Cisco router has several types of ports and interfaces that are used to interconnect many other devices and other routers. For this reason, these devices have numerous types of ports and interfaces are used. Figure 1 illustrates the back panel of Cisco router 1941. Here is the short explanation of back panel of the Cisco router 1941.
Back Pannel Explanation of Cisco Router 1941
- These are 2 USB ports providing additional storage space similar to flash. These ports are labeled as USB 0 and USB 1.
- These are Gigabit Ethernet interfaces. These ports generally provide LAN access by connecting to switches, other routers, and users. The ports are labeled as GE0/0 and GE0/1.
- These ports are Auxiliary (AUX) RJ-45 ports. Auxiliary ports are being used for remote management access similar to the Console port. Now considered a legacy port because of providing support for dial-up modems.
- These are console ports of the router which is important for initial configuration of the router. Two ports are available; the commonly used regular RJ-45 port at the left and a new USB Type-B (mini-B USB) connector at the right side at number 4. However, the console can only be accessed by one port at a time.
- Enhanced High-speed WAN Interface Card (eHWIC)- This slot is labeled as eHWIC 0 and eHWIC 1. These ports provide modularity and flexibility by enabling the router to support different types of interface modules, including serial, digital subscriber line (DSL), switch port, and wireless.
- Compact Flash slots labeled as CF0 and CF1 to provide increased storage flash space upgradable to 4 GB compact flash card per slot. By default, CF0 is populated with a 256 MB compact flash card and is the default boot location.