The Cisco 10000 Edge Services Router (ESR) Six-Port Channelized T3 Interface Module sets a new standard for flexibility, scalability, and price/performance in the T1 and T3 aggregation market. Targeted primarily at Internet service providers (ISPs), the Cisco 10000 ESR Channelized T3 Interface Module supports six T3 ports, each of which can be independently configured from a clear channel T3, NxT1, T1, FT1 and DS0 connection on the same port. The Cisco 10000 ESR also supports various subrate DS3 formats, integrating the channel service unit/data service unit (CSU/DSU) function on a per-port basis. By taking advantage of the Cisco 10000 ESR`s advanced performance routing engine (PRE) architecture, ISPs will enjoy not only industry-leading port density, but also the necessary processing performance to enable advanced IP services end users expect and demand from ISPs.