Recovering from Catalyst 3850 Boot loop after IOS upgrade

Just to share my experience when working on an IOS upgrade for the Cisco Catalyst 3850 Switch and encounter a IOS-XE installation corruption. Logs below is the actual IOS upgrade process which it has indicated a successful installation of the new version Switch#$stall file flash:cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin Preparing install operation ... [1]: Starting install operation [1]: Expanding …

Building INE CCIE RSv5 IOSv All-in-One vRack

INE Logical Topology (AIO) While on my previous post i have discuss building the INE Topology using IOSv (Cisco Virtual IOS) on VMWare Workstation/Player, One of my friend has suggested; Why not build it all on a single Virtual Machine which make sense as it make it portable and could be easily migrated to any …

Building INE CCIE RSv5 topology using Virtual IOS (IOSv)

Building INE CCIE RSv5 topology using Virtual IOS (IOSv) We will build the INE RSv5 Topology using in Virtual IOS (IOSv), Since IOSv only supported routing we will only focus on that part and because how the INE topology has been setup switching part is not really needed on most of the routing labs. Physical …

Cisco Etherchannel Mode

Etherchannel is useful in a scenario which you have need to have additional bandwidth particularly between switches hosting servers; On this page i will provide an example on three (3) Cisco Etherchannel modes Note: All interface need to match the following to successfully join the Etherchannel Speed Duplex Medium 3 Cisco Etherchannel Mode Static Cisco …