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Openstack Neutron Overview

Openstack Neutron Overview

The Openstack Networking service (Neutron), provides an API that lets you define network connectivity and addressing in the cloud. The Networking service enables operators to leverage different networking technologies to power their cloud networking. ...

Data Center Network Fundamentals

Data Center Network Fundamentals

The following collection of posts will lay out the foundation of understanding basic concepts of data centre network design and explains the role and importance of BGP in the modern datacenter network. We hope that you find them useful. ...

L3 fabric DC -The underlay Network (BGP) -part2

L3 fabric DC -The underlay Network (BGP) -part2

In the previous post, we laid the foundation of L3 fabric DC In this post we will discuss the underlay network which mainly provide IP reachability plus ECMP capability, here BGP would play a role in your DC next to the 3 other that we d...

L3 fabric DC -The underlay Network -Part1

L3 fabric DC -The underlay Network -Part1

In the previous posts we have discussed the classic DC designs and the M-LAG solution. In this post we will cover the basic L3 fabric DC, you might never heard of it or you think that’s a solution for massive scale DC, yes the massive DC i...

TCP Protocol: Slow Start

TCP Protocol: Slow Start

In the last post we explained the basic idea of using sequence and acknowledgement numbers to track how many bytes were sent and received. We also has encountered the term "slow start" and elaborated how TCP uses this concept on the server ...

TCP Protocol: Flow Control

TCP Protocol: Flow Control

In the last two posts here and here, we have discussed how TCP stack initiates a TCP 3-way handshake and create the appropriate Transmission Control Block for the data to flow reliably. We knew that the main function of the 3-way handshakin...

Classic DC and M-LAG

Classic DC and M-LAG

In the pervious post we talked  about BGP in Data Center and how it is a topic of discussion in between the DC and the SP arenas. In this post I will start explaining some classic DC design and laying its shortage which will engage the S...

BGP in the Data Center

BGP in the Data Center

If you think that BGP is a Server Provider (SP) only protocol and is not your business in the data center, then better think again because BGP is coming to your territory. Traditionally for Enterprises and DCs; BGP commonly took part at ...

What is 6PE?

What is 6PE?

6PE is one of the efficient solutions for interconnecting IPv6 islands over an IPv4-only MPLS cloud without needing to drastically change the core network design by having all your Core routers dual-stacked 6PE does not use manual standa...

CCIE SPv4.1 Blueprint Resources

CCIE SPv4.1 Blueprint Resources

The CCIE SP SME team has put a comprehensive list of study resources for the new CCIE SP4.1 blueprint. The complied list is in a spreadsheet designed to help you quickly find what you are looking for by organizing the content according to t...

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