Craig Weinhold

Cisco customers have a choice between Application Centric Infrastructure (ACI) and Ethernet VPN (EVPN) for building their data center network fabrics. Since these technologies are thought to be interchangeable, the choice often falls to cultural, political or other “Layer 8” decision-making. But the fabric technologies are, in fact, different in ways both subtle and significant,…

Cisco customers have a choice between Application Centric Infrastructure (ACI) and Ethernet VPN (EVPN) for building their data center network fabrics. Since these technologies are thought to be interchangeable, the choice often falls to cultural, political, or other “Layer 8” decision-making. But the fabric technologies are, in fact, different in ways both subtle and significant,…

Cisco customers have a choice between Application Centric Infrastructure (ACI) and Ethernet VPN (EVPN) for building their data center network fabrics. Since these technologies are thought to be interchangeable, the choice often falls to cultural, political or other “Layer 8” decision-making. But the fabric technologies are, in fact, different in ways both subtle and significant, and…

I’ve recently come across a number of comments from industry experts declaring that 40G Ethernet is dead — that it’s a given for organizations to jump on the 25/50/100G path. Those conclusions are simplistic and misleading. To really get at the heart of this question, organizations need to look at five critical factors. 1. Switch-to-Server or…

As organizations scale up, the demand for security solutions that can amplify and distribute security defenses, like microsegmentation, is also growing. Today, whether your organization is big or small, security is a major priority. Many attack campaigns are broad in scope, not differentiating in whose data or resources are targeted. And a typical perimeter defense…

Most enterprise WANs are built using MPLS VPN service, sometimes using two connections from different providers for diversity and often with Internet VPN for backup. MPLS VPN is easy to order and manage, very reliable and most performance issues can be fixed simply by throwing more money to the provider for circuit upgrades. The chief…