Chapter 3 Policy Routing Configuration; Overview; Configuring Policy Routing - H3C S7500 Series Operation Manual

Operation Manual – NAT, Netstream, Policy Routing
H3C S7500 Series Ethernet Switches

Chapter 3 Policy Routing Configuration

Overview

Configuring Policy Routing

Displaying Policy Routing Configuration
Policy Routing Configuration Example
Note:
Currently, the LS81VSNP boards installed in S7500 series switches support the policy
routing feature. In this manual, the LS81VSNP board is called LPU.
3.1 Overview
Comparing with the normal routing mechanism which determines the next hop of a
packet by its destination IP address, policy routing provides a more flexible way to
achieve the same purpose. You can perform policy routing configuration so that the
device can use not only destination IP address, but also other information carried in
packets, such as source IP address, source/destination port number, and even protocol
type, to determine the next hops of packets.
On S7500 series switches, policy routing is achieved by redirecting packets. You can
use the traffic-redirect commands to redirect the packets that match particular ACLs
to specified VLAN interfaces or IP addresses.
3.2 Configuring Policy Routing
Follow these steps to configure policy routing:
Define an ACL
Define an ACL rule
Configure inbound packet redirection
Configure outbound packet redirection
For the configuration of ACL, refer to the ACL module in this manual.
Follow these steps to configure packet redirection:
To do...
3-1
Chapter 3 Policy Routing Configuration
Use the command...
acl
rule
traffic-redirect inbound ip-group
traffic-redirect outbound ip-group