uRPF - reboot Alexander Azimov aa@qrator.net uRPF Feasible Mode: - PowerPoint PPT Presentation

uRPF - reboot Alexander Azimov aa@qrator.net

uRPF Feasible Mode: Problem Provider A Provider B 178.248.232.0/24 Customer Ingress Traffic Egress Traffic

uRPF Feasible Mode: Solution Provider A Provider B OK! 178.248.232.0/24 178.248.232.0/24 NO-EXPORT, GRACEFUL_SHUTDOWN Customer Ingress Traffic This will work for more then 85% ISPs! Egress Traffic

Summary Positive: • We do not need to change specification; • We do not need to ship new software; • We solve problem for majority of ISPs; Negative: • We overload GRACEFUL_SHUTDOWN community;