SD-WAN Device Failures

[SenthuranNadeshan3377]

Hi Guys,

I have a doubt regarding network device failures. If a network device goes down, the up-links (incoming link and out going link) should be bridged and the network functions should work without any issues. How do we call this mechanism? 

Regards,

Senthu 

[gneslim]

Are you referring to the terms "Fail to wire" or "Fail Open"?

Explanation: The LAN-WAN connection becomes a straight-through connection if the transit appliance is going through hardware or software failure.

[SenthuranNadeshan3377]

Hi 

Yes. "Fail Open". Is it support in SD-WAN solution?

Regards,

Senthu

[gneslim]

I believe the fail-to-wire feature is currently not available in the Viptela-based SD-WAN solution.

[Simon Ko]

I think only transparent devices can do this.

ASA on wire mode and Riverbed in Fail-to-wire , I believe, can be taken out of packet path.

Since device failed, unless it is designed as such, there is no managing process to put ports into a bridge group.

But, I think it can be done.

Their answer is buy two!

[stefan.radovanovici]

There is no such feature in Cisco SD-WAN.