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IP SLA design


We have two data centres  A and B

Both are same in design

Datacentre A:

WAN router is connected to ------firewall-------firewall has many DMZ switches----------firewall internal interface is connected to core switch.....the core switch is connected to datacentre B via fibre and running OSPF (same vlan spanned)

Datacentre B:

Same as datacentre A

Design for high availability:

In datacentre A I am thinking that i would add a default static route pointing towards firewall internal interface on firewall.

I will add IP SLA and will ping the interface of provider router on WAN as soon as it fails, IP SLA will install a static route towards the second daatcentre internal firewall interface.

Is this a good design????

Do i have to add any Static routing on datacentre B???

this is tarffic going out for in traffic we will use BGP with service provider

please advise

Everyone's tags (4)

IP SLA design


A draw could be way better for us to provide you a better design.

I would not want to provide any response yet until I have a better description of the network setup.

Then I will let you know where to set the SLA and how to do it if you allow me


Looking for some Networking Assistance? Contact me directly at I will fix your problem ASAP. Cheers, Julio Carvajal Segura