Articles
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Articles:
802.3 Fast Ethernet (100 Mbit/Sec) Model
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Migrating From Ethernet To Fast Ethernet
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The Novell Proprietary Frame Format
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The IEEE 802.3 SNAP Frame Format
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The Ethernet II Frame Format
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Articles:
The IEEE 802.3 Frame Format
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Articles:
Manchester Signal Encoding
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Articles:
IEEE 802.3 Interframe Spacing
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Propagation Delay
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Late Ethernet Collisions
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Early Ethernet Collisions
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Articles:
Introduction to Ethernet Collisions
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Articles:
What is CSMA/CD ?
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Suggested Articles:
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Network Fundamentals
Network Data Transmission
Network data transmission refers to the process of sending and receiving information between two or more devices connected to a network. It is a cr...
Network Cabling
Early Communication Technology - Morse Code and...
We tend to think of digital communication as a new idea but in 1844 a man called Samuel Morse sent a message 37 miles from Washington D.C. to Balti...
Ethernet Protocol, CSMA/CD, Collisions
Integrating Fast Ethernet into 10MB Ethernet Ne...
Now that Fast Ethernet is here, the question becomes, "How do I start using it ?" Integrating Fast Ethernet into existing networks need not be done...
Domain Name System (DNS)
The DNS Protocol - Part 4: DNS Response Message...
The previous article covered the DNS Query message formats. In the article we analysed them in great detail and showed how various options are sele...
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Netflow Articles:
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NetFlow Analyzer: Free Download, Step-by-Step I...
In our previous article we explained how a Netflow Analyzer can help you gain visibility into your user traffic, application traffic and data flows...
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Netflow vs SNMP. Two Different Approaches to Ne...
SNMP (Simple Network Management Protocol) and Netflow are both popular protocols with admins, prized for their ability to give visibility over the ...
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Netflow: Monitor Bandwidth & Network Utilizatio...
Monitoring network traffic & bandwidth usage via Netflow is mandatory for any type and size network. Gaining visibility into user traffic, appl...
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VLAN Networks
Static VLANs
VLANs are usually created by the network administrator, assigning each port of every switch to a VLAN. Depending on the network infrastructure and secur...
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VLAN Networks
The VLAN Concept - Introduction to VLANs
We hear about them everywhere, vendors around the world are constantly trying to push them into every type of network and as a result, the Local Area Ne...
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VLAN Networks
VTP Protocol - In-Depth Analysis
The previous article introduced the VTP protocol, we examined how it can be used within a network, to help manage VLANs and ease the administrative over...
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VLAN Networks
VLANs - Access & Trunk Links
If you've read our previous article The VLAN Concept - Introduction to VLANs then you should feel comfortable with terms such as 'VLAN', 'Sta...
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Routing
OSPF - Part 6: OSPF LSA Types - Purpose and Function...
Our previous article explained the purpose of Link State Update (LSU) packets and examined the Link State Advertisement (LSA) information contained with...
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Routing
OSPF - Part 1: Introduction, OSPF Packet Structure, ...
Open Shortest Path First (OSPF) is a popular routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) worki...
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Routing
Routing Information Protocol - RIP
Routing Information Protocol (RIP) is a distance-vector routing protocol that is commonly used in small to medium-sized networks. It is one of the...
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Routing
OSPF - Part 3: OSPF Adjacency & Neighbor Forming Pro...
This is the thrid article of our 6-part OSPF series (see below) that describes how OSPF routers perform neighbor relationship and adjacency. We’ll exami...
Cisco Routers
How To Fix Cisco Configuration Professional (CCP) 'J...
Our previous article covered how to fix the Cisco Configuration Professional display/window problem where the CCP application is displayed in about one ...
Cisco Routers
Cisco Type 7 Password Decrypt / Decoder / Crack Tool
The Firewall.cx Cisco Password Decoder Tool (see below) provides readers with the ability to decrypt 'Type 7' cisco passwords.
For security reasons, we...
SASE & SD-WAN Networks
Key Features of a True Cloud-Native SASE Service. Se...
Secure Access Service Edge (SASE) is an architecture widely regarded as the future of enterprise networking and security. In previous articles we talked...
Palo Alto Networks
Palo Alto Networks Firewall - Web & CLI Initial Conf...
This article is the second-part of our Palo Alto Networks Firewall technical articles. Our previous article was introduction to Palo Alto Networks Firew...