The Cisco 2500 series is the proven choice for data access for small businesses and small branch offices. The Cisco 2500 series delivers the flexibility, security, and functionality that small offices demand today and as networks evolve.??The Cisco 2500 series is a multiprotocol router platform that is the basis for the following four product types: a compact single LAN multiprotocol router, a compact router/hub with 8, 14, or 16 Ethernet ports, a compact router/access server with 8 or 16 asynchronous serial ports, a dual LAN/multiprotocol router.