IP Support Systems Combined with Edge - Marc Network Services Gateways and Edge - E switches, the Edge - IP Support System allows service providers and enterprises to deliver the best possible support at the lowest cost. Several operators have seen a marked improvement in installation/configuration time, call resolution as well as a reduction in hard operational costs. - View 6400 Redundant Systems package contents: Two 6400 chassis Monitoring feature module licensed for 2500 nodes Configuration backup, restore, upgrade.