If you have read about any security network topics, you would be familiar with dynamic arp inspection method. Dynamic Arp Inspection prevents man in the middle attack against to arp…

Today, we will use Wireshark to examine packets. There is an interesting scenario that you may encounter. If you capture the 3-way handshake of your traffic, you will see the…

In this post, we will examine a corner case about EVPN-VXLAN of Nexus9k devices. The customer has a specific design between two cities for Active/Passive DC network redundancy. Fortigate firewalls…

In this post, we will go a further step to segment routing. In our previous post, we have expained what segment-routing is and how to build it under IS-IS. Steering…

In this post, we will try to explain Resource Reservation Protocol (RSVP) usage of Arista and its interoperability with other vendors such as Juniper, POC for a service provider of…

Today, we will examine VPWS technology in Arista. Virtual Private Wire Service (VPWS) is based on point-to-point communication in your MPLS environment. There is similar technology whose name is LDP…

Many core engineers are familiar with MPLS technology. As you know, we were using LDP or RSVP protocols with MPLS in order to distribute labels. Routers forward traffic according to…

In this post, we will talk about L3VPN with EVPN-VXLAN in Arista. As you know, especially Service Providers use MPLS to provide L3VPN service. However, you can continue via VXLAN…

Today, I will give real example about python on Arista which we use in one of customer in order to connect two different DC over Internet with EVPN-VXLAN. Careful, it…

In this post, I will mention about a real project which was completed successfully in network design for one of the best online shopping customer in Turkey. In my previous…