networking
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vSphere 6.5
VMware vSphere 6.5 Change vmkernel MTU size
When dealing with VMkernel ports in vSphere 6.5 for most use cases for performance, we want to enable jumbo frames on the vmkernel ports to allow for less fragmentation of the packets for iSCSI, vMotion, and so forth. Let’s take…
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Networking
Use Meraki MX Security Appliance to throttle bandwidth
As I detailed in a previous post, I was able to get my hands on a Meraki security appliance for home lab use. I am still liking the performance and cloud integrated features of the Meraki platform and the ease…
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Networking
GNS3 Beta Packet Capture between QEMU devices
One of the cool things that you can do with GNS3 is packet captures between devices. However, if you are using QEMU (Quick Emulator) Cisco image devices, the current stable release of GNS3 does not support packet captures with QEMU…
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Networking
What happens Same IP Range different subnet mask
I had this question posed to me the other day and it is one of those curiosity questions that you may have asked before or perhaps had a situation that presented itself that gave cause to thinking about this question.…
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Networking
VIRL vs GNS3 vs Packet Tracer which one
Network simulators are a great resources for mocking up certain scenarios, learning, certifications, and plain old “what will happen if I do this in my network” testing. There are are a variety of simulators available out in the wild for…
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Networking
Configure Dell Nseries switch stack
A quick little how to post on creating a stack between Dell Nseries switches. For the purposes of this post, the stack was created using (2) Dell Nseries 4032F 10G switches. There is just a small amount of configuration that…
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Virtualization
Stretch isolated network between multiple ESXi servers
Setting up testing networks and lab networks have been very interesting to me the past few weeks. When you are setting up Dev and Staging environments, the requirements may be to have multiple copies of production environments properly segmented and functioning…
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Windows 10
Windows 10 static address shows 169 address
Today I ran into a weird situation with a Windows 10 VM that I wanted to write up a quick post about. Having provisioned a Windows 10 VM from a sysprepped image, I quickly brought the VM up and started…
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Networking
Cisco VIRL Review
After using Cisco VIRL for a few days now, I wanted to write up a post on my thoughts and maybe even calling it a pseudo Cisco VIRL review of sorts. However, I will keep this post updated as to…
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Windows 10
Windows 10 Networking Powershell commandlets
With Windows 10 we have all the goodness of powershell baked into the operating system and with that, there are several really great powershell commandlets that can be used to take control of the networking components of your Windows 10…
