Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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aggregate-address

To minimize the number of entries in the routing table, summarize a range of prefixes.

Syntax

aggregate-address ip-address mask [advertise-map map-name] [as-set] [attribute-map map-name] [summary-only] [suppress-map map-name]

Parameters

ip-address mask	Enter the IP address and mask of the route to be the aggregate address. Enter the IP address in dotted decimal format (A.B.C.D) and mask in /prefix format (/x).
advertise-map map-name	(OPTIONAL) Enter the keywords `advertise-map` then the name of a configured route map to set filters for advertising an aggregate route.
as-set	(OPTIONAL) Enter the keyword `as-set` to generate path attribute information and include it in the aggregate. AS_SET includes AS_PATH and community information from the routes included in the aggregated route.
attribute-map map-name	(OPTIONAL) Enter the keywords `attribute-map` then the name of a configured route map to modify attributes of the aggregate, excluding AS_PATH and NEXT_HOP attributes.
summary-only	(OPTIONAL) Enter the keyword `summary-only` to advertise only the aggregate address. Specific routes are not advertised.
suppress-map map-name	(OPTIONAL) Enter the keywords `suppress-map` then the name of a configured route map to identify which more-specific routes in the aggregate are suppressed.

Defaults

Not configured.

Command Modes

ROUTER BGP ADDRESS FAMILY
ROUTER BGP ADDRESS FAMILY IPv6

Supported Modes

Full–Switch

Command History

Version	Description
9.9(0.0)	Introduced on the FN IOM.
9.2(0.0)	Introduced on the MXL 10/40GbE Switch IO Module.

Usage Information

At least one of the routes included in the aggregate address must be in the BGP routing table for the configured aggregate to become active.

If routes within the aggregate are constantly changing, do not add the as-set parameter to the aggregate as the aggregate flaps to keep track of the changes in the AS_PATH.

In route maps used in the suppress-map parameter, routes meeting the deny clause are not suppress; in other words, they are allowed. The opposite is also true: routes meeting the permit clause are suppressed.

If the route is injected via the network command, that route still appears in the routing table if the summary-only parameter is configured in the aggregate-address command.

The summary-only parameter suppresses all advertisements. If you want to suppress advertisements to only specific neighbors, use the neighbor distribute-list command.

In the show ip bgp command, aggregates contain an ‘a’ in the first column and routes suppressed by the aggregate contain an ‘s’ in the first column.