Re: Newbies Question: Do I really need to sacrifice Prefix-aggregation to do BGP Load-sharing? (the case of Multi-homed + Multi-routers + Multi-upstreams)

2022-10-19 Thread Douglas Fischer
I imagine it's an ISP you are talking about, where the traffic is mostly inbound. Hire transit companies that have good traffic engineering community policies. - Selective prepending or seletive no-export by: -> Type of peer. -> Geographic location of their routers. -> ASN specific. And then you

Re: Newbies Question: Do I really need to sacrifice Prefix-aggregation to do BGP Load-sharing? (the case of Multi-homed + Multi-routers + Multi-upstreams)

2022-10-19 Thread Jay Hennigan
On 10/18/22 23:27, Pirawat WATANAPONGSE via NANOG wrote: Dear Guru(s), My apologies if these questions have already been asked; in that case, please kindly point me to the answer(s). I hope the following information sufficiently describes my current "context": - Single customer: ourselves -

RE: Newbies Question: Do I really need to sacrifice Prefix-aggregation to do BGP Load-sharing? (the case of Multi-homed + Multi-routers + Multi-upstreams)

2022-10-19 Thread Kevin Burke
The inbound traffic will be determined by how the Tier 1’s decide to route, as you are observing they will pick either you or your other upstream. Traffic engineering as the Tier 3 carrier you have described has this kind of unexpected traffic routing. As you have obviously already tried

Re: Newbies Question: Do I really need to sacrifice Prefix-aggregation to do BGP Load-sharing? (the case of Multi-homed + Multi-routers + Multi-upstreams)

2022-10-19 Thread William Herrin
On Tue, Oct 18, 2022 at 11:27 PM Pirawat WATANAPONGSE via NANOG wrote: > - Two upstreams (See the following lines), fully cross-connected to our > gateways > - One (pure) commercial ISP > - One academic consortium ISP (who actually uses the above-mentioned > commercial ISP as one of its