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Explicit Tracking of Group Membership and Fast Leave in IGMP

Explicit Tracking of Group Membership and Fast Leave in IGMP

| March 26, 2014 | Reply

  Before I explain what and how explicit tracking of group membership works in IGMP, let me give you a brief introduction to IGMP. A brief introduction to IGMP: Internet Group Management Protocol ( IGMP ) is used by end hosts and routers to exchange multicast group membership information. IGMP has two parts. One part […]

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What is Software Defined Networking (SDN) – Part 2

What is Software Defined Networking (SDN) – Part 2

| December 18, 2013 | 2 Replies

In my previous post, I explained what is Software Defined Networking (SDN). As I wanted to keep the introduction simple, I avoided discussing SDN internals in that post. Now that you understand what SDN is, let us get into other details.   SDN Internals In SDN, sequence of packets exchanged between two end-points is known as […]

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Interview with Liz Burn, Juniper Networks Certification Program Director

Interview with Liz Burn, Juniper Networks Certification Program Director

| November 25, 2013 | 1 Reply

The subject of Juniper Networks certifications is becoming more and more popular here on RouterFreak – just check the post You Don’t Need Cisco to be a Great Network Engineer and Junos Genius: your APP for Juniper Networks certifications. The question many of you have in mind is: why get a Juniper Networks Certification? Is it […]

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What is Software Defined Networking (SDN) – Part 1

What is Software Defined Networking (SDN) – Part 1

| November 13, 2013 | 5 Replies

The whole data communication industry is bullish about Software Defined Networking (SDN). What is SDN? Is it really a game changer? I think nobody knows that for sure because it is still evolving. While there have been some companies which have deployed SDN in their Data Centers, it is still not clear how and when it […]

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Junos Genius: your APP for Juniper Networks certifications

Junos Genius: your APP for Juniper Networks certifications

| October 22, 2013 | 5 Replies

Are you preparing for a Juniper Networks certification? Remember what we wrote some time ago: You Don’t Need Cisco to be a Great Network Engineer. Some of you may have already jumped on the Juniper wagon, as certified Engineers are still in high demand. Just recently the vendor released an interesting app to help all of […]

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An Introduction to LTE

An Introduction to LTE

| July 29, 2013 | 2 Replies

Image courtesy of pakorn / FreeDigitalPhotos.net You just need to step outside to realize how much mobile phones have changed our lives. People have this need to stay connected all the time and new, faster, better performing mobiles are constantly being released. As a consequence we need to increase what we are able to do […]

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Other Recent Posts

Who is a Network Engineer? Job Profile

Who is a Network Engineer? Job Profile

| April 11, 2014 | Reply

A network engineer is a person responsible for the installation, management and monitoring of the computer networks of an organization. The goal of a network engineer is to make sure that the network is operating as expected, providing the best performances and availability. He might work as part of the internal IT team or externally for […]

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TunnelBear: Cuddly or Dangerous?

TunnelBear: Cuddly or Dangerous?

| April 8, 2014 | Reply

There are two kinds of bears: the cuddly, teddy-bear type and the vicious, sneaky bear that will eat you alive if you’re not careful. TunnelBear, one of the biggest players in the freemium VPN market, is a little bit of both. TunnelBear has gotten increased press in the past few months, for which we can […]

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A Look into Web Hosting 2014

A Look into Web Hosting 2014

| March 30, 2014 | Reply

Recent decreases in the cost of disk storage, server hardware, and other Web hosting expenses means 2014 will be a year of expansion for Web hosting services. From offering their customers more storage space for a lower cost, to providing cloud computing services, consumers have much to look forward to in the coming year. Web Hosting Applications As […]

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Comparing HSRP Versus VRRP – Same Thing Only Different?

Comparing HSRP Versus VRRP – Same Thing Only Different?

| October 18, 2013 | 6 Replies

Decisions, Decisions When configuring high availability gateways between multiple routers you only have a couple of options to choose from. If you have all Cisco routers chances are you will be configuring and using HSRP to provide redundancy between your routers. If you have Juniper, Foundry (Brocade), or any another router you’ll most likely use […]

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