Verifying 802.1x in enterprise networks
Companies are spending big money on defensive measures against the outside attackers — investing into Next-Generation Firewalls, Intrusion Prevention Systems and Proxies. The inner network, however, was considered safe place, where nothing bad can happen. This understanding has thankfully changed in recent years, especially with rise of…
Routing Protocol Visualization
Routing, one of the most important features in network world. It’s been at least a two decades since most of ISPs rely on Border Gateway Protocol (BGP) in their core, supported by Interior Gateway Protocols (IGP). Local area networks are running and routing with use…
Power over Ethernet endpoints in the IP Fabric platform
Many devices such as IP phones, wireless access points, IP cameras or even small switches may be powered via the data Ethernet cable (by one of the PoE standards). This approach saves a lot of issues with separate electric power infrastructure and eases device manageability…
Spanning Tree analytics with the IP Fabric platform v2.0
The IP Fabric platform is a network engineer’s best friend when performing deep network audits. For example, to verify root placement for overlapping VLANs in a LAN, I would normally need to look through the STP roots, and painstakingly trace L2 links, reconstructing the topology…
Balancing traffic on aggregation channels
Since the invention of EtherChannels, link aggregation bundles provide a convenient way to increase capacity or reliability of network transport paths. How can you ensure that the traffic is properly balanced among links in a bundle and that individual links in a bundle are operating…