Arp Proxy – When it comes to multi domain or Inter datacenter communication, minimizing the broadcast traffic between the datacenters is an important scaling requirement. Especially if you are dealing with millions of end hosts, localizing the broadcast traffic is critical to save resources on the network and the end hosts. Resources are bandwidth , …
Interdatacenter broadcast control – ARP Proxy in OTV and EVPN Read More »
DMVPN Point to Point GRE and mGRE – DMVPN spokes can use either point-to-point GRE tunnels or multipoint GRE tunnel interface. Recently, I received a question regarding DMVPN.
VRF-Lite + GRE – I am going to create a new category on the blog which we will discuss together the different technologies,protocols, designs and architecture.
Actually all are the same thing. VPWS stands for virtual private wire service , VLL stands for virtual leased line and EoMPLS stands for Ethernet over MPLS.
What does P router mean in MPLS ? It is used in MPLS VPN networks mostly but can be used with any MPLS application, use case. This is very important node in MPLS, and crucial to understand MPLS.
GRE Tunnels GRE tunnels are by far most common tunnelling technology. Very easy to setup, troubleshoot and operate. But in large scale deployment, configuring GRE tunnels become cumbersome, because GRE tunnel is a point to point tunnel. GRE Tunnel Characteristics • GRE tunnels are manual point to point tunnels. Tunnel end points are not automatically derived. Network …
GRE Tunnels – Generic Routing Encapsulation – Use Cases Read More »
Introduction to VPN (Virtual Private Network) Let’s start with the definition. VPN is a logical network and created over shared physical infrastructure. Shared infrastructure can be private such as MPLS VPN of a Service Provider or over the Public infrastructure such as Internet. There are many concepts to understand VPN in detail but in this article I …
Should I use Cisco OTV for the Datacenter Interconnect? This question comes from not only from my students but also the companies which I provide consultancy.
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