Cisco router lab dce-dte loopback cable
1.2 Architectural Components of a Router This packet tracer 8.0 lab will test your ability to configure clock rate (DCE side) and HDLC on a serial link between two back to back connected Cisco ISR routers.
However, when using a null modem cable in a router-to-router connection, one of the serial interfaces must be configured as the DCE end to provide the clock. 3.2 Connections (Ethernet shared media and point-to-point) When a DTE and DCE are connected, the serial port on a router is the DTE end of the connection, by default, and the clock signal is typically provided by a CSU/DSU, or similar DCE device.Single-mode fiber, multimode fiber,copper Compare physical interface and cabling types 1.7 Controllers (Cisco DNA Center and WLC).Explain role and function of network components It has one RS232 port, Data Communications Equipment (DCE) (for Console port) RJ45, and Data Terminal Equipment (DTE) (for Auxiliary port) RJ45. System Bus: This allows communication with Ethernet/Token Ring controllers, WAN port interfaces, and so on.ĭual Universal Asynchronous Receiver-Transmitter (UART) provides the necessary user interface. In addition, Buses are used to transfer instructions and data to or from specified memory addresses.ĬPU Bus: It is used for high speed operations with direct Processor access. System Control Logic is used to help the main processor with device control, interrupt handling, counting and timing, data transfer, minimal First In, First Out (FIFO) buffering, and communication with network interfaces and Dynamic RAM (DRAM).ĬPU use Buses to access various components of the system. The following are the important characteristics of the CPU.ģ2 bit bus, 20 MHz clock (25 MHz on some platforms).Ģ56 Bytes internal Data Cache, 256 Bytes internal Instruction Cache, both direct mapped. The CPU used here is typically Motorola 68030 CISC.