JN0-648 · Question #108
Click the Exhibit button. Referring to the exhibit, you must advertise the 100.0.0.0/16 routes from AS1 to AS2, but R2 is not advertising any BGP routes to R5. Why is this happening in this scenario?
The correct answer is B. The IBGP routes are not active and EBGP will advertise only active routes. actions-defaults.html Default BGP Export Policy: Readvertise all active BGP routes to all BGP speakers, while following protocol-specific rules that prohibit one IBGP speaker from readvertising routes learned from another IBGP speaker, unless it is functioning as a route…
Question
Click the Exhibit button. Referring to the exhibit, you must advertise the 100.0.0.0/16 routes from AS1 to AS2, but R2 is not advertising any BGP routes to R5. Why is this happening in this scenario?
Exhibit
Options
- AThe IBGP routes will not be advertised because you must use a policy to advertise IBGP routes.
- BThe IBGP routes are not active and EBGP will advertise only active routes.
- CThe IBGP routes will not be advertised because the AS path shows as incomplete.
- DThe IBGP routes are not active because the next hop is not reachable.
How the community answered
(59 responses)- A5% (3)
- B81% (48)
- C10% (6)
- D3% (2)
Explanation
actions-defaults.html Default BGP Export Policy: Readvertise all active BGP routes to all BGP speakers, while following protocol-specific rules that prohibit one IBGP speaker from readvertising routes learned from another IBGP speaker, unless it is functioning as a route reflector. ed@vMX-PE1# show protocols bgp group eBGP | display set set protocols bgp group eBGP type set protocols bgp group eBGP family inet unicast rib-group inet0-to-test set protocols bgp group set protocols bgp group eBGP neighbor 10.0.13.3
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