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    BGP routing question

    Scheduled Pinned Locked Moved FRR
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    • S
      SBTech
      last edited by

      I have two diffrent fiber providers at two diffrent buildings linked with a 1G wireless bridge. Each PFSense router connected to the fiber has its own /24 to advertise. With iBGP setup between the two can I force FRR to distribute the /24 from each router? I want each subnet to primary use the fiber its directly connected to primarily. Based on my reading weight and as-path prepend are the best way to increase the path cost so more traffic will route thru each subnets primary fiber?

      I appreciate any thoughts on my direction, if I'm way off base here I would love a course correct!

      alt text

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      • M
        michmoor LAYER 8 Rebel Alliance @SBTech
        last edited by michmoor

        @SBTech eBGP to iBGP advertisement is handled automatically so your peer 1 would receive the routes that peer 2 is receiving from its eBGP peer.
        As far as a preference on outgoing flows, typically local-pref handles that. Weight can be used as well but its not communicated to other peers. So if you set weight at location 1, location 2 could still prefer its outgoing link so its best to use local-pref so that can be communicated within your AS.

        Firewall: NetGate,Palo Alto-VM,Juniper SRX
        Routing: Juniper, Arista, Cisco
        Switching: Juniper, Arista, Cisco
        Wireless: Unifi, Aruba IAP
        JNCIP,CCNP Enterprise

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