Introduction
Networks are the main way of communication nowadays. There should be effective network management so that the signal can flow easily from one place to another. Network services depend on a particular location. For the signal to flow from one place to another there should be an end-to- end connection from the starting to the receiving ends. Routers are placed in various places. At the receiving end, they receive the packets and perform the corresponding services which are requested by the user.
Step 1
Step 1:
Data is sent in packets so they are processed accordingly. For arranging the network services, the first thing someone needs is a simple processor that has the tendency of reading instructions and could be able to access the data bus of the memory. In network services, the code section and the data section are separated from each other so that data can be effectively transmitted.
Step 2
Step 2:
The data which is to be run is placed in the instruction segment of the processor. The data from the instruction memory is logically processed so that code development for packet processing becomes a lot easier. After that the codes are placed in a particular place in the memory where the data can be easily accessed by the processor. These systems cannot be directly used in the hardware applications. Various numbers of network services and packets are required for the effective transmission of information.
Step 3
Step 3:
When a service is activated, the network services ensure that the correct information is being mounted on the right instruction memory and data memory context. When a program is going to be executed in network services, the instruction memory contains the program code for multiple services and the data memory contains the services which are to be performed.
Step 4
Step 4:
The instructions should be mapped properly so that the processor can easily access the memory. For the translation of address, chunks of 256 bytes are required. The most significant bit is being sent to 8 bit address shifter component. With the help of SRAM, the address shifter can be forwarded to the next address and if the data is overloaded, then it is shifted to the next memory location. There is another tag known as the service tag. This is used to select the signals and multiplex it. It identifies the network services which are needed to be performed by the processor and after that the service program is executed.
Step 5
Step 5:
There are two types of packets available in network services. One packet is used to transfer data from the processor to access the next packet. Once the processing of a packet is being completed, the buffers are swapped. Two types of tags are found there. The first one is the service tag which identifies the network services which is to be provided by the service processor. It is used to shift the address and then determine the new address space. The other is known as the flow tag and the tag is used to de-multiplex the correct flow of state.
Conclusion
Network services are defined as a protocol feature or a processing function that occurs within an application in a data communication.
Source
http://www.service-design-network.org/
