BGP: Difference between revisions
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= EBGP vs IBGP = |
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! EBGP !! IBGP |
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| Peering is between two different AS || Peering is between same AS |
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| Routes learned from eBGP peer will be advertised to other peers |
| Routes learned from eBGP peer will be advertised to other peers(EBGP or IBGP) || Routes learned from IBGP peer will not be advertised to other IBGP peers, can be advertised to EBGP peer. |
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| EBGP peers are set with TTL = 1, neighbors are assumed to be directly connected.<br />Can change this behavior for EBGP by “neighbor x.x.x.x ebgp-multihop <TTL>”. <br />Multihop is the term used in EBGP only.|| For IBGP peers dont need to be directly connected. |
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| Routes have AD of 20 || Routes have AD of 200 |
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| Next hop |
| Next hop is changed on advertised routers || Next-hop IP will not be changed when adv prefixes to another IBGP |
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