Deep Dive: Configuration Maximums for dVS

Recently I have been thinking about configuration maximums of the current virtual distributed switches.   In the configuration maximum’s document for 5.5 it states the following: – Total virtual network switch ports per host (VDS[…]

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VMware NSX how to firewall between IP’s and issues

The first thing everyone does with NSX is try to create firewall rules between IP addresses.  I consider this a mistake because the DFW can key off a lot better markers than IP addresses.  […]

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Deep Dive: How does NSX Distributed Firewall work

This is a continuation of my posts on NSX features you can find other posts on the Deep Dive page.   My favorite feature of VMware NSX is the Distributed firewall.   It provides some[…]

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Deep Dive: How does NSX Distributed routing work

As a continuation of my previous host How does NSX virtual switch work I am now writing about how the routing works.   I should thank Ron Flax and Elver Sena for walking through this process[…]

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Deep Dive: How does the NSX vSwitch Work

Edit: Thank to Ron Flax, Todd Craw for helping me correct some errors. I have been blessed of late to be involved in some VMware NSX deployments and I am really excited about the technology.[…]

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Design Scenario: Gigabit network and iSCSI ESXi 5.x

Many months ago I posted some design tips on the VMware forums (I am Gortee there if you are wondering).   Today a user updated the thread with a new scenario looking for some advise.[…]

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Deep Dive: Network Health check

vSphere 5.1 introduced one of my favorite new features.  Network health check.  This feature is designed to identify problems with MTU and VLAN settings.   It is easy enough to set up MTU and VLAN’s[…]

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Deep Dive: vSphere Traffic Shaping

Traffic Shaping is all about the bad actor scenario.  We have 100’s of virtual machines that all get along with each other.  The application team deploys a appliance that goes nuts and starts to use[…]

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Deep Dive: vSphere Network Load Balancing

In vSphere load balancing is a hot topic.   As load size per physical host increases so does the need for more bandwidth.  In a traditional sense this was done with etherchannel or LACP.  This[…]

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Deep Dive: Virtual Switch Security settings and Port Binding

Security Settings: Three options are available on a virtual switch.  These settings can be set at the switch layer then overwritten on individual port groups. Promiscuous Mode – This allows the guest adapter to detect[…]

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