Chapter 27. Policy-Based Routing - Lenovo RackSwitch G8264 Application Manual

Chapter 27. Policy-Based Routing

© Copyright Lenovo 2016
Policy‐based routing (PBR) allows the Lenovo RackSwitch G8264 to forward traffic
based on defined policies rather than entries in the routing table. Such policies are
defined based on the protocol, source IP, or other information present in a packet
header. PBR provides a mechanism for applying the defined policies based on
access control lists (ACLs), and marking packets with a type of service (ToS) to
provide preferential treatment.
PBR can be applied only to the ingress traffic. You can configure a PBR policy using
route maps and apply the route map to an ingress interface. You need to specify the
match (using ACLs) and set (using route maps) criteria in the policy. Based on the
defined rules, an action is triggered. If no match is found, or the policy rule
specifies that the packet be denied, the packet is routed based on an entry in the
routing table.
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