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Wael Osama

What can you learn in 5 minutes a day !

I  believe in minimalism and what small focused actions can make for a person and small steps is what Juniper learning bytes is all about. Learning bytes is an online learning resource launched last year by Juniper education services organization as a free service. The nice thing about the learning bytes is that they are focused, short and concise videos that give you a a quick idea about a certain technology, feature or configuration in about 10 minutes  or less and they are created by Juniper’s educational services team right to you. Here is a good byte, not just because my …

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DHCP client testing tool

DHCP is vastly growing in service provider networks for broadband subscribers, I had the chance to work lately with a some of these setups. The protocol is really easy to configure for broadband and provide many benefits.  It has lower overhead compared to PPPOE and it is much more suitable for Multicast services. For those of you who are working with subscriber management, I know sometimes you need to do quick tests to verify new configurations or may be to do some stress or scalability tests. Traffic generators are  more suitable for stress and scalability tests but sometimes I really …

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Few ways scripting can keep you sane

C’est la vie, it has been almost a year since I posted on the blog, a year full of change,  but here I am kicking up again with this simple short post about how scripting could save you time and effort on daily basis. I know most of you might be using those free or commercially available applications to manage your daily work and they are all great; and I don’t want to convince you of reinventing the wheel but I am  talking here about higher level of control over your very own, tailored to your specific needs tools. OK, …

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BGP Attributes List

BGP Attributes are pieces of information that a BGP router attaches to describe different prefixes included in it’s BGP update messages. There is a variable sequence of BGP attributes in every update message except for those that carries only withdrawn routes. Each attribute is a TLV that consists of attribute type, attribute length and attribute value. Each attribute type consists of two octets, one for flag and the other is the type as described briefly in the following section. BGP attributes have different distinctive types that defines how routes are going to use and propagate a certain attribute to it’s …

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The Forgotten skill of technical writing

It’s a beautiful sunny day that puts a big smile on my face and I want to share it with you, so please put a big smile on your face now and before you continue. Your smile will make my day even brighter. OK, back to our post but keep smiling 🙂 If you are reading my blog then you are related to networking one way or another, and if you are related to networking then most probably you write technical documents and this means this is for you. In our daily lives as network engineers we involve in technical …

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IPv6 Tutorial: IPv6 Unicast Address

To refresh our memories, we started our IPv6 tutorial  with an overview then we moved to IPv6 addressing in general and in this post I am moving deeper into IPv6 addressing types. As promised I will keep things simple and clean for you and for me, so let’s begin. Generally speaking IPv6 unicast addresses play the same role unicast addresses used to play in IPv4 networks. There are plenty of different IPv6 unicast types this post will focus on four of them. Global unicast address: Global IPv6 unicast addresses are equivalent to the public IPv4 addresses, this means they are …

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