Specifications include, but are not limited to: Leased Lit Fiber / Internet Access Service Architecture The Bidder’s proposed solution shall include a target WAN / Internet Access architectural diagram. The following diagram (Figure 3 –Target WAN/Internet Architecture) is provided as a reference architecture only and is not intended to dictate the Service Provider’s solution architecture. Service Provider shall provide LAUSD with the methodology/criteria for determining charges for provisioned bandwidth at designated District sites. The Service Provider’s submitted billing invoices shall clearly indicate the date and time of any changes to bandwidth utilization CIRs and related charges within a given billing cycle. For example, if charges for bandwidth adjustments (up or down) occur during a given billing cycle, then indicate the date, time, and charges both before and after the bandwidth adjustments were applied. Service Provider shall make invoices for services and corresponding detailed reports available upon request from the District. Service provider shall also provide a web portal with invoices in Excel or .txt format, and also PDF format. District order number must appear in invoices and report downloads.