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OSI Model


OSI Model Concepts


  • Layer 1 - Physical
  • Layer 2 - Data Link
  • Layer 3 - Network
  • Layer 4 - Transport
  • Layer 5 - Session
  • Layer 6 - Presentation
  • Layer 7 - Application

IPv6 Addressing

Understanding IPv6 Addressing

Larger address space
The main advantage of IPv6 over IPv4 is its larger address space. The length of an IPv6 address is 128 bits, compared to 32 bits in IPv4. The address space therefore has 2128 or approximately 3.4×1038 addresses

Top Network Management Tools in 2014

Top Network Management Tools in 2014

1- Solarwinds Network Performance Manager 10.5
Solarwinds is a heavyweight in the network-monitoring world, and for good reason. For years, Solarwinds NPM has provided all-round monitoring capability. With the release of NPM 10.5, Solarwinds has dropped the “Orion” product branding (it’s now officially ‘Solarwinds Network Performance Manager’ or ‘NPM’) in addition to stepping up the scalability of their game. NPM 10.5 has several new features and many improvements.
NPM 10.5 can handle basic SNMP monitoring and alerting just like always. New features include VMware & Hyper-V monitoring; and ConnectNow, an automated network mapping tool. ConnectNow appears to be based on the old LanSurveyor tool, but now nicely integrates into NPM. Improved historical trend reporting is also a welcome change. And, a redesigned UI rounds out the list of improvements.

Top 15 Best Network Monitoring Software Tools

Top 15 Best Network Monitoring Software Tools

The network monitoring tools used to monitor the entire network devices and services constantly and it notifies the Network Administrators if any network devices or services effected (any Node or Links down and services affected with high utilization).