Designing Network Transactions

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Applications are the backbone of business roles. To reach the business goals of the customer, the network architect must guarantee application performance. Nevertheless, every single application or traffic type has dissimilar requirements IT services, which can create performance issues.

 

Transaction-Processing Applications Transaction-processing is a kind of processing in which the PC responds instantly to user requests. Every request created by the user is a transaction. All these transactions may need extra operations to take place. Therefore, application transactions are a big and important consideration in network design.

 

Atomic

 

An atomic transaction ensures that either all the processes of a transaction are executed or none of them are. If the transaction is not entirely processed, then the whole transaction is canceled.

 

Consistent

 

A consistent transaction confirms that partial transactions are not permitted. If a partial transaction happens, the system returns immediately to the previous state.

 

Isolated IT services

 

An isolated transaction is a secure transaction that is totally isolated from all the other transactions on the net. Security is a main network design concern. Access control lists (ACLs), data encryption, and firewalls to the network topology are highly recommended for every modern network.

 

Durable

 

A durable transaction ensures that after the transaction is finalized, the transaction will never be undone even if the system faces a failure. A robust design for transaction processes needs redundancy at several levels. These levels take account of the Physical Layer connections, servers as well as network devices like switches and routers. The net expert evaluates redundancy and security devices that support applications.

 

Redundancy

 

Integrating transaction applications entails that the designer needs to think through the impact of each transaction on the net. This process is vital, since extra cabling or network devices may be needed to deliver the redundancy or available throughput that these transactions need. Redundancy has the following advantages: 1. reduced network downtime, 2. improved availability of applications.

 

Nets with redundancy reduce single points of failure. If a route or device fails, the redundant route or device can be used. Servers that process transactions have another path to receive or forward traffic. This guarantees that the application is accessible when the client requests it.

 

Routers can also provide redundancy if we install protocols like Rapid Spanning Tree Protocol (RSTP) or Hot Standby Routing Protocol (HSRP). RSTP stops Layer 2 switching loops that can happen with redundant switches. On the other hand, HSRP can offer Layer 3 redundancy and a reliable recovery mechanism.

 

Designing a reliable, redundant network can save you a lot of money and time.

 

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