July 2020

INTRODUCTION Cisco Nexus 3000 Series Switches are designed for data center top-of-rack deployments by providing 24 to 128 ports offering flexible connectivity, high performance, and a comprehensive feature set. It usually runs on multiple versions of OS images including 6.2a, 6.3a, 6.8, 7.3 and many others. Figure 1: Nexus 3000 series switch TFTP (Trivial FTP), […]

Ping Plotter This is a tool used by the RENU community to troubleshoot network issues. Once an institution is facing problems they are prompted to share their results with the NOC for interpretation. The big question is do you understand these graphs. This write-up covers the basic features of the graphs and their interpretation. You\’ve

Optical Bypass Switches A bypass switch (or bypass TAP) is a hardware device that provides a fail-safe access port for an in-line active network device such as an intrusion prevention system (IPS), next-generation firewall, network switch etc. if the device loses power, experiences a software failure, or is taken off-line for updates or upgrades, traffic can no longer flow