Policy Based Routing

The PBR (Policy Based Routing) screen displays statistics for packet path redirections. PBR can optionally mark traffic for preferential services (QoS). PBR is applied to incoming routed packets, and a route-map is created containing a set of filters and associated actions. Based on the actions defined in the route-map, packets are forwarded to the next relevant hop. Route-maps are configurable under a global policy called routing-policy, and applied to profiles and managed client devices.

To review PBR statistics:

1. Select the Statistics menu from the Web UI.
2. Expand the RF Domain node.
3. Select a Wireless Controller.
4. Select Policy Based Routing from the left-hand side of the UI.

   The Statistics > Controller > Policy Based Routing screen displays.

   The Policy Based Routing screen displays the following:

   Precedence	Lists the numeric precedence (priority) assigned to each listed PBR configuration. A route-map consists of multiple entries, each carrying a precedence value. An incoming packet is matched against the route-map with the highest precedence (lowest numerical value).
   Primary Next Hop IP	Lists the IP address of the virtual resource that, if available, is used with no additional route considerations.
   Primary Next Hop State	Displays whether the primary hop is being applied to incoming routed packets.
   Secondary Next Hop IP	If the defined primary hop is unavailable, a alternative second resource is used. This column lists the address set for the alternate route in the election process.
   Secondary Next Hop State	Displays whether the secondary hop is being applied to incoming routed packets.
   Default Next Hop IP	If a packet subjected to PBR does not have an explicit route to the destination, the configured default next hop is used. This is either the IP address of the next hop or the outgoing interface. Only one default next hop is available. The difference between the next hop and the default next-hop is in case of former, PBR occurs first, then destination based routing. In case of the latter, the order is reverse.
   Default Next Hop State	Displays whether the default hop is being applied to incoming routed packets.

5. Click Refresh to update the screen's statistics counters to their latest values.