About the SRLG/Facility Tab

Shared Link Risk Group (SRLG) information can be received from BGP-LS or Transport controller, whenever a path optimization occurs or whenever some event triggers rerouting. The information from these sources is merged and displayed on the UI. You can add, edit, and delete user-defined SRLGs from the SRLG/Facility tab of the network information table on the Topology (Network> Topology) page.

Transport SRLG information is considered whenever a path optimization occurs or whenever some event triggers rerouting. By default, Paragon Automation associates transport SRLGs to IP links based on information received from the transport controller. Connecting to more than one transport controller introduces the possibility of overlapping SRLG ranges, which might not be acceptable. The configuration of transport controller profiles allows for the specification of an additional TSRLGprefix (a prefix extension) for each transport controller to prevent unintentional overlap. Preventing unintentional SRLG range overlap requires vigilance when you have transport controller ranges and you also manually assign SRLGs to IP links.