A route-map is a construct used in Cisco network devices that allows you to define a set of sequential rules or statements, each with a permit or deny condition for the purpose of matching, filtering, modifying, and acting upon traffic of prefixes.
Route-maps can be applied to many router operations such as route redistribution, prefix filtering, policy based routing and others.
Route-maps match traffic or prefixes by referencing access lists, prefix lists, distribution lists, specific IP addresses, or a myriad of other characteristics. This traffic can then be acted upon in a multitude of ways.
Route-maps are very powerful constructs allowing you to employ many different types of filtering and manipulation of traffic and shared prefixes between network devices.
Links to this page:
- BGP - AS_Path filtering use cases
- BGP - ECMP for specific prefixes
- BGP - route maps and using the continue clause
- BGP - using peer-groups with multiple outbound policies
- BGP Attributes - route map direction
- BGP and route tagging
- BGP applying route maps to prefixes
- BGP traffic engineering
- Cisco Quantum Flow Processor
- Distribute-lists - using route maps to set attributes
- IS-IS - route filtering
- Multicast - route-map on IOS-XE 16.9.4
- PBR - matching prefix lists
- PBR - route-map and ACL deny statements not supported
- PBR next hop verify availability
- Policy Based Routing acts on incoming traffic
- Route-Map and ACL matching
- Route-map - multiple statements with sequence numbers
- Route-map matching OSPF router ID
- Route-map with multiple parameters in one match statement
- Route-map without a match statement
- Routing - network vs redistribute connected commands
- Routing - route tagging