BGP Aggregate Tab

•	Network > Virtual Router > BGP > Aggregate

Route aggregation is the act of combining specific routes (those with a longer prefix length) into a single route (with a shorter prefix length) to reduce routing advertisements that the firewall must send and to have fewer routes in the route table.

BGP Aggregate Settings	Configure In	Description
Name	BGP > Aggregate	Enter a name for the aggregation rule.
Prefix		Enter a summary prefix (IP address/prefix length) that will be used to aggregate the longer prefixes.
Enable		Select to enable this aggregation of routes.
Summary		Select to summarize routes.
AS Set		Select to cause the firewall, for this aggregation rule, to include the set of AS numbers (AS set) in the AS path of the aggregate route. The AS set is the unordered list of the origin AS numbers from the individual routes that are aggregated.
Name	BGP > Aggregate > Suppress Filters	Define the attributes that will cause the matched routes to be suppressed. Add and enter a name for a Suppress Filter.
Enable		Select to enable the Suppress Filter.
AS Path Regular Expression		Specify a regular expression for AS_PATH to filter which routes will be aggregated, for example, ^5000 means routes learned from AS 5000.
Community Regular Expression		Specify a regular expression for communities to filter which routes will be aggregated, for example, 500:.* matches communities with 500:x.
Extended Community Regular Expression		Specify a regular expression for extended communities to filter which routes will be aggregated.
MED		Specify the MED that filters which routes will be aggregated.
Route Table		Specify which route table to use for aggregated routes that should be suppressed (not advertised): unicast, multicast, or both.
Address Prefix		Enter the IP address that you want to suppress from advertisement.
Next Hop		Enter the next hop address of the BGP prefix that you want to suppress.
From Peer		Enter the IP address of the peer from which the BGP prefix (that you want to suppress) was received.
Name	BGP > Aggregate > Advertise Filters	Define the attributes for an Advertise Filter that causes the firewall to advertise to peers any route that matches the filter. Click Add and enter a name for the Advertise Filter.
Enable		Select to enable this Advertise Filter.
AS Path Regular Expression		Specify a regular expression for AS_PATH to filter which routes will be advertised.
Community Regular Expression		Specify a regular expression for Community to filter which routes will be advertised.
Extended Community Regular Expression		Specify a regular expression for Extended Community to filter which routes will be advertised.
MED		Specify a MED value to filter which routes will be advertised.
Route Table		Specify which route table to use for an Advertise Filter of aggregate routes: unicast, multicast, or both.
Address Prefix		Enter an IP address that you want BGP to advertise.
Next Hop		Enter the Next Hop address of the IP address you want BGP to advertise.
From Peer		Enter the IP address of the peer from which the prefix was received, that you want BGP to advertise.
	BGP > Aggregate > Aggregate Route Attributes	Define the attributes for the aggregate route.
Local Preference		Local preference in the range 0-4,294,967,295.
MED		Multi Exit Discriminator in the range 0-4,294,967,295.
Weight		Weight in the range 0-65,535.
Next Hop		Next Hop IP address.
Origin		Origin of the route: igp, egp, or incomplete.
AS Path Limit		AS Path Limit in the range 1-255.
AS Path		Select Type: None or Prepend.
Community		Select Type: None, Remove All, Remove Regex, Append, or Overwrite.
Extended Community		Select Type: None, Remove All, Remove Regex, Append, or Overwrite.

Parent topic 

BGP