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MulticastJanuary 27, 2022

BIER - Bit Indexed Explicit Replication

BIER is Bit Indexed Explicit Replication which is the newest proposal for IP Multicast. Although I say IP Multicast, of course, it works on MPLS networks as well. You can...

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Basic NetworkingJanuary 27, 2022

What is reliability in networking?

I will provide the answers to these questions with examples in this post. Reliability is within a reasonable amount of time, which depends on the application type and architecture, delivering...

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Basic NetworkingJanuary 27, 2022

Be careful when you use STP and HSRP together!

In the networks, we don't have only single protocol. There are always many protocols and their interaction/synchronization is important. Otherwise, blackholes, routing or switching loops can occur or at least...

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Transport NetworkMarch 16, 2021

Carrier Ethernet – Definition | Service Types | Requirements

Carrier Ethernet is an attempt to expand Ethernet beyond the borders of Local Area Network (LAN), into the Wide Area Networks (WAN). With Carrier Ethernet, customer sites are connected through...

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CertificationsMarch 16, 2021

Some recommendations for the network engineers!

In this post, I will share many network engineering blogs which will be very beneficial for network engineering and for those who want to learn more about network design. Almost...

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DefinitionsAugust 8, 2020

Integrated Services QoS - Hard QoS

Integrated Services QoS - Hard QoS is first QoS approach, but currently we are not using. At the end of this post, you will know what is Integrated QoS,...

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Best Practices in Network DesignAugust 7, 2020

Four necessary steps in routing fast convergence

When it comes to fast convergence, first thing that we need to understand what is convergence? Convergence is the time between failure and the recovery. Link, circuits, routers, switches all...

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Best Practices in Network DesignAugust 7, 2020

VLAN, VTP, and The Trunking Best Practices

Vlan, VTP and Trunking are most fundamentals yet important topics in Layer 2 Networking. I explain this topic from design, theory and hands-on perspective in my CCIE Enterprise Infrastructure Training....

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BGPAugust 7, 2020

Autonomous System Provider Authorization BGP Security

Autonomous System Provider Authorization - ASPA is a new approach for the Path Validation in BGP Information Security. Only Path Validation Standard in IETF is BGP SEC which is specified...

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DefinitionsMarch 19, 2020

What is Internet Exchange Point, IXP Best Practices and IXP Participants?

IXP is a layer 2 network where multiple network entities meet, for the purposes of interconnection and exchanging traffic with one another. Internet Exchange Points start with a single Layer...

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Basic NetworkingJanuary 20, 2020

GPON vs. Traditional Ethernet Architecture

GPON (Gigabit Passive Optical Network) is used to reduce the number of active switching nodes in the network design. Network Design Best practice in Campus networks and many Datacenter networks...

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IGPJanuary 20, 2020

IS-IS Design Considerations on MPLS backbone

IS-IS Design - Using IS-IS with MPLS require some important design considerations. IS-IS as a scalable link state routing protocol has been used in the Service Provider networks for decades....

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