Your ISP is announcing a default route to both R1 and R2. You want your network routers to forward all Internet traffic through the R1 device. Which BGP attribute would you use?
Local Preference:
The local preference attribute is used to prioritize specific paths within an autonomous system. It indicates the preferred path for outbound traffic.
A higher local preference value is preferred over a lower one.
By setting a higher local preference value on R1, you can ensure that all routers within your autonomous system will prefer the route through R1 for Internet traffic.
Example Scenario:
If both R1 and R2 receive a default route from the ISP, you can configure a higher local preference on R1 (e.g., 200) compared to R2 (e.g., 100).
As a result, all routers within your network will choose R1 as the preferred next-hop for forwarding Internet traffic.
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