vSphere Web Client – How to Enable CDP / LLDP
A quick few steps will enable the vSphere Distributed Switch to participate in LLDP conversations. Configuration: vSphere Web Client > Networking. Drill down and select the DVS. Click Manage. Click … Continue reading
Troubleshooting Invalid Virtual Machines
##Troubleshooting Invalid Virtual Machines## Virtual machines can show up as invalid if the datastore UUID changed due to resignaturing *) Try to remove/re-add the VM to vCenter inventory, VM needs … Continue reading
Technology Fundamentals – RFC 5424 The Syslog Protocol
SOME HISTORY The protocol is originally defined in RFC 3164 “The BSD syslog Protocol” written by Eric Allman August 2001. RFC 3164 is now superceded by RFC 5224, written by Rainer … Continue reading
ICSNS – MDS Product Family Overview
Cisco MDS 9100, 9200 Series Multilayer Switches MDS 9148 Gen-3, 48 2-,4-,8-Gb/s ports. Lic 8 port increments; 16 VSAN, VOQ, 4 port group -128 BB credit; 32 BB credit per port (125 … Continue reading
vSphere 5.1 Networking Improvements – Network Health Check Improvements
In my previous post I mentioned the welcome additions to the esxcli. Also very much welcomed are operational improvements to the VDS and to the troubleshooting toolset. In this release, … Continue reading
Exciting additions to esxcli with 5.1 plus found an oddity with esxicli maintenanceMode.
In esxi4.1 – you can catch the beginnings of esxcli The name space is greatly expanded en esxi5.0 showing true commitment by VMware to its standardization going forward. The update … Continue reading
CCIE-RS GOLDlab ASET CCIE Lab 1
Got a free moment to play around on Cisco.com/PEC - cranked up the lab CCIE RS-FOCUS1 . Focused on layer two concepts. “This is an ASET Routing and Switching “focus” … Continue reading
esxcli namespace tree
esxcli esxcli command list !– full list of commands is printed Primary group in the esxcli namespace, designated with @ in the tree – fcoe – hardware – iscsi – … Continue reading
Safely upgrading an IOS image (IOS 15.0x used as Example)
Easy as pie! Using a recent upgrade to 15.0(1)SE2 as an example. Prepare for the upgrade: + Identify the image feature set needed: run the command # show version + … Continue reading
