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One of our engineers wanted to get debug information about ISAKMP after a system reboot but found it was difficult to login quickly enough after the reboot. He found a [...]

Follow-on to the prior blog entry titled “Understanding Network Redundancy” The second theme in network redundancy design is the desire to make the most efficient use of the network.  Some [...]

I am regularly surprised by network redundancy designs that are either overbuilt or underbuilt.  There seem to be two major themes that drive these designs.  I’ll address the first theme [...]

Brad Reese, who writes for the press release that they have released a new version of their open source routing software, with the claim “The Vyatta software combines router, firewall, [...]

I don't think many people know the history of the Cisco CLI and the impact it has had on the industry.  Other companies are emulating it, as evidenced in recent articles on the topic.  Network engineers typically become experts in the Cisco CLI first, then move to other vendor gear,…

I regularly exchange information with the folks at Chesapeake Netcraftsmen (www.netcraftsmen.net), who often encounter interesting real-world troubleshooting scenarios.  This time it was Rick Burts, who happens to be the top [...]

I’ve found that IP Phone vendors have done a poor job of instrumenting their phones to be remotely monitored and managed.  There are several things that need to be made [...]

Friend and associate Pete Welcher at NetCraftsmen indicates that the new Cisco Press book Definitive MPLS Designs, by Jim Guichard, François Le Faucheur, and Jean-Philippe Vasseur, is an outstanding book.  [...]

I’ve been looking at a number of different reports that would be useful to network administrators.  One that came up in talking with some people about data centers is a  [...]

Network World just did an article on network management of IPv6 in which Netcordia was mentioned. ( Applied Infrastructure blog under

We just announced the NetMRI Event Analysis system, which analyzes syslog and snmp trap events, and is pretty exciting (see Applied Infrastructure blog under

One of the neat things about talking with VCs is meeting really smart people. During one of our meetings we were talking with Mike O’Dell, a long-time friend and associate [...]