Tag Archives: security

Spirent Avalanche NEXT – Making Network Testing Approachable

During the week of Network Field Day 6, Spirent announced the Avalanche NEXT product line. Our first NFD6 session was at Spirent’s office in Sunnyvale.

Last time I used Spirent products (admittedly about 10 years ago), the interface was a complex, clunky Windows application. You had to hand-craft frames that would have (at best) a very predictable value iteration in various packet fields (increase a payload field by “1” or “2” per packet). Frankly, this didn’t work well. TCP sessions didn’t work at all, and simulating more than a couple flows simultaneously was so time-consuming that it had no value. You could test raw throughput, but nothing (helpful) above layer 3.

While I realize that Spirent’s products have evolved in the interceding decade, the introduction of the Avalanche NEXT brings a lot of changes.

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Express Setup is BAD; or, The Importance of Physical Security and Good Configuration

Cisco Catalyst switches include a feature called Express Setup which is designed to simplify the configuration process for users that don’t spend their lives at an IOS command prompt. A laudable goal, but the way the feature works brings with it some serious consequence.

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