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• Building Configuration Policy Checks, Part 3

  Implementing Changes Once you have your network policies defined, see the prior posts Part 1 and Part 2 , then implemented in a configuration policy check, you need a way to correct any non-compliant configurations. An obvious choice for remediation is... Posted May 13 2011, 12:51 PM by tslattery with | with no comments Filed under: compliance, change management, Configuration management, configuration update, configuration policy, config policy, configuration change, configuration compliance, device grouping, device tagging, interface tagging, configuration checking

• Building Configuration Policy Checks, Part 2

  In the prior post, I explained why configuration policies are needed. Now it is time to discuss how to build policies. I like to start with the written policies, because that tells me what was intended. An example is: "All network devices will be... Posted May 04 2011, 01:55 PM by tslattery with | with no comments Filed under: compliance, Configuration management, Configuration Repository, configuration update, configuration policy, config policy, config archive, configuration change, configuration compliance, configuration checking

• Building Configuration Policy Checks, Part 1

  I'm building configuration policy checks for a customer and realized that it would be beneficial to share the design choices and implementation details that I encountered. The tool that I used is NetMRI's Configuration Policy, but the same thing... Posted Apr 28 2011, 03:45 PM by tslattery with | with no comments Filed under: configuration policy, configuration change, configuration compliance, configuration checking

• New Year Resolution: Run a Clean Network

  Welcome to the New Year - 2011! At the start of a new year, there is always talk of new year resolutions. You've seen them in magazines and newspapers: eat healthier food, loose weight, begin an exercise program, tackle the CCIE test, learn a new... Posted Jan 05 2011, 11:24 AM by tslattery with | with no comments Filed under: configuration update, redundancy, interface up/down, interface down, configuration change, HSRP, resilient networks, common problems, redundant interface

• Packet Pushers Podcast

  I did a Packet Pushers Podcast recently with Greg Ferro and Josh O'Brien , talking about the common network problems that we see in operational networks. The list of topics comes from a poster, The Top 25 Network Problems and Their Business Impact... Posted Oct 19 2010, 09:33 AM by tslattery with | with no comments Filed under: Configuration management, Configuration Repository, configuration policy, duplex setting, spanning tree loops, configuration change, configuration compliance, HSRP, default route, black hole route, duplex mismatch, routing black hole

• NCCM: Verify Configuration Changes

  I've been doing a configuration change on over 500 devices of a customer's network, and using NetMRI to install the change was extremely easy. Below is the script that I used, and I thought it would be useful to describe how it works. The overview... Posted Mar 30 2010, 04:46 PM by tslattery with | with no comments Filed under: Configuration management, NCCM, Featured, configuration change