In two recent posts, I covered SPAN , for mirroring traffic to a port on a local switch, and RSPAN , for mirroring traffic across a VLAN to ...

I recently wrote a post on configuring port mirroring (SPAN) on Cisco Catalyst switches .  SPAN (switched port analyzer) allows you to mirro...

So you have a network issue.  Or perhaps you don't, but you need to help find the root cause of a performance issue and conclusively sho...

When migrating a VM using vMotion, the migration may stall at 14% and eventually fail with the following error: Migration [xxxx:xxxx] fail...

When configuring a remote access VPN on an ASA, there are times when an external authentication server (RADIUS, TACACS+, etc) is not availab...

When updating ExtremeXOS, it is important to choose your software release carefully.  The newest builds may contain new features that are no...

After working in primarily Cisco or Cisco-esque CLIs, ExtremeXOS can have a bit of a learning curve.  At the time of this post, Extreme Netw...