Friday, February 27, 2026

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TEK@link

efficiency of innovation

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Multicast

multicast in contrast with unicast is a way by which a source server (of traffic) sends casts multicasts or broadcast to a groupe of clients wishing to receive this traffic and in an optimal way of distributing (instead of sending the same trafic unicast multiplied to each client of the group)

Multicast Routing: Hold ASM For A Moment, Let’s Do SSM!… Part 4/6

dexterd06 mins

In this blog, we introduce SSM way of multicasting. Introduction and definitions This post is a part of a serie of post about Multicast operation from the most basic setup to a much complicated one (scenario that include more routing and receiving options, etc.). We will explore the operation of SSM (Source Specific Multicast) in…...

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Multicast Routing: From The Source… Part 3/6

dexterd05 mins

In this blog let’s study from the source multicast routing Introduction This blog is a part of a serie of articles about multicast routing: Previously, we’ve introduced multicast routing and PIM protocol operation in dense mode. In this blog, we’ll check the operation PIM multicast routing protocol from the source perspective. The lab setup The…...

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Multicast Routing: PIM dense… Part 2/6

dexterd05 mins

In this blog let’s study PIM dense multicast routing. Introduction This post is a part of a serie of posts that introduce the operation of multicast routing: We explore in this post, the operation of PIM multicast routing protocol in the by default operation mode PIM Dense mode. The idea is very simple: flood the…...

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Multicast Routing: A Step By Step… Part 1/6

dexterd05 mins

In this post we review a basic multicast routing operation, step by step using output from routers console and traffic packet capture (using wireshark). Introduction This blog is a part of a serie of blogs about multicast routing: How does multicast work In IPv4, multicasting servers use class D range of addresses: 224.0.0.0-239.255.255.255. Some addresses…...

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Multicast Routing: RPF… Part 6/6

dexterd05 mins

In this blog, we study RPF operation. Introduction This blog is a part of a serie of blogs about multicast routing: Test network In our test network RPF in action At R2 A “show ip interface brief” shows Digging into the interface tunnel0 details The tunnel was created by PIM process to join the RP…...

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Multicast Routing: Rather Than Dense, Sparse It And Let’s Meet At Rendez-Vous Point… Part 5/6

dexterd05 mins

In this post let’s detail the operation of PIM (Protocol Independent Multicast) in sparse mode. Previous posts tackled the operation of PIM dense mode. Let’s recall that PIM is the multicast routing protocol that allows PIM routers exchange information needed distribute multicast traffic to receivers. Introduction This blog is a part of a serie of…...

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