Creating a Cloud Interconnect prefix list

Use Lumen Connect℠ to create prefix lists for your Cloud Interconnect. Use them when updating Border Gateway Protocol (BGP) sessions for the connection to your port. 

Learn more about BGP and routing policies.

To create a prefix list:

  1. Using the left menu, click Services, then Manage Services. 

    Lumen Connect shows a list of all of your services. 
  1. Select Lumen Cloud Interconnect from the all products list. 
  1. Click the   icon in the Actions column next to the Cloud Interconnect you want to update, then click Service Details. 

    Lumen Connect shows the Service Details page. 
  1. Click the Multi-Cloud Gateway Service ID in Related Services.
  1. Click the Policy tab, then click Create Prefix List. 
  1. Type a Prefix List Name that makes it easy to identify in a list.  
  1. Type the IPv4 Prefix with subnet mask in CIDR notation. 
  1. If you want to influence the inbound routing decision for a prefix, select a number from the Local Preference list. Routes with higher values are preferred. 
  1. Set the Match Type to exact to advertise only the specified prefix or longer to advertise prefixes equal to or more specific than the IPv4 prefix. 
  1. To break ties between two routes with the same local preference, AS path, and origin, select 100, 200, or 300 from the Multi-Exit Discriminator (MED) list. 
  1. Select a number between 1 and 3 from the AS Path Prepend list to artificially lengthen the AS route path by repeating the originating AS number. 
  1. Click + Add Another Prefix to add more prefixes to the list. 
  1. Click Create. 

    Lumen Connect creates the prefix list and shows all prefix lists you've created.