Use BGP Outbound Route Filters (ORF) for IP Prefixes
Using inbound filters on BGP routers to limit table size is inefficient, as it wastes resources by processing unnecessary updates.
MAIN POINTS
- BGP routers struggle when the entire BGP table cannot fit into their forwarding table.
- Inbound filters are used to limit the BGP table size on devices.
- Sending all prefix information wastes resources for the BGP neighbor and the device.
- Pushing inbound filters to BGP neighbors could improve efficiency.
TAKEAWAYS
- BGP table size management is crucial for router performance.
- Inbound filtering can lead to unnecessary CPU usage.
- Efficient BGP filtering can reduce resource waste.
- Collaborative filtering strategies may enhance network efficiency.