Use vswitch network terminology to make your articles more professional

Use vswitch network terminology to make your article more professional. Content: Broadcast (Broadcast), BroadcastAddress (Broadcast address), Collision (conflict), FlowControl (Traffic Control ), full-duplex (Full duplex) and so on.

Vswitch Network Terminology Broadcast (Broadcast)

A Method of packet delivery grouping. The packet group sent in this way will be sent to all computer systems that are covered by the broadcast address connected to the sending system.

BroadcastAddress)

An address that is used to send messages to all workstations in the network at the same time. In a network that uses the TCP/IP protocol, the IP address of the host ID segment hostid full 1 is the broadcast address, and the broadcast group is sent to all computers involved in the hostid segment.

For example, for a 10.1.12000000000255.0 network segment, the broadcast address is 10.1.1.255255, that is, 11111111 in the binary system). When a packet whose destination address is 10.1.1.255 is sent, it will be distributed to all computers on the CIDR block.

Switch Network Terminology Collision (conflict)

When multiple events request a service at the same time, the service cannot distinguish and cope with multiple requests. Ethernet uses CSMA/CD to handle conflicts and coordinate re-transmission.

FlowControl)

Measures taken to prevent information transmission congestion in computer networks. Traffic control can be implemented at multiple layers of the network. For example, in a TCP/IP network environment, you can use the ICMP protocol to suppress the source on the Layer 3, that is, the network layer to implement traffic control.

This mechanism is established between two sites on the point-to-point link. If the receiving site is congested, it can send a frame called a "paused frame" back to the Origin Site of the other end, indicating that the origin site stops sending packets during a specific period of time. Before sending more data, the sending site must wait for the request time.

The receiving site can send a frame back to the origin site at zero wait time, indicating that the Origin Site starts sending data again. A more complex method can change the sending frequency continuously. For example, the window mechanism adopted on the layer 4 of the network is the traffic control method.

Full-duplex (Full duplex)

Full Duplex is the capability of two-way data transmission at the same time in the channel.

Half-duplex (Half duplex)

Data can only be transmitted in one direction at the same time in the channel.

Switch Network term IGMPInternet workgroup Management Protocol)

IGMP is mainly used to solve the bandwidth usage problem during network broadcast. When the information on the network needs to be transmitted to all workstations, a broadcast will be issued.) The IP Address indicates that the host ID is 1. The switch sends the broadcast information to all workstations without filtering;

However, when only some of the information needs to be transmitted to a certain workstation, multicast (also called multi-point broadcast) is usually used, which requires the switch to support IGMP. Switches that support IGMP will recognize multicast information and forward it to the corresponding group, so that the network bandwidth of workstations that do not need this information is not wasted. IGMP is particularly important for improving the network performance during multimedia transmission.

Vswitch Network Terminology Multicast (Multicast)

In broadcast, multicast is the process of sending information to the selected target. For broadcast signals, all devices are ready to receive them at any time. Unlike broadcast, multicast only transfers valid information to network nodes that can receive multicast in advance.

PortMirror (Port image)

PortMirror is used for network performance monitoring. It can be understood as follows: Establish an image relationship between port A and port B. In this way, data transmitted through port A will be copied to port B at the same time, analyzer or analysis software connected to port B for performance analysis or fault determination.

PortTrunking)

PortTrunking refers to the combination of multiple physical ports on the vswitch and logically bundling bundle) to form a port with larger bandwidth and form a trunk path. Supports load balancing and redundant connections.

Vswitch Network Terminology QoS (Service Quality)

QoS is a term used to define specific parameters required by a user application. The definition of service parameters may include bandwidth requirements, jitter, wait time, and latency. ATM provides QoS Assurance by supporting CBR, ABR, and UBR traffic.

RARP (Reverse Address Resolution Protocol)

RARP is used to determine the IP address when only the hardware address MAC on the TCP/IP network of one computer is known. RMON: RMONMIB is composed of a set of statistical data, analytical data, and diagnostic data that can be displayed using standard tools produced by many suppliers, therefore, it has a remote network analysis function independent of the supplier.

The RMON detector and the RMON client software are combined to implement RMON in the network environment. The key to the effectiveness of the RMON monitoring function is that the detector must have the ability to store statistics history, so that it does not need to keep polling to generate a view on the network running status trend. The "RMONMIB function group" function box describes the Network Management Information types collected by RMOMMIB.

SNMP (Simple Network Management Protocol)

SNMP is a widely used network protocol that uses proxy software embedded into network devices to collect network communication information and statistics about network devices. The agent continuously collects statistics, such as the number of bytes received, and records the data to a management information library (MIB. The network administrator can obtain the information by sending a query signal to the agent's MIB.

Switch Network Terminology Stackable)

Vswitch Network TerminologyStackableThe stack is connected through the hub backplane or through a dedicated stack cable. The stacked hubs or switches are logically a network-managed device.

Spanningtree)

SpanningTree also complies with the IEEE803.1d standard. When a loop appears in the network, the protocol can use the Spanning Tree Algorithm to logically disconnect one of the links and make it a backup line. When the network is disconnected, the Protocol automatically starts the backup line to ensure that the Network works normally.

A technology used to detect loops in the network and logically block redundant paths to ensure that only one path exists between any two nodes. To improve reliability, redundant connections are often required between devices in the network. However, the logical topology of Ethernet is star or bus type, so loops are not allowed in the link. SpanningTree can solve the preceding conflicts.

TCP/IP (Transmission Control Protocol/Internet Protocol)

Internet protocol families define a wide range of services, allowing heterogeneous network systems to operate on each other. This protocol family is a hierarchical set of protocols, including all aspects of network services and communication. Its main definitions are included in RFC791 and RFC793, but many other related RFC also apply to this protocol family.

Throughout (throughput)

Throughput refers to the amount of data transmitted from one place to another or processed within a specified period of time. The Ethernet throughput is measured in "megabits per second" or "Mb/s ".

Uplink)

Cascade is connected to another hub or vswitch through a port of a hub or vswitch. After cascade, each hub or vswitch is logically multiple managed devices. The Cross-over cable is not required for devices connected through cascade ports.