# BGP Soft Reconfiguration

**URL:** https://forum.networklessons.com/t/bgp-soft-reconfiguration/1133
**Category:** Lessons Discussion
**Created:** [December 27, 2016, 4:20pm UTC](https://forum.networklessons.com/t/bgp-soft-reconfiguration/1133 "2016-12-27T16:20:13Z")
**Posts on this page:** 1
**Page:** 3

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### Author: ![lagapidis](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/lagapidis/32/4949_2.png) [@lagapidis](https://forum.networklessons.com/u/lagapidis)
#### Post date: [February 24, 2025, 7:38am UTC](https://forum.networklessons.com/t/bgp-soft-reconfiguration/1133/41 "2025-02-24T07:38:13Z")

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Hello Görgen

The Loc-RIB, and the adj-RIB-Out are both constructs within a BGP router that exist whether you enable soft reconfiguration or not. You can issue the `show ip bgp` command alone, or with the `advertised-routes` keyword and see these constructs at any time.

The adj-RIB-In however does not exist if you have not enabled soft reconfiguration. You can attempt to see this construct with the `received-routes` keyword:

```auto
R1#show ip bgp neighbors 192.168.12.2 received-routes   
% Inbound soft reconfiguration not enabled on 192.168.12.2

```

When you enable soft reconfiguration, the router **will allocate memory to create the adj-RIB-In as well**. This is why this feature uses up more resources.

I hope this has been helpful!

Laz

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