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 There is a variable sequence of BGP attributes in every update message except for those that carries only withdrawn routes.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 Importance of Networking

Networking is constantly being promoted throughout a huge range of industries, and is generally being seen as more valuable than ever before. However, all too often, it can be swept under the carpet. Those of us who work with technical industries can be particularly prone to not making the most of our networking opportunities. However, here’s a quick remind of why it can be so important. You may encounter a huge number of people within your current profession that it can be worth keeping in touch with. With most work places offering reliable INTERNET access provided by companies at sites …

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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 writing …

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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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Life Follows a Plan, but the Plan is not Yours !

70 days passed since I wrote my last post about IPv6 Addressing. Long time, however I didn’t feel it. Maybe I even forgot what I was doing here or planning to do, those 70 days actually carried a lot of unplanned events. My last post was on 24th of January and on 25th of Januaray it all started with protesters in Tahrir square asking for justice and equality for all the Egyptians, that was the begining and it ended by me now writing this post from Amsterdam, Netherlands where I currently work. Those revolutionary days had a lot of lessons, …

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Private IP address ranges

IPv4 Private Address Ranges:   10.0.0.0/8 IP addresses: 10.0.0.0 — 10.255.255.255. 172.16.0.0/12 IP addresses: 172.16.0.0 — 172.31.255.255. 192.168.0.0/16 IP addresses: 192.168.0.0 – 192.168.255.255   Private IPv4 internet address ranges are defined in RFC1918 with the motivation to control growth of the internet routing tables and to preserve IPv4 addresses space to extend it’s life. The private ranges defined in this RFC are not routable over the internet and are intended for internal use only in private Internets/Intranets and that means these packets destined to these ranges will not be routable across the internet and should stay within the private network. …

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