The problem you have is more related to design. You don't want to put edge routing, core and aggregation routing into the same two routers. What you need is separation of network functions so that the redistribution between BGP and OSPF is only having to work with interior routes to filter and not the entire global routing table.
Normally the function you're trying to accomplish is best handled on an aggregation router.
Here's a guide to a design methodology called "separation of network functions". You may not need every function in this diagram, but it sounds like you at least need border, core and aggregation.
https://stubarea51.net/2021/11/14/isp-d ... -overview/
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Normally the function you're trying to accomplish is best handled on an aggregation router.
Here's a guide to a design methodology called "separation of network functions". You may not need every function in this diagram, but it sounds like you at least need border, core and aggregation.
https://stubarea51.net/2021/11/14/isp-d ... -overview/
Statistics: Posted by StubArea51 — Sun Apr 06, 2025 6:17 pm