where did you get that nomenclature from (PSBR)?
are you referring to this?
I found it in this context:
7.Orchestrator Post-Installation stepsThe lab will not focus on actual installation of the Orchestrator. The orchestrator is typically delivered asa virtual appliance in OVA(for VMware)or QCOW2(For OpenStack / KVM)format and supports cloud-init for initial configuration.Installation of the virtual machine does not differ from any other virtual machine installation.However, once the appliance is operational, it is required to complete the following post-install steps:
Route flags are defined at the bottom of the output if you're not piping to grep or some other filter: P - PG, B - BGP, D - DCE, L - LAN SR, C - Connected, O - External, W - WAN SR, S - SecureEligible, R - Remote, s - self, H - HA, m - Management, n - nonVelocloud, v - ViaVeloCloud
That said, in your case the PSBR flag breaks down like this:
P: Route via a partner gateway
S: Secure eligible (traffic to this prefix will be encrypted via the overlay)
B: BGP learned route
R: Remote route (reachable via the overlay)