Author Archives
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CSR1000v on GNS3
It has been quite some time since the Cisco’s Cloud Services Router CSR1000v was publicly released. CSR1000v is a virtual router or in other words it run’s the IOS software inside a Virtual Environment (in a Virtual Machine), and that’s… Read More ›
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Internal VLANs
All of us or most of us are aware of the famous VLAN types, the Standard and Extended VLAN’s, which to some extent makes sense. The Standard VLAN’s have a range starting from 1 up to 1005 including the last… Read More ›
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Transit AS with no full-mesh BGP
This time I will try to explain how to achieve passing the Transit traffic without affecting our internal domain of having all the externall routes, at least from the Control Plane point of view, because the Data Plane traffic however… Read More ›
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QoS Notes
Some personal notes about my on-going QoS studies, as already explained on earlier posts this notes will be updated all the time as I study deeper on the subject. QoS Models: 1) Integrated Services (IntServ) 2) Differentiated Services (DiffServ) IntServ… Read More ›
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Dynamic Multipoint VPN – DMVPN
Dynamic Multipoint VPN is a technique and answer to the huge increase of Enterprise or Corporations remote sites or branches connecting to the HQ offices while in the same time maintain low costs (no need to purchase MPLS VPN services… Read More ›
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IPv6 notes
This topic will be updated with additional notes all the time.. – 128 bit hexadecimal address format. – 16bit every field. – 8 fields totally. – Global Unicast addresses (similar to ipv4 public addresses) – Link Local addresses (are used… Read More ›
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MPLS VPN notes
I use this personal notes for my own study purposes, this method using bullet-points is what makes me comfortable about the topics I study, but the same doesn’t mean for you because everybody has his own method of studying. More… Read More ›
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CCIE R&S v5.0 Announced
As we were expecting, the CCIE R&S v5 was officialy announced this week by Cisco. For some this might sound like a hammer hit in the head, but looking from other perspective sooner or later this was expected, the old… Read More ›
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TCPdump a powerfull mechanism in Troubleshooting
Being involved in different kind of technologies nowadays is inevitable, especially when you work in Data Center’s, and when I say it, I mean Big Data Centers. Last week I was trying to figure out a problem that occurred to… Read More ›
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T-shoot passed and officialy a CCNP
As you might see I passed the T-Shoot exam on August the 31 and I can proudly say that this exam leads me to a very well respected certification of Cisco, the CCNP. It’s been a journey of at least… Read More ›
