Mike Sheldon

Mike has been a leading force in the IT industry helping global corporations transform how they purchase, maintain and upgrade their IT equipment and services. Under his leadership, Curvature grew and expanded its operations, leading to a merger in 2017 with Systems Maintenance Services (SMS). Today, Curvature is a strategic partner to more than 15,000 organizations globally, specializing in the delivery of 24x7 global technical support, advanced hardware replacement and data center equipment under one contract.

Why aren't Cisco software updates free?

When you purchase a Cisco router, say an 1841, you pay your $700 to your local VAR who orders it from Ingram Micro and delivers it to you within in a few weeks. A few months ago it was 15 weeks, but Cisco has dramatically improved...

Confused by 10GbE optics modules?

Over the years of 10 gigabit Ethernet’s existence, there have been numerous different form factors and optics types introduced.  The oldest, XENPAKS, remain very popular as the install base is large, while the newest SFP+ offer a...

Is the Force10 S60 the best "Top-of-rack" switch yet?

Force10 Networks has just announced their latest offering in the crowded field of "datacenter top-of-rack" switches.  Cisco has multiple offerings including the new 4948E (not to be confused with the older 4948-E which is a very...

Why Cisco users need to know Tcl

The following is a guest post written by Jeff Hobbs (pictured), director of engineering for a company called ActiveState. ActiveState offers developer tools for writing, managing and distributing dynamic language scripts written in...

CISCO1921 to replace the very popular 1841

The new CISCO1921 is a replacement for the very popular 1841 .  New licensing and software, (probably) better performance, support for new modules  – it dominates the 1841 and previous generations of branch office routers. The...

Lead times continue to plague Cisco

Or, put another way, When a customer asks for POE, Cisco says… Sorry. Customer says… HP? (see http://www.networkworld.com/community/node/60059) There is no real end in sight for Cisco’s supply chain problems. Customers have been...

HP taking aim squarely at Cisco – and its undervalued partners

Cisco has a vast partner network (some 60,000 worldwide, including 12,000 high-end Certified Partners) and this network accounts for more than 80 percent of Cisco’s product and services revenue ($28B in 2009).  Yet when you talk...

Millions of dollars of Cisco gear, but unaffiliated with Cisco

I am the CEO of Network Hardware Resale, a big Cisco reseller - but unaffiliated with Cisco.  I believe we are politely called "the gray market" within the authorized Cisco world, though I've heard many more unsavory terms used as...

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