JN0-281 · Question #58
A routing policy has been created to advertise OSPF routes in BGP. Which statement is correct in this scenario?
The correct answer is A. Apply the policy as an export policy within BGP. When advertising OSPF routes into BGP, the appropriate routing policy should be applied as an export policy in BGP. OSPF to BGP Route Advertisement: Routes learned via OSPF (a dynamic IGP) need to be exported into BGP to be advertised to external BGP peers. In Junos OS, this is…
Question
A routing policy has been created to advertise OSPF routes in BGP. Which statement is correct in this scenario?
Options
- AApply the policy as an export policy within BGP.
- BApply the policy as an export policy within OSPF.
- CApply the policy as an import policy within BGP.
- DApply the policy as an import policy within OSPF.
How the community answered
(40 responses)- A70% (28)
- B15% (6)
- C10% (4)
- D5% (2)
Explanation
When advertising OSPF routes into BGP, the appropriate routing policy should be applied as an export policy in BGP. OSPF to BGP Route Advertisement: Routes learned via OSPF (a dynamic IGP) need to be exported into BGP to be advertised to external BGP peers. In Junos OS, this is done using export policies. Export Policies in BGP: An export policy controls which routes are advertised out of a BGP session. In this scenario, the routing policy must be applied to BGP as an export policy to export the OSPF-learned routes to external BGP peers.
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