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HS08
HS08
Visitor III
January 8, 2026
Solved

BGP Best Path

  • January 8, 2026
  • 1 reply
  • 209 views

I have hub connect to the spoke using 3 different lines, and from bwlow pic i want to troubleshoot why path using 10.103.113.6 is not best path. Anyone knoe how to troubleshoot this?

10.4.png

 

FW01 (Internet) # get router info bgp network 10.4.0.0/16
VRF 0 BGP routing table entry for 10.4.0.0/16
Paths: (3 available, best #2, table Default-IP-Routing-Table)
Advertised to non peer-group peers:
10.103.113.2 10.103.113.3 10.103.113.4 10.103.113.5 10.103.113.6 10.204.0.30
Advertised to peer-groups:
advpn_isp1 advpn_isp2
Original VRF 0
Local, (Received from a RR-client)
10.10.111.6 from 10.10.111.6 (107.107.107.107)
Origin IGP metric 0, localpref 100, valid, internal, best
Receive Path ID: 1
Advertised Path ID: 1
Last update: Thu Jan 8 04:59:01 2026

 

Original VRF 0
Local, (Received from a RR-client)
10.10.112.6 from 10.10.112.6 (107.107.107.107)
Origin IGP metric 0, localpref 100, valid, internal, best
Receive Path ID: 1
Advertised Path ID: 2
Last update: Tue Jan 6 09:20:25 2026

 

Original VRF 0
Local, (Received from a RR-client)
10.103.113.6 from 10.103.113.6 (107.107.107.107)
Origin IGP metric 0, localpref 100, valid, internal
Last update: Thu Dec 4 05:10:55 2025

Best answer by mpapisetty

@HS08 ,

The number of paths is dependent on the BGP configuration. You could increase the number of paths to be selected as best with the "additional-path-select" configuration. 

 

config router bgp     Description: Configure BGP.     set additional-path [enable|disable]     set additional-path-select {integer}

CLI reference - https://docs.fortinet.com/document/fortigate/7.6.5/cli-reference/225427711/config-router-bgp

Community article - https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-apply-additional-path-select-and-adv/ta-p/280033

 

1 reply

mpapisetty
Staff
mpapisettyAnswer
Staff
January 8, 2026

@HS08 ,

The number of paths is dependent on the BGP configuration. You could increase the number of paths to be selected as best with the "additional-path-select" configuration. 

 

config router bgp     Description: Configure BGP.     set additional-path [enable|disable]     set additional-path-select {integer}

CLI reference - https://docs.fortinet.com/document/fortigate/7.6.5/cli-reference/225427711/config-router-bgp

Community article - https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-apply-additional-path-select-and-adv/ta-p/280033

 

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