Dell OS10 s5148f-on VLTi Orphan Port, No switchport, Static route and failover redundancy

Hey guys,

Deploying a new setup in a Datacenter Colo where they will statically route /24 subnets for our internal use, and the provider doesn't want to support LACP, which rules out VLT aggregation.

Their idea was to use 2 orphan ports, one from each switch, run "no switchport", assign different /28's to each switch port, and create interface routes to an IP within the /28 assigned locally to the orphan interface.

Here is an example of what they wanted for my return/internet traffic (in their native switch syntax).

Active/Active
static route 0.0.0.0/0 next-hop 1.1.1.65,1.1.1.81

Active/Backup

static route 0.0.0.0/0 next-hop 1.1.1.65 preference 10
static route 0.0.0.0/0 next-hop 1.1.1.81 preference 20

I think for OS10 to do something like this we would have to implement interface static routes that get removed when the remote end stops responding. Here is info regarding that.

 

When the interface goes down, OS10 withdraws the route.
When the interface comes up, OS10 reinstalls the route.
When the recursive resolution is broken, OS10 withdraws the route.
When the recursive resolution is satisfied, OS10 reinstalls the route.

My question is, if I only have a single link from my switch1 to their switch1 and from my switch2 to their switch2, and their switch1 goes down, and the interface route is removed from myswitch1, how will I get traffic to flow from my switch1 to their switch2 automatically? Or will peer-routing solve this for me, even as an orphan port? Would I have to failback to a static route on my switch1 that routes to myswitch2 (or thierswitch2)?

 

Thanks,

 

Hatter