Fiber optic link damaged
1. Symptoms It’s the weekend, and I’m planning my holiday when I receive a call from a bank reporting a network outage at…
Category: Network analysis
UPS Power Supply Filter Quality Decline, Grounding Circuit Fault, Excessive Harmonics Entering the System, Resulting in Slow Network and Data Errors
A securities firm’s trading issues were traced to UPS harmonics problems and grounding loop interference, disrupting real-time data and trading.
Three-category cable imitates a Category 5 cable, plus a network card error. After the upgrade, the speed is slower than before the upgrade
Upgrading to 100 Mbps caused a slow internet connection due to counterfeit cables and network cards. Reverting to 10 Mbps resolved issues temporarily.
Five Ways to Fix Internet Connection Issues
Network is essential for daily computer usage, be it for work or entertainment. However, due to software and hardware instabilities, we may encounter…
Troubleshooting TCP Retransmissions with Wireshark
1. Viewing TCP Connection Information with Wireshark The process of establishing and communicating through TCP connections is undoubtedly well-known to you. You can…
Packet Analysis Tools
Here’s a concise summary with the requested keyword:Explore packet analysis tools like tcpdump, Wireshark, Scapy, CloudShark, NetworkMiner, and Netdude, offering powerful features for…
Packet Analysis Resources
SANS SEC 503 is a top choice for in-depth packet analysis and security. Explore resources like Ax3soft, Wireshark tips, and blogs for deeper…
Network Baselining
A **network baseline** is critical for troubleshooting network slowness, offering a reference of normal traffic patterns to detect anomalies in site, host, or…
Internet Control Message Protocol(ICMP)
Internet Control Message Protocol (ICMP) is the utility protocol of TCP/IP, responsible for providing information regarding the availability of devices, services, or routes…
Transmission Control Protocol
TCP ensures reliable data delivery by using a handshake and teardown process. Source Port enables unique communication, chosen randomly within ephemeral ranges.