SD-WAN Question

[sel18]

Hey everyone,

Please i want to know with the SD-WAN could i balance an tunnel VPN between two operators.

PS: Not the balance of the traffic but the balance of all the tunnel VPN; i mean also did we can create an tunnel VPN and in the case of failed an operator all the tunnel will balance to the other operator !!

thanks in advance.

[Amr_Younes]

Do you mean to have a main and backup path? not load sharing?

[sel18]

@Amr_Younes 

yes not the load sharing, i mean all the tunnel could be balancing between two operators !

[Amr_Younes]

You can use the preference under the tunnel interface.

So for example main tunnel has a preference of 100 and backup with lower preference (by default it is 0)

inter ge0/0

tunnel-interface

encapsulation ipsec preference 100

https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/System-Interface/systems-interfaces-book-xe-sdwan/configure-interfaces.html

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Or you can use last resort option where backup tunnel won't form unless main tunnel is down.

https://www.cisco.com/c/en/us/td/docs/routers/sdwan/command/sdwan-cr-book/config-cmd.html#wp2241830502

[Yashmit]

Hello Sel ,

Please correct me if I am wrong , your concern is if one service-provider link (underlay Transport) will goes down then all tunnels will form via other service provider.

Am I right ?

B.R.

Yashu

[sel18]

@Yashmityes that's it all the tunnels could change !