cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements

Choose one of the topics below for SD-WAN Resources to help you on your journey with SD-WAN

This community is for technical, feature, configuration and deployment questions.
For production deployment issues, please contact the TAC!
We will not comment or assist with your TAC case in these forums.

159
Views
0
Helpful
3
Replies
Highlighted
Beginner

Branch migration configuration

Hi,

 

Could someone please share some document or link reference for an example about configuring a remote vEdge branch that besides of communicating with other sd-wan sites, be able to:

 

Connect directly to non SD-WAN sites (MPLS sites),  via the MPLS underaly itself, this is, NOT via SD-WAN to DC and then to MPLS?

 

Hope you can help

 

Thanks in advance

 

Best Regards

 

Enrique Agredano

3 REPLIES 3
Highlighted
Cisco Employee

Re: Branch migration configuration

Hi,

 

See fig16 and 17 and also corresponding tables explaining the routing that should be configured.

https://www.cisco.com/c/dam/en/us/td/docs/routers/sdwan/migration-guide/cisco-sd-wan-migration-guide.pdf

 

Hasham

SD-WAN community resource page

https://community.cisco.com/t5/networking-documents/sd-wan-community-resources/ta-p/3745752

Highlighted
Beginner

Re: Branch migration configuration

Highlighted

Re: Branch migration configuration

I would recommend following the Cisco guide of using HUBs for a more controlled rollout.

 

Technically there is another way where you can connect a Back2Back cable between ports in the same vEdge chassis but configured in different VPNs.

 

If you have BGP in VPN0 for the MPLS you can configure eBGP between the ASN in VPN0 to a different ASN in VPN1,  the BGP routes in VPN0 will be "leaked" into the routing table of VPN1,this way you can reach your non-sdwan site directly through the underlay.

 

The AD for the BGP routes would have to be taken into consideration as they have better AD that OMP so i you have more specific BGP routes in VPN 1 they will prevail over OMP what can cause undesired routing.