Route decision

[acbenny]

Hi expert, I would like to confirm below does below situtation is correct or not

1) If Router A can learn X route from ibgp and ebgp (X route decision will be base on BGP attribute), not AD. Is it right ?

2) If Router A can learn X route from ibgp and ospf (X route will occurr in ospf status because ospf AD 110 is better than ibgp AD 200) Is it right ?

3) If Router A can learn X route from ibgp and ebgp and ospf ( What X route will be ?)

Thank!

[BOGDAN OVIDIU STANCIU]

Hy,

Considering only your information, I think that:

1) The decision will be taken from BGP attributes: Weight, Local_Pref, AS_Path, Origin, MED, and now is Neighbor Type (eBGP preferred over iBGP).

2) right. OSFP AD=110, iBGP AD=200

3) without considering other attributes, and other rules, the router will choose the eBGP route (AD=20) over OSPF route (AD=110)

All the best,

Bogdan