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Re: [rare-dev] [RARE-users] [gn4-3-wp6-t1-wb-RARE] [freertr] technical difficulties at par0101 internet access


Chronological Thread 
  • From: mc36 <>
  • To: ,
  • Cc: , Mohácsi János <>, Visky Balázs <>, "" <>
  • Subject: Re: [rare-dev] [RARE-users] [gn4-3-wp6-t1-wb-RARE] [freertr] technical difficulties at par0101 internet access
  • Date: Mon, 29 Aug 2022 15:03:09 +0200

so, when you cross poznan-geant boundary, from that point, you can only list
loose path options...
and this is the point where you lose the path diversity....
and this what could be solved with -car or -ct


On 8/29/22 15:01, mc36 wrote:
so the issue with inter-as rsvp-te is that you dont have the other domain's
topology in igp so you cannot calculate explicit-path at the headend pe

On 8/29/22 14:59, mc36 wrote:
well, and so if the colorful labeled unicast crosses the asbr without rsvp
but in pure bgp then it separates the domain not forcing anybody to pick
rsvp...
especially inter-as rsvp-te is ugly as hell...
there are bad or even worse solutions:
-verbarim te, that is, loosely routed path options (sorry for cisco
terminology)
-a controller...
-maybe others

On 8/29/22 14:57, mc36 wrote:
without running rsvp --- so a domain (like poznan) is free to use rsvp
internally but it won't force geant nor jisc to do so...
so for example kifu <3 sr-mpls as far as i know....

On 8/29/22 14:54, mc36 wrote:
well yess, we can have poznan---geant---jisc colorful bgp labeled unicast for
example...
that is, poznan creates an mdvpn and can "request" 2 separate paths without
running rsvp on the asbr! (the pe box peering with geant in bgp-lu)
juniper obviously does it for the mobile but here we can have reliable bier
aka netmusic
but well, for that, a lot need to be designed, we really just have a high
level design..
first one needs to thing that throughly, scratch an lld (max 10 lines)
then the coding, well, seems pretty easy....

i bet i'll skip the lld part (as usual:)) after i read the hld 100 more
times... :)

On 8/29/22 14:47, wrote:
No problem at all !

Let s move on the next exciting topics !
I d like to see more development on BGP-CT, if I m not wrong this will
unlock new inter domain services ?

Anyway, thanks for all the work done so far
Frederic

Le 29 ao t 2022 14:42, mc36 <> a crit :



On 8/29/22 14:38, Fr d ric LOUI wrote:
- Simply because at the time PAR0101 was deployed CLEARNET did not exist.

then i cannot say a thing than sorry



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