Community discussions

MikroTik App
 
User avatar
j2sw
Member Candidate
Member Candidate
Topic Author
Posts: 119
Joined: Mon Sep 04, 2006 5:42 am
Location: Indiana
Contact:

Modern IBGP design questions

Tue Oct 06, 2020 4:13 pm

Want to see what folks are doing in this scenario.

Two Mikrotik Routers. Each has an ISP pulling in default routes via eBGP.

Are you doing a separate instance to establish iBGP? If so, are you doing "redistribute Other bGP" in the instance? Client to CLient reflection?

in the peer are you doing nexthop choice "force self, propagate, or leaving at default"?
Using route reflect in the peer?
 
User avatar
IPANetEngineer
Trainer
Trainer
Posts: 1313
Joined: Fri Aug 10, 2012 6:46 am
Location: Jackson, MS, USA
Contact:

Re: Modern IBGP design questions

Tue Oct 06, 2020 4:21 pm

A few thoughts here.

1) You don't want separate instances...that would require redistribution and isn't needed
2) You want a router that isn't a border to act as a route reflector often these are core routers - this can even be out of path like a CHR
3) You need to either set next-hop-self on each border router peering to the RR or advertise the PTP subnet of the upstream into OSPF
4) You only need route reflection turned on at the route reflector - the downstream clients need no special config


Here is a drawing and overview of this type of design with IPv4

Image
Global - MikroTik Support & Consulting - English | Español | Serbian | Danish +1 855-645-7684
https://iparchitechs.com/ecosystem/mikr ... consulting mikrotiksupport@iparchitechs.com

Who is online

Users browsing this forum: No registered users and 16 guests