At work, we've been getting ready to deploy a few different cluster technologies. One is a set of KVM hosts to offer VMaaS … [Read more...]
Cisco OTV 101 (Legacy Multicast Mode): MAC Learning Process Walk
13 May 2013 by 4 Comments
What is OTV? Overlay Transport Virtualization (OTV) is a Cisco-proprietary protocol suite that allows us to extend Layer 2 … [Read more...]
The Future of F5 Networks: SDN, iRules & Node.js
2 April 2013 by 4 Comments
Unlike some others in the network industry (until lately at least), those dealing with F5 Networks' products are probably … [Read more...]
NetCitadel and Software Defined Security
21 February 2013 by 5 Comments
It's been an exciting couple of weeks in the security realm, with a number of innovative startups appearing. That's … [Read more...]
Network Visibility for Flexible Security Architectures
30 January 2013 by 7 Comments
Inline security appliances are a fact of modern network security architectures. There are a number of compliance drivers to … [Read more...]
Uses of MPLS in the Enterprise and Data Center
15 November 2012 by 7 Comments
MPLS in the Enterprise and Data Center has been a topic of some debate from some of the leading independent bloggers out … [Read more...]
Configuring Mixed-Mode Virtual-Chassis With Juniper EX-Series Switches
13 November 2012 by 1 Comment
Recently I was building a Virtual-chassis with Juniper EX-series Switches. I'm now sharing my experience. Virtual-chassis … [Read more...]
Five Things About Cisco Nexus 5K Control Plane Policing (CoPP)
5 October 2012 by 1 Comment
Let's take a quick look at the control-plane policing services on the Cisco Nexus 5000 series. Almost all of these notes are … [Read more...]
Revenge of the TOE
27 September 2012 by 7 Comments
Recently a colleague and I encountered a very perplexing issue with one of our ASAs. Our team had reports of users … [Read more...]
The Importance of Diagrams When Building a Network
17 August 2012 by 11 Comments
Years ago, I had the opportunity to work with a real network architect. I'll call him Rani Doisman. :) I'm talking about … [Read more...]
July 2012 IETF Update
30 July 2012 by 7 Comments
The IETF is on my mind this week (for pretty obvious reasons). If anyone is in Vancouver, and would like to meet up, send me … [Read more...]
Sayonara 6500, Hello Nexus
10 July 2012 by 8 Comments
If the Swiss army is a Cisco customer, I'm pretty sure the Catalyst 6500 would have been their switch platform of choice, but … [Read more...]
Introduction to Junos – Part 2
9 July 2012 by 9 Comments
In Introduction to Junos - Part 1, we reviewed the basics of Junos configuration with advanced features such as groups and … [Read more...]
Introduction to Junos – Part 1
2 July 2012 by 22 Comments
Perhaps you're curious about Junos, but never had the opportunity to try it. This article is intended for well-seasoned … [Read more...]
Cisco Nexus 5500: Front Panel Port to Internal ASIC Layout From BRKARC-3452
25 June 2012 by 7 Comments
I'm working through a cabling layout for a pair of Nexus 5596UPs that will be used as access layer switches. Some of the … [Read more...]
Recent Comments