Farhan Zahedi

Hello. Good afternoon. I completed my BTech in electronics and communication engineering. After that, I joined MS Techsoft as a network engineer. I then did freelancing work. Then, I moved to Dubai and joined Berkeley Industries, where I worked at Dubai airport, managing an enterprise infrastructure that included various network devices and server storage. I then worked in Dubai and in Saudi Arabia, at Zaman and various oil and gas plants in Sadara, etcetera, managing IT and network infrastructure, including a virtualized environment. After that, I worked as a freelancer and then joined as a tech consultant. As a tech consultant, we had to give clients a deep understanding of technology transformation, along with different frameworks like the ITL framework. We were also part of the IoT and smart city mission. Under that, we developed digital transformation and were part of developing a high-scale data center and a network throughout the city. Thank you.

In Cisco environments, there are some Cisco legacy developments, like, in either channel, we have LAPG. For a multivendor ecosystem, we have to configure switches for open standards. In ether channels, we have to configure LACP and PGP. In that scenario, we have to configure LACP because it gives more flexibility. They have their legacy protocol and their parallel open source protocol, and they work seamlessly. In that scenario, we have to configure open standard protocols. In terms of STP, we have to use PBST or MSTP in HSRP or in routing protocols. Between Cisco and multivendor ecosystems. Either it's Juniper or HP or Aruba or other vendors.

We VRRP, it is used to create a virtual routing protocol. It is pivotal in maintaining network uptime because we create a different virtual routing table for different types of traffic, the application, the network, the management, or whatever the type of scenario. In this case, we create a virtual traffic, and that reduces the lookup time. And that is the pivotal factor for network uptime, or it is for maintaining the SLA requirement for the client.

In terms of security and firewall, the intelligence and prevention detection we have, because our system is not designed for multi-vendor or some have legacy protocol integration. In legacy protocol integration, there exists a pre-existing security version. So we have to configure in open standard, or we have to upgrade our firewall, or we have to upgrade our firewall system to incorporate the McAfee system if we want to make our system fully vulnerable. If our system is unavailable, then we have to upgrade and integrate the system. If we update with some open standard, then it is easy for us to incorporate the McAfee IPS integration system.

If there is any surge in the network or that is unusual in the network, we have to identify. Suppose we have EMS tools or logs tools or SIM or any security tool, we have to analyze the previous traffic and when the spike is going on. In that scenario, we have to check if any change configuration happened in the switches themselves. And we have to analyze the traffic by using network monitoring tools. The process step is to analyze using network monitoring tools. Then, we have to look for unusual utilization in terms of throttling of the bandwidth, CPU utilization, or data plane, or where the traffic utilization is from which traffic created that spike. According to that, by using different MSO monitoring tools, we have to troubleshoot in that account after we conclude with a conclusion. What is the remedial action for this?

We have different network policies. We are implementing them for securing the network and policy in the enterprise edition in line with the different framework. And, we have like ISO 27001 or ISMS or CID. And, that assures our network is a good provider in terms of external or internal network, and different procedures are adopted for setting up the policies in line with the guidelines provided by the COBIT framework, which basically enhances. We have to follow the guidelines provided by the COBIT framework.

Yes, server. Scoring an IS server. Being factored, it didn't work in IS server. I don't have IDM, but if I got a chance to work on that, definitely, I will do it on the next step.

ST1 technology is software defined by data network, and different VMs have different commands. Like, in Cisco, we have Cisco DNS and Cisco ACI for different data centers. It actually segregates the control plane from the data plane. In the control plane, they give centralized management flexibility to manage all switches from a single place. We create region-wise or province-wise divisions in a multiregional company or multiregional environment. Suppose we have a data center in location A and an NDR in location B in another region, and for another region, then SD-WAN gives a simplicity or manageability option. We can manage their data frames from a single place by using SD-WAN tools.

The main thing we have to understand first is the criticality of the network. After that, we have to do the ARREST assessment. And after analyzing the ARRIS assessment in FH, we're replacing HSR, hardware protocol with VRP for the device. Actually, HSRP also gives the device wherein we have to move to VRRP. So we plan it accordingly based on our assessment, and based on our assessment, we do the first assessment, then talk with the client, their requirements and their traffic name, and we identify when it's a good time or the best time to do their downtime, and we make one primary switch. In the second switch, we configure the first one and then make it primary. Then we do it for the secondary. And after that, we make both the switches operational.

Not what's been given. Every certification in the IT industry gives everyone a confidence, a bit of accomplishment in terms of their hands-on experience in that technology because that's the OEM or when the vendor is specific, they will learn the nitty-gritty of that technology along with the standard operational procedures. And any certification enhances our ability to understand their system in their way or their technology development, not a general vendor's. That was our hands-on experience and understanding the core.

We have for ITIL version 3, the change management process, we have to first identify the goal we want to achieve after doing the modification. We have to analyze and conduct a risk assessment and develop a hierarchy and a model for how we will do it. First, we have to give a collective view of the system. And then, we have to dissect the system in a small network while analyzing it, and make a work plan.