My most recent customer engagement, was to re-use some older hardware as vSphere disaster recovery. The kit includes a EMC Clariion SAN, and two Cisco MDS 9124 switches.
The customer didn’t setup these FC switches, and required a password reset. Which I was happy to do for him, until I realised the Cisco article online is slightly wrong. So below are the steps I took to get the job done.
Password Reset/Recovery Steps
First off stick your console cable into the switch,
1. Power Cycle the Switch and keep pressing Ctrl + C until you see;
2. You then need to find the boot filename, using the “dir” command
loader> dir bootflash:
Continue reading Password Reset on Cisco MDS 9100 Series Fibre Channel Switch
Here I am going through how to setup LACP port trunking for a Synology NAS device using HP Switching.
1. First off get your MAC Addresses of your Synology NAS interfaces you want to configure, these can be found in the DSM web login under Control Panel > Info Center > Network
Continue reading Setting up LACP on Synology NAS and HP Switches
VMware released a free course around Network Virtualization Fundamentals, which maps to the first steps on the ladder for all things NSX. It is also recommended by VMware to take the course before taking on the VCA-NV.
I urge anyone looking into NSX to take this course, you can’t argue with the price after all!!! Secondly, although there are many NSX posts online name, Brad Hedlund has some of the best posts in my opinion.
Check the NSX-Link-O-Rama aswell.
And finally, the NSX Compendium over at Network Inferno
Below are my notes I took whilst going through the course.
- Ports organised into port groups
- Uplinks connect virtual switch to physical network
- Connections to support virtual infrastructure
Virtual standard switches – configuration per host, therefore needs to be replicated exactly to all hosts
- Port groups
- VMkernel Ports
- Uplink Ports
- Policies at virtual switch level can be over-ridden at port group level
- VLAN’s set at port group level and VMKernal Port level only
- No support for things like STP, as virtual switches cannot be connected to one another, nor do they learn MAC addresses.
Continue reading Revision notes from VMware Network Virtualization Fundamentals Course
So in my last post, I looked at how to record the logical information about your IP addresses and switchport locations, making it easier for troubleshooting in the future.
Now lets tackle the big one, how to produce good documentation when diagraming your network.
For this, I am going to use a real world example of a network I audited, and then made a visio diagram. Personally, I don’t believe this is one of the best visio diagram’s I have produced, however it includes a lot of various parts which I think are useful.
So below, you find the original hand drawn diagram as I was tracing cables and devices, and then the final product.
Note: Unfortunately I do not have the Visio file available for distribution used in this post.
Continue reading How to produce good documentation – Part 4 – Diagraming a network
I did it, passed the TSHOOT exam, which means I’m now CCNP Certified. Woop!!!
So the TSHOOT exam itself,
- 3 mutliple answer questions
- 1 Drag and Drop
- 15 support tickets to answer within a simulator
Continue reading Cisco CCNP TSHOOT – Exam Experience