Route Maps

In the Route Maps tab, you can configure the following features:

  • Community List—The Community List feature allows administrators to configure a set of community attributes to apply on routes exchanged between HPE Aruba Networking Gateways and their peers. The community attribute allows grouping routes with similar properties and is generally used for tagging routes and modifying BGP Border Gateway Protocol. BGP is a routing protocol for exchanging data and information between different host gateways or autonomous systems on the Internet. routing policies.

  • Prefix List—A prefix list allows routing systems to determine which routes must be accepted when they peer with other networks. Prefix lists contain one or more ordered entries which are processed sequentially.

    Prefix lists can be used as a match criteria for applying route map rules on network subnets Subnet is the logical division of an IP network.. For example, if you want to prevent a route for 10.0.0.0/24 from being redistributed, you can define a rule to match the prefix and add it a as match criterion in the BGP redistribution route map.

  • Route Maps—Route maps allow you to configure a filtering criteria by defining a set of rules or match statements with a permit or deny condition. A route map includes a series match statements to determine if a route matches the criteria defined in the statement and then apply the permit or deny rule accordingly.

Important Points to Note

The following list includes some of the important points to consider when configuring a route map:

  • A route map includes name, sequence number, permit or deny rule, the match and set statements. The match statements determine the route or the traffic to which the rule must be applied, whereas the set statements allow you configure attributes or adjust metrics for the route that matches the criteria defined in the match statement.
  • The route map rules are applied sequentially; that is, based on the sequence number defined for each entry.
  • The route map can use a prefix list in the match statement to apply the allow or deny rule. For more information on prefix lists, see Configuring a Prefix List.
  • Route maps can be attached to the BGP neighbor profiles for the inbound and outbound routes. You can associate route maps for the inbound and outbound traffic when configuring a BGP neighbor profile. When the route map policy is applied to the inbound or outbound BGP route, and if the traffic matches the specified criteria, the attribute set for the match condition is applied. If you do not have a route map attached to an iBGP neighbor profile, the iBGP neighbor can access all inbound and outbound routes. For more information on BGP neighbor profiles. see Adding BGP Neighbors.