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My team is trying to integrate SDWAN into our existing fielded network. Currently, we have both OSPF and BGP running across our multi site backbone network. I know to get both OSPF and BGP into OMP, I have to redistribute those protocols into OMP, but my questions comes at the other side. When I redistribute from OMP back into OSPF and BGP, is SDWAN smart enough to know if the routes originated in OSPF, it will redistribute only into OSPF, and if it's BGP, it will only redistribute into BGP? Or will I need to have policies to match on the origin-protocol in OMP, and then redistribute to the correct service side routing protocol?
Thanks,
Hi Tim,
In order to avoid loops on the Service side, you need to use traditional routing loop mechanisms like routing marking (OSPF tags, BGP communities or AS Path, etc) and filtering creating Localized Control Policy on the Service side.
If you are using BGP on the Service side, I recommend you to use "propagate-aspath" and under BGP process and "overlay-as" under OMP process.
I hope it helps.
Henrique