D-Link DGS-6608 — настройка команды aggregate-address для BGP маршрутизации [51/1106]

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DGS-6600 Series Switch m aggregate-address

CLI Reference Guide

aggregate-address

Use this command to configure BGP aggregate entries. Use the no form of the

command to disable this function.

aggregate-address NETWORK-NUMBER/SUBNET-LENGTH [summary-only] [as-set]

no aggregate-address NETWORK-NUMBER/SUBNET-LENGTH [summary-only] [as-set]

Default Disabled.

Command Mode Router configuration.

Usage Guideline Aggregates are used to minimize the size of routing tables. Aggregation

combines the characteristics of several different routes and advertises a single

route. The aggregate-address command creates an aggregate entry in the BGP

routing table if any more-specific BGP routes are available in the specified range.

Using the summary-only parameter advertises the prefix only, suppressing the

more-specific routes to all neighbors.

The as-set parameter creates an aggregate entry advertising the path for this

route, consisting of all elements contained in all paths being summarized. Use

the as-set parameter to reduce the size of the path information by listing the AS

number only once, even if it was included in multiple paths that were aggregated.

The as-set parameter is useful when aggregation of information results in

incomplete path information.

Example This example shows how to propagate network 172.0.0.0 and suppresses the

more specific route 172.10.0.0:

Syntax Description

NETWORK-NUMBER/

SUBNET-LENGTH

Specifies the number of network and the length of network that BGP will

aggregate.

The format of NETWORK-NUMBER/SUBNET-LENGTH can be 10.9.18.2/8.

summary-only (Optional) Filters all more-specific routes from updates.

as-set (Optional) Generates autonomous system set path information.

Switch(config)# router bgp 65534

Switch(config-router)# aggregate-address 172.0.0.0/8 summary-only