual, Page: 516 / 789

Chapter 68 Policy Routing
XS3800-28 User’s Guide
516
C
HAPTER
68
Policy Routing
This chapter shows you how to configure policy routing rules.
68.1 Policy Route Overview
Traditionally, routing is based on the destination address only and the Switch takes the shortest path to
forward a packet. Policy routing provides a mechanism to override the default routing behavior and
alter the packet forwarding based on the policy defined by the network administrator. Policy-based
routing is applied to incoming packets prior to the normal routing.
Individual routing policies are used as part of the overall policy routing process. A routing policy defines
the action to take when a packet meets the criteria in a specified classifier. The action is taken only
when all the criteria are met.
68.1.1 Benefits
• Source-Based Routing – Network administrators can use policy-based routing to direct traffic from
different users through different connections.
• Cost Savings – Policy routing allows organizations to distribute interactive traffic on high-bandwidth,
high-cost paths while using low-cost paths for batch traffic.
• Load Sharing – Network administrators can use policy routing to distribute traffic among multiple
paths.
68.2 Configuring Policy Routing Profile
Click NETWORKING > Policy Routing > Policy Route Profile in the navigation panel to display the screen
as shown. Use this screen to view and configure policy routing profiles, which can consist of multiple
policy routing rules.
Figure 409 NETWORKING > Policy Routing > Policy Route Profile