Is it possible to configure serial interface as backup interface on SSG-520/550? My current link to ISP is ethernet but I have option to use serial interface as backup to the same ISP. On smaller SSG-s it works fine, but on SSG-500 I don't see the way how to configure it.
Thanks for the answer, but interface failover isn't what I need. Backup should be on synchronous (V.35 or X.21) serial interface with frame relay encapsulation. Is this feature in the roadmap for SSG-140, SSG-300 and SSG-500 systems?