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What Is ?

Software-Defined Networks .. A Primer

SDN, Software-Defined Networking, the trending technology that some friends/colleagues of mine like to refer to it as “Still Does Nothing”. Let’s see if it does some thing. SDN has been a market hype for few years now.  Out of laziness, I ignored it in the beginning then I had to …

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What is MTU?

MTU stands for Maximum transmission unit, which is the maximum packet length that can be sent on an egress interface toward a destination. MTU is an attribute of the egress interface and is typcially considered over a full path from the source to destination. MTU size differes from one media …

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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 …

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IPv6 Tutorial: The overview

I will start from the beginning; two weeks ago I wrote a post claiming that IPv4 is depleting and IPv6 is coming soon; and since we are considering deploying IPv6 soon in our network, I thought it might be useful to write about IPv6 migration and transition strategies. Although, this …

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What is MPLS?

What is MPLS? MPLS stands for Multi-protocol Label Switching. MPLS is a packet forwarding technology that is capable of carrying any L3 protocol and here comes the word multi-protocol. MPLS is capable of tunneling L3 packets inside the MPLS network using  MPLS labels. The MPLS label is pushed into the …

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