API White Paper: annual release of vswitch interface types (see figure)

Interface White Paper: The annual release of vswitch interface types). Today, we will introduce the AUI interface, BNC interface, and Console interface knowledge. You will have a rough understanding of the switch interface type based on the physical diagram.

Vswitch interface type: AUI Interface

The AUI interface is used to connect to a coarse coaxial cable. In the early days, the NIC was connected to a hub or vswitch to form a network. The AUI interface is a "D" Type 15-pin interface, used in the ring plate network or bus network, you can use the external transceiver (AUI-to-RJ-45 ), connect to the 10Base-T Ethernet.

Vswitch interface type: BNC Interface

BNC is an interface specifically used to connect to a fine coaxial cable. The fine coaxial cable is also known as the "fine cable". Its most common application is the split display signal interface, that is, the interfaces of the input display are separated by the red, green, blue, and horizontal and vertical scanning frequencies, with less interference between signals. Currently, BNC is basically no longer used in switches, and only a few BNC interfaces are available in some earlier RJ-45 Ethernet switches and hubs.

Vswitch interface type: Console interface

Vswitches that can manage networks generally have a "Console" port, which is used to configure and manage vswitches. Connecting to and configuring a vswitch through the Console port is required to configure and manage the vswitch. Because other configurations can be implemented only by IP address, domain name, or device name, the newly purchased switch obviously cannot have these parameters, therefore, the Console port is the most common and basic switch management and Configuration Port.

The Console ports of different types of vswitches are located in different locations, some on the front panel, and some on the back panel. Generally, most modular switches are located on the front panel, while most fixed configuration switches are located on the rear panel.

Both the top and the side of the port will have an identifier similar to "CONSOLE. In addition to different positions, the Console port type is also different, the vast majority of switches are using RJ-45 port, but there are also a few using DB-9 serial port or DB-25 serial port.

DB-9 serial port

DB-25 serial port

Whether the switch uses a DB-9 or a DB-25 serial interface or a RJ-45 interface, a dedicated Console line is required to connect to the serial port of the configuration side computer. The Console line corresponds to different Console ports of a vswitch. There are also two types of Console lines: one is a serial line, that is, both ends are a serial interface (both ends are a master line ), both ends can be inserted into the serial port of the computer and the Console port of the switch;

Another type of switch interface is a flat wire with both ends being a RJ-45 connector (RJ-45 to RJ-45. Because both ends of flat line are RJ-45 interface, can not be directly connected with the computer serial port. Therefore, you must also use an adapter that RJ-45 to DB-9 (or RJ-45 to DB-25) at the same time. Typically, such a Console line and the corresponding DB-9 or DB-25 adapter are randomly presented in the switch box.