Sponsored by Cisco Systems Korea and the Korea Radio Promotion Association.
1) Why the network is important
The lifeline of business and services
Email, collaboration tools, ERP/groupware, cloud, CRM, remote work, video conferencing… everything runs on the network.
Network quality directly translates to "work speed and customer experience."
Failures lead directly to costs and a decline in trust
Network failures erode sales, productivity, and customer trust not only through "connection failure" but also through slowness (latency/loss/congestion).
Especially these days, services are distributed, so a problem in a small section can spread to the entire system.
The Core Battlefield of Security
Attackers ultimately enter through the network and move laterally (lateral movement) within the system.
If network design and policies (segmentation, access control, visibility) are weak, it is easy to be breached even with security solutions in place.
The 'Data Highway' of the Cloud and AI Era
Applications continue to be broken down (microservices), and data is constantly on the move.
The network is no longer just "simple connectivity" but becomes a control point for performance, security, and cost optimization.
2) Why you need to know the latest technology trends
Requirements have changed, so the old design no longer fits
Changes like remote work/branch expansion, SaaS growth, multi-cloud, and AI/large-scale data processing are
no longer just a matter of "increasing bandwidth" like they used to be.If you aren't aware of the trends, you will be slow to determine where the bottleneck is occurring (Wireless? WAN? Security appliances? DC?).
Security threats continue to evolve → The network must keep up
The premise that "the inside is safe" has collapsed, so these days, the trend is moving toward directions such as Zero Trust, Segmentation, and SASE.
If you understand the trends, you can see why such a structure is necessary, rather than it just being a "fad."
Operational methods are shifting from 'manual work → automation/visibility-centric'
As equipment, policies, and clouds become more complex, managing them solely by hand leads to
increased human error and slower incident response times.That is why operational trends such as Automation (IaC/NetDevOps), Observability, and AIOps are important.
To strike a balance between cost (investment) and performance
It's not that "the latest equipment is always the best," but rather that we need priorities that fit our environment.
If you know the trends, when making a decision to adopt them,
whether it is absolutely necessary right now
whether to put it on hold for now and only prepare the design
You can logically determine if there are alternative options.
Career Competitiveness
Knowing the trends expands your "problem-solving scope," which increases your value in the market.
