Which BGP option is required when load sharing over multiple equal-bandwidth parallel links from a single CE router to a single ISP router over eBGP?
Select the best response.
A. eBGP Multipath
B. eBGP Multihop
C. BGP Synchronization
D. BGP Synchronization
We are talking about multipath (not multihop) , so the only correct answer is A.
According to this document I think the answer A is correct.
https://www.cisco.com/c/en/us/td/docs/ios/12_2sx/feature/guide/fsxeibmp.html
you used multihop when eBGP peer is not directly connected to another eBGP peer and requires multiple hops to reach the remote eBGP peer.
https://www.cisco.com/c/m/en_us/techdoc/dc/reference/cli/n5k/commands/ebgp-multihop.html
Folks the correct and final answer is B.
When you have multiple equal-bandwidth parallel links from a single CE router to a single ISP router over eBGP, plz take notice that you can have up to 6 equal-bandwidth parallel links and each of them constitutes a segment which means that they have different subnets in their connections.
So, when you have such a situation, Best practices requires that you form bgp neighborship with the loopback address of the neighbor devices, and when you do, you are required to use ebgp-multihop because the neighbors are not forming bgp neighborship through any of the links.
I don,t know what mean Cisco, but in real world – always A.
Noone ISP didn’t make igp session with customer, and use some static pointed to customer Loopbacks.
Loopback for EBGP – very bad disign.
It’s B. https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13762-40.html
The main is “a single ISP router over eBGP?” – you need command multihop.
For sure it is B, google the whole question and you will see some pages give a real explanation why it is B.
I think’s A
– A. eBGP Multipath
A not B, which chutiya answered B.