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DMVPN - Dynamic Multipoint VPN and MPLS VPN are two of the most popular VPN mechanisms. In this post, we will look at DMVPN vs MPLS VPN comparison, from many...
IS-IS is a link-state routing protocol, similar to OSPF. If you are looking for Service Provider grade, MPLS Traffic Engineering support, and extendible routing protocol for easier future migration then...
MPLS Multiprotocol Label Switching is one of the most popular and commonly used technologies in today's Service Provider and Enterprise networks. In this post, we will explain the most fundamental...
Network complexity plays a very important role in network design. Every network designer tries to find the simplest design. What is Network Complexity? Although there is no standard definition for...
BGP Private and Public AS Range: On the internet, we have 2 byte AS Numbers and 4 Byte AS Numbers. In this post, we will explain what are the BGP...
BGP Route Server is used at the Internet Exchange Point to simplify the BGP Peering process. Instead of managing, and maintaining hundreds of Peering sessions in a large Internet Exchange...
EIGRP Stub - It is actually one of the EIGRP Scalability features but also it helps many other things in EIGRP. Also, in this post, we will share a topology...
Carrier-Grade NAT (CGN) is also known as LSN (Large Scale NAT). And in my opinion, it should be called LSN since there is nothing for CGN to be a carrier-grade....
BGP route reflectors, used as an alternate method to full-mesh IBGP, help in scaling. A BGP route reflector cluster is used to provide redundancy in a BGP RR design: the...
Broadband Network - There are many broadband services Service Providers offer to their customers today. As a network engineer, you need to know the most common services and their advantages,...
If you are working in the Operator, Service Provider, or Telco/Carrier networks, you probably heard this term. If you haven't, you need to learn it. To have a great understanding...
What is tier in the first place? If you are dealing with Service Provider networks, you hear this term a lot. But how do we define Tier 1, Tier 2,...