To enable local policy routing for such packets, Packets that are generated by the device are not normally policy-routed. Once the local device finds a next hop and a usable interface, it routes the packet. They are evaluated in the order shown in the previous table. Set commands can be used with each other. The table below lists the possible numbers and their corresponding Set ip precedence route map configuration command to determine precedence. You can change the precedence setting, using either a number or name (the names came from RFC 791). The device does not honor the precedence bits if queueing is not enabled the packets are sent in FIFO Those headers arrive at another device, the packets are ordered for transmission according to the precedence set, if the queueingįeature is enabled. The precedence bits in the IP header can be set in the device when policy-based routing is enabled.
#Cisco ios xe policy based routing software
By default, the Cisco software leaves this value untouched the header remains with The precedence setting in the IP header determines whether, during times of high traffic, the packets are treated with more Statistics only on tunnel interfaces and not physical interfaces. HenceĬonfigure PBR to interact with CEF or RSVP directly so that mediatrace collects Statistics of incorrect interfaces with policy-based routing (PBR) if the PBRĭoes not interact with CEF or Resource Reservation Protocol (RSVP). To define the route map to be used for policy-based routing, use the route-map map-tag [ sequence-name global configuration command.Ĭommand can be used under route-map configuration mode when you configureĮntries in the policy route cache, use the To deny local traffic so that PBR is not applied to the traffic destined to the SVIs. To connect to switched virtual interfaces (SVIs), either PBR must be disabled or the access list route-map must be modified The route map itself specifies the match criteria and the resulting action if all of the match clauses are met. To enable policy-based routing, you must identify which route map to use for policy-based routing and create the route map. Policy-based routing is a more flexible mechanism for routing packets than destination routing. Possible applications for policy-based routing are to provideĮqual access, protocol-sensitive routing, source-sensitive routing, routing based on interactive versus batch traffic, and To be routed some way other than the obvious shortest path. You might enable policy-based routing if you want certain packets Map determines which packets are routed to which device next. Policy-based routing (PBR) is a process whereby the device puts packets through a route map before routing them. Navigator, go to An account on is not required. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To find information about the features documented in this module,Īnd to see a list of the releases in which each feature is supported, see the feature information table. See Bug Search Tool and the release notes for your platform and software release. For the latest caveats and feature information, Your software release may not support all the features documented in this module.
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