I've been meaning to write a brief entry about careers in IT. After reading Ethan's CCIE vs Experience and First Job … [Read more...]
DLSw+ Performance
Just days before 2012 arrives and heralds in the Mayan apocalypse, I thought I'd do something ridiculous. Like shoot … [Read more...]
SQL*Net (a.k.a Oracle TNS) and Firewalls…
Most vendor’s firewalls have a SQL ALG that handles SQL*Net traffic. They listen on TCP port 1521. SQL*Net is based on … [Read more...]
More Open Flow Symposium Notes…

1. OpenFlow and standards. "Laws, decrees, edicts, ordinances, writs will shower down upon the poor people like … [Read more...]
Secure Multi-Tenant VMWare, vGW, and VLAN Normalization

Yesterday I did some lab work with an SE from Juniper with their hypervisor-based FW solution, vGW. As a virtual-networking … [Read more...]
“Virtual-Networking” Is as Meaningless a Term as “Cloud” Now.
With so much virtual-networking stuff going on these days, its worth taking a step back and trying to understand what the … [Read more...]
More OpenFlow Thoughts… Then I’m Done, I Promise.

Lets get straight into it. Below is a diagram depicting a hypothetical (and entirely realistic) OpenFlow network. I … [Read more...]
Big Switch Network, OpenFlow, and Virtual-Networking
There's been a lot of movement happening lately under the "Virtual Networking" moniker. I sat down this morning and thought … [Read more...]
Providing DNS/DHCP in a Multi-Tenant Environment

In this basic design, we have a multi-tenant/multi-security-zone environment that we wish to provide DNS/DHCP services to. … [Read more...]
Extending Private Networks Into Your DataCenter

So you have customers out in the world that have private networks. Most of them have some kind of private VPN service from … [Read more...]
Internet-as-a-Service in an MPLS Cloud

In this post we will look at an "Internet-as-a-Service" type solution in an MPLS infrastructure. This is an all Juniper … [Read more...]
OpenFlow and “Virtual-Networking”
[This is an old article... You might be looking for my (slightly) more informed and updated opinion of OpenFlow here.... and … [Read more...]

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