About bgp routing problems

[cola1998]

Description

hello！
I am currently having this problem when using frr bgp.
bgp establishes neighbor relationships with other switches and receives many routes. (Run command [ vtysh -c "show ip bgp route" ] to view the routes.) The routes are also synchronized to the host. You can run the "route -n" command to find the routes.
However, in our service scenario, many received bgp routes are useless, and a large number of useless routes may cause some faults.
Is there such a configuration that prevents the learned bgp routes from being synchronized to the host? That is, the learned bgp route cannot be found by running the route -n command.

Version

8.2.2

How to reproduce

nothing

Expected behavior

have a configuration that prevents the learned bgp routes from being synchronized to the host

Actual behavior

nothing

Additional context

No response

Checklist

• I have searched the open issues for this bug.
• I have not included sensitive information in this report.

[ton31337]

Without the configuration, topology, and logs we can't help you much.

[cola1998]

Thank you for your answer.
I would like to ask you how to synchronize the learned bgp route to the host side? Maybe there's something I can do to stop this synchronization.