Ehsan Ghasisin works on computer and network security and the latest technology to design, implement, and maintain to help companies reduce risk and increase business activity. He has 15 years of experience and a computer and network engineering degree.
Ehsan Ghasisin 14 minute read
Expert Picks
• AI training stalls are rarely caused by failing GPUs. The accelerators are usually idle, waiting on storage, the network fabric, or a single slow node. • Three symptom patterns cover most cases:...
Ehsan Ghasisin 13 minute read
How To | Expert Picks
GPU cluster networking is the scale-out network that connects GPU servers so distributed AI jobs can exchange gradients, synchronize model updates, access storage, and coordinate workloads across nodes....
Ehsan Ghasisin 10 minute read
How To | Expert Picks | Cisco
Counterfeit Cisco transceivers are one of the most under-detected risks in enterprise network infrastructure. They do not throw obvious errors on insertion. On many platforms, they populate show inventory output...
Ehsan Ghasisin 6 minute read
How To | Expert Picks
Bottom Line Up Front (BLUF)Network redundancy isn’t just for large enterprises. For SMBs, it’s the most cost-effective safeguard against downtime and the foundation of SMB network uptime...
Ehsan Ghasisin 6 minute read
Software/License/Protocol | Expert Picks | Firewall
Absolutely. For any SMB with multiple locations, a remote workforce, or heavy cloud app usage, SD-WAN is a strategic investment. It directly cuts high MPLS costs, speeds up cloud performance, and strengthens...
Ehsan Ghasisin 9 minute read
How To | Switch | Firewall
Network segmentation is now crucial in cybersecurity, helping contain threats and prevent lateral movement during breaches. Many IT managers acknowledge its importance but are unsure how to...
Ehsan Ghasisin 13 minute read
Buying Guide | Firewall
Cybersecurity is now a legal requirement for small and midsize businesses (SMBs) and their managed service providers (MSPs). Regulations such as HIPAA, PCI DSS, GDPR, SOX, and NIST set strict data protection...
Ehsan Ghasisin 9 minute read
How To | Expert Picks | Firewall
Minor Access Control List (ACL) errors create major security gaps. Misconfigurations like improper rule order or overly broad permissions are common access control list errors that can expose critical...
Ehsan Ghasisin 6 minute read
Comparison | Expert Picks | Firewall
The Fortinet FortiGate G-Series is the next evolution of the company's firewall hardware, replacing the successful F-Series. Its primary differentiator is a purpose-built FortiASIC architecture...
Ehsan Ghasisin 7 minute read
How To | Expert Picks
High network latency, frustrating application timeouts, and constant user complaints are symptoms of a critical problem: a network bottleneck. These network performance issues demand a professional...
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