BGP (Border Gateway Protocol) Quiz,Questions and Detailed Answers
BGP (Border Gateway Protocol) a.k.a Bloody Good Protocol quiz ! I prepared 20 Questions in this quiz for you. Intend of this quiz to provide you the BGP design information. This quiz is part of the BGP Review Questions of my upcoming new version of CCDE Workbook. There will be hundreds of questions in it and […]
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Four of my students passed the CCDE Practical exam in August 2016
Hi everyone, I am glad to announce that below 4 of my students passed the CCDE Practical exam in August 2016 after attending my CCDE Training Program and got their CCDE numbers yesterday. Hashiru Aminu – CCIE (R&S,SP,SEC) & CCDE 2016::14 Anders C. Pedersen – CCIE #42544 (SP) & CCDE 2016::15 Muhammad Abubakar Sidduque – CCIE (SP,DC) & JNCIE & […]
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Hashiru Aminu CCDE Exam Success Story and Recommendations
I took the coveted CCDE Practical Exams on 31st of August, and Thankfully I passed (My CCDE Number is 2016::14), this is my third attempt, the journey started in 2011, Gone through a lot of studies, Boot camps, Ciscolive Sessions, CCDE Mock Lab in Ciscolive, Mentorship from existing CCDEs. My First attempt was in 2014 […]
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Free Webinar : Introduction to Mobile Broadband Technologies
You are invited to attend the one hour Technical Webinar “Introduction to Mobile Broadband Technologies”. The essential Mobile Broadband Concepts and principles are illustrated with the below Agenda 1- The Mobile Broadband Journey (2G,3G,4G,LTE,5G) 2- Meet the Packet Switched Core 3- Training Review This webinar is recommended to : Network Professionals who are interested to […]
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Mobile Broadband – Trending Technologies
For me and for most of Mobile broadband professionals, we are used to meeting the Telco Vendors such as Ericsson, Huawei, Cisco, Nokia, etc. It was a mind-shift for me personally when I started to meet RedHat, Mirantis, & Vmware as a part of the NFV talks and I was really surprised that a company like RedHat […]
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Evolved Packet Core – Welcome to Long Term Evolution!
As an end user, I am always welcoming the “4G” Signal indicator on my mobile because basically for me this maps to a better Download Speed, good quality VoIP calls (skype, Hangout, Whatsapp, etc) , better Streaming, and HD Videos. This article is all about the “4G” indicator. I am discussing the Evolved Packet Core together with […]
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IS-IS level 1, IS-IS Routing Protocol Levels
What is IS-IS Level 1 ? Why IS-IS level 1 is used ? What are the IS-IS levels ? What is the corresponding Area type in OSPF ? IS-IS Level 1 is also called as IS-IS Level 1 sub domain. IS-IS is a link state routing protocol, similar to OSPF. You can read detail comparison […]
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What is MPLS tunnel label and why it is used ?
In networking we use many times different terms to define the same thing. MPLS tunnel label or transport label are just two of those. Not only transport and tunnel labels but also other terms are used to define the same thing which these labels provide. Let me explain first why and where MPLS tunnel label is […]
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PS Core Network Concepts
Most of the educational documents related to PS Core Network start with Call Flows. Attach Call Flow, PDP Context, Paging, etc. Basically that was my problem when I started working in PS Core because the Call Flows include a lot of messages which in turn include a lot of parameters and Information Elements so starting with […]
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PS Core Network Concepts
Most of the educational documents related to PS Core Network start with Call Flows. Attach Call Flow, PDP Context, Paging, etc. So, Basically that was my problem when I started working in PS Core because the Call Flows include a lot of messages that in turn include a lot of parameters and Information Elements so […]
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Core Network Architecture in 3G Mobile Networks
Core Network Architecture in 3G Mobile Networks – Most of the Mobile Broadband Networks worldwide are currently delivering Data Services based on 3G & 4G Technologies. Although 4G/LTE is widely deployed globally but still there are countries and operators running 2G/3G with relatively convenient Data rates to the market demands. In this article, I am […]
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Mobile Broadband Ecosystem
Mobile Broadband… You might have heard this term before, possibly in an ISP environment. The term has always represented a name of a department within a mobile operator or a vendor organization. It is always there in profile description for telecom professionals. It is everywhere actually when it comes to a certain ecosystem or framework that delivers Internet Service […]
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What is flow-based load balancing ?
Flow-based load balancing is used mostly in layer 2 networks, although in Layer 3 routing, packets can be load balanced per packets or per flow, flow-based load balancing is commonly used with the Local area network, datacenter and datacenter interconnect technologies. There are two important load balancing mechanisms in layer 2. Vlan-based load balancing and […]
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What does PE-CE mean in MPLS ?
What does PE-CE mean in the context of MPLS ? What is CE , P and PE device in MPLS and MPLS VPN ? These are foundational terms and definition in MPLS. MPLS is one of the most commonly used encapsulation mechanism in Service Provider networks and before studying more advanced mechanisms, this article is […]
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CCDE July 2016 Onsite Bootcamp in Las Vegas
I am glad to announce that next bootcamp of this year will be on July 2016 in Las Vegas , right after Cisco Live. Last day of Cisco Live will be the first day of my CCDE class. Extend your vacation 5 more days, inform your company by now, get approval and meet me there […]
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More network design resources are available for subscribers !
As a reader of this blog, you can access all of the posts on the website for free. But if you don’t know yet, this website has a membership area. When you become a member you get access to 50+ hours network design videos which will help you in Cisco CCDE exam as well as real-life […]
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BGP As-path prepending – Use cases, Alternatives and Challenges
BGP As-path is a mandatory BGP attribute which has to be sent in every BGP message. BGP as-path prepending is one of the BGP traffic engineering methods which will be explained in detail throughout this post. Outline: What is BGP As-path attribute ? Why BGP as-path attribute is used ? What is BGP as-path prepending […]
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Is IPV6 Dual-Stack really a best method for IPv6 design ?
There are mainly three IPv6 transition methods; Dual-Stack, Tunnelling and Translation. Careful engineers can understand the difference between IPv6 migration and IPv6 transition. All of these three technologies are used to bring IPv6 protocol capabilities in addition to IPv4, they are not migration mechanisms. Migration means removing IPv4 completely and running only IPv6 only in […]
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