Route Maps🔗

Route-maps are used to filter or modify routes based on many possible criteria. Route-maps are composed of one or more Route-map Clauses. Each clause uses a filter to select the relevant routes (match criteria). Once selected, parameters of the routes can be modified with Set commands.

Beware of Misconfigurations

It is important that network administrators are deeply familiar with BGP and Route Map concepts before manipulating settings. Misconfiguration can lead to routing loops, traffic disruption, service outages, security vulnerabilities, and performance degradation.

Route Map Composition🔗

Route Maps are composed of:

Route Map Clause(s) – This is a statement or rule within the route map that is composed of permit or deny match conditions, including matches to Lists.
Access Control List(s) – A collection of Conditions or criteria that define specific attributes to match against network traffic. (ACLs are used to match 5 tuple)
Condition(s) – These are individual factors such as IP addresses, destination IP addresses or protocol types.

Route Maps Clauses🔗

Route Map Clauses are composed of permit or deny match conditions, including matches to Lists in Match Fields.

Set Fields define actions to take when the match criteria are met.

To add items to Match Fields or Set Fields you use the Add Field () button.

Creating Route Maps Definitions🔗

From the world view click the Templates () icon.
Click the Route Maps tab.
Click the Add Route Map () button.
Enter the name of the new route-map.
Click the form submission checkmark button ().
Click the Edit () button.
Click the Enable checkbox.
Double-click the input field that says No Route Map Clause.
Select Create New Route Map Clause in the select box.
Enable the checkbox next to the form field.
Push Enter on your keyboard.

Adding Multiple Clauses

To create and enable multiple Route Map Clauses, click the Add Row button.

Create a Route Map Clause🔗

Double-click the Route Map Clauses tile.
Click the Add Route Map Clause () button.
In the window that appears type the name of the Route Map Clause.

Match Conditions in a Route Map Clause🔗

From the world view click the Templates () icon.
Click the Route Maps tab.
Double-click the Route Map Clauses tile.
Make a "Route Map Clauses" selection and double click it.
In the tile that appears create a new Match field by clicking the Add Field button ().

In the window that appears, select a choice from the drop down menu. The options are as follows:

Match Types
AS Path Access List	Local Preference
Community List	Metric
EVPN Route Type	Origin
EVPN Route Type Default	Peer Interface
Extended Community List	Peer IP Address
Interface Number	Peer VLAN
Interface VLAN	Source Protocol
IPv4 Address IP Prefix List	Tag
IPv4 Next Hop IP Prefix List	VNI
	VRF

Access Control Lists🔗

An access control list (ACL) is a collection of conditions to match specific attributes of network traffic. These conditions can include source IP addresses, destination IP addresses, protocol type and other data.

Creating an Access Control List🔗

AS Path Lists🔗

AS Path Lists allow a route map to select routes with a specific AS number in the path using regex.

Creating an AS Path List🔗

Double-clicking the AS Path Access List tile.
Click the Add a New AS Path Access List () button.
Enter a name for the list.
Set the conditions for the list.
Click the Save button () .

Community Lists🔗

Community Lists allow a route map to select routes originating from a specific community.

Creating a Community List🔗

Double-clicking the Community List tile.
Click the Add Community List () button.
Enter a name for the list.
Set the conditions for the list.
Click the Save button.

IP Prefix Lists🔗

IP Prefix Lists allow a route map to select routes matching a specific prefix length.

Creating an IP Prefix List🔗

Double-clicking the AS Path Access List tile.
Click the Add a IP Prefix List () button.
Enter a name for the list.
Set the conditions for the list.
Click the Save button ().