Specifications

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13-5
Cisco Nexus 3000 Series NX-OS Unicast Routing Configuration Guide, Release 5.0(3)U2(2)
OL-25782-02
Chapter 13 Configuring Route Policy Manager
Licensing Requirements for Route Policy Manager
Route Redistribution and Route Maps
You can use route maps to control the redistribution of routes between routing domains. Route maps
match on the attributes of the routes to redistribute only those routes that pass the match criteria. The
route map can also modify the route attributes during this redistribution using the set changes.
The router matches redistributed routes against each route map entry. If there are multiple match
statements, the route must pass all of the match criteria. If a route passes the match criteria defined in a
route map entry, the actions defined in the entry are executed. If the route does not match the criteria,
the router compares the route against subsequent route map entries. Route processing continues until a
match is made or the route is processed by all entries in the route map with no match. If the router
processes the route against all entries in a route map with no match, the router accepts the route (inbound
route maps) or forwards the route (outbound route maps).
Licensing Requirements for Route Policy Manager
The following table shows the licensing requirements for this feature:
Guidelines and Limitations
Route Policy Manager has the following configuration guidelines and limitations:
• An empty route map denies all the routes.
• An empty prefix list permits all the routes.
• Without any match statement in a route-map entry, the permission (permit or deny) of the route-map
entry decides the result for all the routes or packets.
• If referred policies (for example, prefix lists) within a match statement of a route-map entry return
either a no-match or a deny-match, Cisco NX-OS fails the match statement and processes the next
route-map entry.
• When you change a route map, Cisco NX-OS hold all the changes until you exit from the route- map
configuration submode. Cisco NX-OS then sends all the changes to the protocol clients to take
effect.
• Because you can use a route map before you define it, verify that all your route maps exist when you
finish a configuration change.
• You can view the route-map usage for redistribution and filtering. Each individual routing protocol
provides a way to display these statistics.
Default Settings
Table 13-1 lists the default settings for Route Policy Manager.
Product License Requirement
Cisco NX-OS Route Policy Manager requires no license. Any feature not included in a license package is bundled with
the Cisco NX-OS system images and is provided at no extra charge to you. For a complete explanation of
the Cisco NX-OS licensing scheme, see the Cisco NX-OS Licensing Guide.