4 way switch symbol

real service.Server address. When a user applies for an application, a VIP connection request with the target server group, such as a tcp syn packet, is sentTo the server switch. The server switch selects the best server in the group and uses the VIP address in the terminal address as the actual service.And send the connection request to the server. In this way,

of the structure of the array, and you want to have the function name and menu item command name has an intuitive, name relationship. Then the following code is very useful:struct command{char * name;void (*function) (void);};#define COMMAND (name) {name, name # # _command}Then you can easily initialize an array of command structures with some pre-defined commands:struct command commands[] = {COMMAND (quit),COMMAND (Help),...}The command macro acts as a code generator here, which reduces the co

application layer. The layer-4 switch supports all protocols below the layer-4 of TCP/UDP. It can identify the packet header length of at least 80 bytes and distinguish the application type of data packets based on the TCP/UDP port number, in this way, access control at the application layer and service quality assura

. To put it simply, the layer-4 switch is based on the packet exchange process at the transport layer. It is a new type of LAN switch based on the Application exchange requirements at the TCP/IP application layer. The layer-4 switch supports all protocols below the layer-

. However, the traditional UDLD mode does not respond to this situation. Second, when one side of the link is in the UP state and the other side is in the Down state, an error message is displayed if the active UDLD mode is used, and set the port to the error status. However, if the traditional UDLD mode is used, there will be no response. This is exactly what I have mentioned above to solve the problem of black holes on the road through the active UDLD mode.

C # a more elegant way to replace switch statements, Today, I encountered a condition for using the switch statement in the project, but the problem is that there are many conditions. There are about dozens of conditions, and case Judgments are made when the screen is full, is there a more elegant way to replace

switch, it also supports smart functions that are impossible for layer-3 switches to control network traffic and service quality. Key technologies supported by layer-4 vswitches Different from the L2 Switch, the MAC address and 802.1Q VLAN tags are used to complete the link layer switch process, it is also different f

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switch is based on the packet exchange process at the transport layer. It is a new type of LAN switch based on the Application exchange requirements at the TCP/IP application layer. The layer-4 switch supports all protocols below the layer-4 of TCP/UDP. It can identify the

control network traffic and service quality. Key technologies supported by layer-4 vswitches Different from the L2 Switch, the MAC address and 802.1Q VLAN tags are used to complete the link layer switch process, it is also different from layer-3 switching/routing devices that use IP address information for network path selection to complete the switching process

network traffic and service quality. Key technologies supported by layer-4 vswitches Different from the L2 Switch, the MAC address and 802.1Q VLAN tags are used to complete the link layer switch process, it is also different from layer-3 switching/routing devices that use IP address information for network path selection to complete the switching process, the la

content of the source address and destination address of the third-level data packet header. You can take corresponding actions based on the observed information, implement the key functions of bandwidth allocation, fault diagnosis, and access control over TCP/IP application data streams. The layer-4 switch optimizes the network through task allocation and Server Load balancer, and provides detailed traffi

requirements. The layer-4 switch not only performs end-to-end switching, but also determines or limits the switching traffic based on the Application Characteristics of the port host. To put it simply, the layer-4 switch is based on the packet exchange process at the transport layer. It is a new type of LAN

switch is based on the packet exchange process at the transport layer. It is a new type of LAN switch based on the Application exchange requirements at the TCP/IP application layer. The layer-4 switch supports all protocols below the layer-4 of TCP/UDP. It can identify the

key functions of bandwidth allocation, fault diagnosis, and access control over TCP/IP application data streams. The layer-4 switch optimizes the network through task allocation and Server Load balancer, and provides detailed traffic statistics and accounting information, in this way, network congestion, network security, and network management are solved at the

TCP/IP application layer. The layer-4 switch supports all protocols below the layer-4 of TCP/UDP. It can identify the packet header length of at least 80 bytes and distinguish the application type of data packets based on the TCP/UDP port number, in this way, access control at the application layer and service quality

content of the source address and destination address of the third-level data packet header. You can take corresponding actions based on the observed information, implement the key functions of bandwidth allocation, fault diagnosis, and access control over TCP/IP application data streams. The layer-4 switch optimizes the network through task allocation and Server Load balancer, and provides detailed traffi

--------------------------------------------------------------------------------GE1/0/1 S 32768 1 {acdef}GE1/0/2 S 32768 1 {acdef}GE1/0/3 S 32768 1 {acdef}Remote:Actor partnerpriority Oper-key SystemID Flag--------------------------------------------------------------------------------GE1/0/1 1 32768 1 0x8000, 000f-e267-57ad{acdef}GE1/0/2 2 32768 1 0x8000, 000f-e267-57ad{acdef}GE1/0/3 3 32768 1 0x8000, 000f-e267-57ad{acdef}The above information indicates that aggregation group 1 is a two-tier dy

This article introduces several representative products recommended by the layer-4 switch technology. This article is divided into three parts: What is the layer-4 switch? The technical principle of the layer-4 switch is recommend