Blog Posts in 2015
December 2015
- All the Best in 2016! (17 Dec 2015)
- Broadcom Tomahawk 101 (16 Dec 2015)
- Leftover Training Budget? Let Me Help You (15 Dec 2015)
- Running Open Daylight in Production Network on Software Gone Wild (14 Dec 2015)
- CPLANE Networks on Software Gone Wild (11 Dec 2015)
- The Grumpy Old Network Architects and Facebook (10 Dec 2015)
- Featured Webinar: vSphere 6 Networking Deep Dive (09 Dec 2015)
- Should We Use OpenFlow for Load Balancing? (08 Dec 2015)
- Could We Use OpenFlow for Load Balancing? (07 Dec 2015)
- Why Do We Need VXLAN (and What Is It)? (04 Dec 2015)
- Sometimes It’s Not the Network (03 Dec 2015)
- Is Flow-Based Forwarding Just Marketing Fluff? (02 Dec 2015)
- Detecting NAT64 Prefix (01 Dec 2015)
November 2015
- Packet- and Flow-Based Forwarding (30 Nov 2015)
- Fibbing: OSPF-Based Traffic Engineering with Laurent Vanbever (27 Nov 2015)
- Thank you for your trust! (26 Nov 2015)
- Ethernet Checksums Are Not Good Enough for Storage (25 Nov 2015)
- Blogging Rule#1: Be Useful (24 Nov 2015)
- Can You Afford to Reformat Your Data Center? (23 Nov 2015)
- Video: Cumulus Linux Architecture (20 Nov 2015)
- DMVPN Split Default Routing and Internet Access (19 Nov 2015)
- IP over Ultrasound (18 Nov 2015)
- Presentation: All You Need Are Two Switches (17 Nov 2015)
- Junos Fusion: the First Steps (updated) (16 Nov 2015)
- Test-Driven Network Development with Michael Kashin on Software Gone Wild (13 Nov 2015)
- Control-Plane Protocols for Overlay Virtual Networking – the Madness Continues (12 Nov 2015)
- Andrew Lerner on Vendorspeak (10 Nov 2015)
- The Numerous Levels of SDN Reality (09 Nov 2015)
- Video: Control Plane Protocols in OpenFlow-Based Networks (06 Nov 2015)
- There’s a Problem with IPv6 Multihoming (05 Nov 2015)
- 1000 VM per Rack Is Perfectly Realistic (04 Nov 2015)
- Learn to Speak Your Peer’s Language with ipSpace.net Webinars (03 Nov 2015)
- Stretched Firewalls across Layer-3 DCI? Will the Madness Ever Stop? (02 Nov 2015)
October 2015
- Optimizing Traffic Engineering with NorthStar Controller on Software Gone Wild (30 Oct 2015)
- Survey: Vendor NETCONF and REST API Support (28 Oct 2015)
- Is Anyone Using Long-Distance VM Mobility in Production? (26 Oct 2015)
- Video: Simplify Network Configurations with Cumulus Linux (23 Oct 2015)
- Was CLNP Really Broken? (22 Oct 2015)
- Ever Heard of Role-Based Access Control? (21 Oct 2015)
- Why Would You Want to Attend a Classroom Workshop? (20 Oct 2015)
- We Need Product Documentation, not just Glitzy Demos (19 Oct 2015)
- More Features, Improved Lock-In (18 Oct 2015)
- SDN Internet Router Is in Production on Software Gone Wild (16 Oct 2015)
- The Lack of Historic Knowledge Is so Frustrating (15 Oct 2015)
- Sometimes You Have to Decide How You Want to Fail (13 Oct 2015)
- DMVPN Split Default Routing (12 Oct 2015)
- Winston Churchill on IPv6 (11 Oct 2015)
- Douglas Comer on the Future of Networking (08 Oct 2015)
- Get ipSpace.net Subscription while Attending the Rome SDN/NFV Event (07 Oct 2015)
- Building Carrier-Grade Cloud Infrastructure (06 Oct 2015)
- Software-Defined IXP with Laurent Vanbever on Software Gone Wild (05 Oct 2015)
- Designing Active-Active and Disaster Recovery Data Centers (02 Oct 2015)
- What Happens When a Data Center Fabric Switch Fails? (01 Oct 2015)
September 2015
- Response: Firefighters and Fire Marshals (29 Sep 2015)
- Cumulus Linux Base Technologies (25 Sep 2015)
- DHCP Details You Didn’t Know (24 Sep 2015)
- VSAN: As Always, Latency Is the Real Killer (23 Sep 2015)
- Renewing ipSpace.net Subscription before It Expires (22 Sep 2015)
- Response: SDN is eating vendors’ lunch (21 Sep 2015)
- DLSP – QoS-Aware Routing Protocol on Software Gone Wild (18 Sep 2015)
- VMware VSAN Can Stretch – Should It? (17 Sep 2015)
- Why It's Hard to Deploy SDN-Like Functionality Today (16 Sep 2015)
- VXLAN Hardware Gateway Overview (14 Sep 2015)
- Lego Bricks and Network Operating Systems (09 Sep 2015)
- Blessed by Gartner: Stretched VLANs Make Little Sense (08 Sep 2015)
- See You in Bern on September 16th (07 Sep 2015)
- Use nProbe and ELK Stack to Build a Netflow Solution on Software Gone Wild (04 Sep 2015)
- How Complex Is Your Data Center? (03 Sep 2015)
- Private and Public Clouds, and the Mistakes You Can Make (02 Sep 2015)
- Path MTU Discovery Doesn’t Work with IP Multicast (01 Sep 2015)
August 2015
- This Is How You Handle Customer Support Issues (31 Aug 2015)
- Don’t Optimize the Last 5% (30 Aug 2015)
- Must Read: James Mickens on Security (29 Aug 2015)
- Cumulus Linux Data Center Architectures (28 Aug 2015)
- Musing on Nerd Knobs (27 Aug 2015)
- SDN: ONF Is Moving to “Logically Centralized Control Plane” (26 Aug 2015)
- SSL Termination on Virtual Appliances: Another Myth Busted (25 Aug 2015)
- How Long Will that Webinar take? (24 Aug 2015)
- Layer-3-Only Data Center Networks with Cumulus Linux on Software Gone Wild (21 Aug 2015)
- How Did You Learn So Much About Networking? (20 Aug 2015)
- The Biggest Problem of SDN (19 Aug 2015)
- Does Your Favorite Startup Support IPv6? (17 Aug 2015)
- Enterprise IPv6 Adoption Explained (15 Aug 2015)
- Video: What Is Cumulus Linux All About? (14 Aug 2015)
- SDN Will Not Solve Real-Life Enterprise Problems (12 Aug 2015)
- IPv6 and the Swinging Technology Pendulum (10 Aug 2015)
- Published: Designing Scalable Web Applications (Part 2) (07 Aug 2015)
- SDN, SD-WAN and FCoE on Gartner Networking Hype Cycle (06 Aug 2015)
- Can Virtual Routers Compete with Physical Hardware? (04 Aug 2015)
July 2015
- Video: Overview of IPv6 First-Hop Security Challenges (31 Jul 2015)
- Big Flowering Things and Lego Bricks (29 Jul 2015)
- Published: New SDN and NFV Materials (27 Jul 2015)
- Fat Fingers and Other Campfire Stories (22 Jul 2015)
- Reliability of SD-WAN and Hybrid WAN Solutions (21 Jul 2015)
- Explaining the Pervasive Kludgeitis (20 Jul 2015)
- Is Linux TCP/IP Stack Really That Slow? (19 Jul 2015)
- Must read: Big Flowering Thing (17 Jul 2015)
- Explaining the Mysteries of WiFi and Internet ;) (15 Jul 2015)
- Can You Avoid Networking Software Bugs? (14 Jul 2015)
- Interested in Mesh Wireless Networks? (13 Jul 2015)
- Why Should I Care About Networking? (10 Jul 2015)
- Some Ridiculous SD-WAN Claims (09 Jul 2015)
- Must Read: IPv6 at Swisscom (08 Jul 2015)
- Routing Protocols and SD-WAN: Apples and Furbies (06 Jul 2015)
- Business Case for SD-WAN (02 Jul 2015)
- Save the Date: Designing Infrastructure for Private Clouds Workshop in Switzerland (01 Jul 2015)
June 2015
- Project Calico: Is It Any Good? (30 Jun 2015)
- LDP Label Allocation Revisited (29 Jun 2015)
- Software-Defined Hardware Forwarding Pipeline on HP Switches (26 Jun 2015)
- More on Centralized Control and SDN (25 Jun 2015)
- Webinars in 1H2015, and a Look Forward (24 Jun 2015)
- Software-Defined WAN:Well-Orchestrated Duct Tape? (23 Jun 2015)
- IPv6 Is Here, Get Used to It (22 Jun 2015)
- Just Out: Metro- and Carrier Ethernet Encryptors Market Overview (20 Jun 2015)
- Open-Source Network Engineer Toolbox (19 Jun 2015)
- Another Spectacular Layer-2 Failure (18 Jun 2015)
- SDN/OpenFlow/NFV Workshop: Frequent Questions (17 Jun 2015)
- Centralized Control Is Not Centralized Control Plane (16 Jun 2015)
- Industry Thoughts in 30 seconds (15 Jun 2015)
- This Blog Post Wasn’t Properly Scheduled (13 Jun 2015)
- NAPALM: Integrating Ansible with Network Devices on Software Gone Wild (12 Jun 2015)
- Should I Use a Traditional Firewall in Microsegmented Environment? (11 Jun 2015)
- Do We Still Need Subnets in Virtualized Networks? (10 Jun 2015)
- Published: Designing Scalable Web Applications (09 Jun 2015)
- So You Need ISSU on Your ToR switch? Really? (08 Jun 2015)
- Video: Scale-Out NAT (05 Jun 2015)
- Vertically Integrated Musings (04 Jun 2015)
- Video: Implementing VLAN-aware Bridge with OpenFlow (03 Jun 2015)
- Turn Your Training or Presentation into a Story (02 Jun 2015)
- Case Study: Scale-Out Cloud Infrastructure (01 Jun 2015)
May 2015
- Network Monitoring in SDN Era on Software Gone Wild (29 May 2015)
- Don’t Be Overly Enthusiastic about Vendor Claims (This Time It's Brocade) (28 May 2015)
- Link Aggregation in OpenFlow Environment (26 May 2015)
- vSphere 6 Networking Deep Dive Webinar Is Complete (25 May 2015)
- Segment Routing 101 on Software Gone Wild (22 May 2015)
- Stupidities of Switch Programming (written in June 2013) (21 May 2015)
- Do We Need NAC and 802.1x? (20 May 2015)
- Scaling OpenStack Security Groups (19 May 2015)
- On I-Shaped and T-Shaped Skills (18 May 2015)
- Build Your Development or Lab Environment with Ravello Systems (15 May 2015)
- Reinventing CLNS with L3-only Forwarding (13 May 2015)
- Presentation & Video: Quo Vadis, SDN? (12 May 2015)
- Do We Need Network Programmability? (11 May 2015)
- OpenStack Got Full IPv6 Support (10 May 2015)
- OpenFlow in HP Campus Solutions on Software Gone Wild (08 May 2015)
- ARP Processing in Layer-3-Only Networks (07 May 2015)
- Video: End-to-End High Availability in Dual Stack Networks (06 May 2015)
- Replacing Central Router with a Next-Generation Firewall? (04 May 2015)
- On Theory and Practice (02 May 2015)
- ALF: Application Layer Fixup (01 May 2015)
April 2015
- PF_RING Deep Dive with Luca Deri on Software Gone Wild (30 Apr 2015)
- Going Back to the Mainframes? (29 Apr 2015)
- How Do I Start My IPv6 Addressing Plan? (28 Apr 2015)
- On SDN Controllers, Interconnectedness and Failure Domains (27 Apr 2015)
- OMG, VXLAN Encapsulation Has No Security! (24 Apr 2015)
- Hardware Gateways in Overlay Virtual Networks (23 Apr 2015)
- Rearchitecting L3-Only Networks (21 Apr 2015)
- NSONE – Data-Driven DNS on Software Gone Wild (17 Apr 2015)
- How Do I Get Started with SDN and Virtualization? (16 Apr 2015)
- Design Challenge: Multiple Data Centers Connected with Slow Links (15 Apr 2015)
- Video: IPv6 Microsegmentation (14 Apr 2015)
- There’s a Difference between Scaling and Not Being Stupid (13 Apr 2015)
- Are your ESXi uplinks saturated? (11 Apr 2015)
- ntopng Deep Dive with Luca Deri on Software Gone Wild (10 Apr 2015)
- More Layer-2 Misconceptions (09 Apr 2015)
- New Webinar: vSphere 6 Networking Deep Dive (08 Apr 2015)
- Article: Is NFV Relevant for Enterprise Networks? (07 Apr 2015)
- IPv6 is 20 years old (04 Apr 2015)
- Video: IPv6 Myths and Reality (03 Apr 2015)
- What Is Layer-2 and Why Do We Need It? (02 Apr 2015)
- Arista EOS Available on Whitebox Switches (01 Apr 2015)
March 2015
- Video: Automating Network Security (31 Mar 2015)
- Too Many Details Can Hurt You (or Why You Need the Fundamentals First) (30 Mar 2015)
- Common Misconceptions about SDN (29 Mar 2015)
- Microsegmentation in VMware NSX on Software Gone Wild (27 Mar 2015)
- MLD Considered Harmful (26 Mar 2015)
- Availability Zones in Overlay Virtual Networks (25 Mar 2015)
- Whitebox Switching: Follow the R&D Budget (24 Mar 2015)
- You Must Understand the Fundamentals to Be Successful (23 Mar 2015)
- Networking Field Day 9 Wrap-up on Software Gone Wild (20 Mar 2015)
- IPv6 Cheat Sheet (19 Mar 2015)
- Presentation: Automating Network Security (18 Mar 2015)
- Evaluation Guide: Encryptors for Metro and Carrier Ethernet (17 Mar 2015)
- We Have to Get Away from the Box-Focused Mentality (16 Mar 2015)
- TCP Optimization with Juho Snellman on Software Gone Wild (13 Mar 2015)
- Reducing BGP SNMP Traps in DMVPN Networks (12 Mar 2015)
- Video: Routing over VXLAN (11 Mar 2015)
- Whitebox Switching and Open-Source Networking Are not SDN (10 Mar 2015)
- Estimating BGP Convergence Time (09 Mar 2015)
- Scalable Load Balancing with Avi Networks on Software Gone Wild (06 Mar 2015)
- Cisco ACI – a Stretched Fabric That Actually Works (05 Mar 2015)
- Free Online Introduction to SDN and Network Automation Training (04 Mar 2015)
- Response: Why Technology Still Matters (03 Mar 2015)
February 2015
- Do We Need QoS in the Data Center? (27 Feb 2015)
- Scaling Overlay Networks: Scale-Out Control Plane (26 Feb 2015)
- Response: We Dislike People Quoting Gartner (25 Feb 2015)
- Let’s Get Rid of the Thick Yellow Cable (24 Feb 2015)
- BGP Configuration Made Simple with Cumulus Linux (23 Feb 2015)
- RFC 7454: BGP Operations and Security (20 Feb 2015)
- Performance of Hypervisor-Based Overlay Virtual Networking (19 Feb 2015)
- Update: Performance of Hash Table Lookups (18 Feb 2015)
- Hands-On Tail-F Experience – Part 2 (17 Feb 2015)
- Myths That Refuse to Die: Scalability of Overlay Virtual Networking (16 Feb 2015)
- Must bookmark: NSX Link-o-Rama (15 Feb 2015)
- Networking Field Day 9: Brief Recap (14 Feb 2015)
- Hands-On Tail-F Experience on Software Gone Wild (13 Feb 2015)
- Per-Packet Load Balancing on WAN links (12 Feb 2015)
- ONS Accelerate Workshop: Amazingly Refreshing (11 Feb 2015)
- Whitebox Switching and Industry Pundits (11 Feb 2015)
- Scaling Overlay Networks: Distributed Data Plane (10 Feb 2015)
- Let’s Meet in Zurich or Heidelberg (09 Feb 2015)
- Whiteboarding Cisco ACI on Software Gone Wild (06 Feb 2015)
- We Need to Move from Assembling Car Parts to Driving Cars (05 Feb 2015)
- Combining MPLS/VPN, MPLS-TE and QoS on MPLS Talks (04 Feb 2015)
- Before Talking about vMotion across Continents, Read This (03 Feb 2015)
- Big Cloud Fabric: Scaling OpenFlow Fabric (02 Feb 2015)
- Last Chapter of Data Center Design Case Studies Is Published (01 Feb 2015)
January 2015
- Troubleshooting VMware NSX on Software Gone Wild (30 Jan 2015)
- Case Study: Combine Physical and Virtual Appliances in a Private Cloud (29 Jan 2015)
- Is Controller-Based Networking More Reliable than Traditional Networking? (28 Jan 2015)
- Video: IPv6 High Availability Components (27 Jan 2015)
- IPv6 Renumbering – Mission Impossible? (26 Jan 2015)
- Network Programmability 101: Q&A Time (23 Jan 2015)
- Tech Talks: Load Sharing and Entropy Labels in MPLS Networks (22 Jan 2015)
- Lock-In Is Inevitable – Get Used to It! (21 Jan 2015)
- vLAG Caveats in Brocade VCS Fabric (20 Jan 2015)
- Improving ECMP Load Balancing with Flowlets (19 Jan 2015)
- SDN Router @ Spotify on Software Gone Wild (16 Jan 2015)
- Should I Go For CCDE or VCIX-NV? (15 Jan 2015)
- Scaling Overlay Virtual Networks: The Problem (14 Jan 2015)
- Load Balancing Elephant Storage Flows (13 Jan 2015)
- Network Programmability and SDN (12 Jan 2015)
- Pick a Topic for NSX Deep Dive Software Gone Wild Episode (10 Jan 2015)
- Palo Alto Virtual Firewalls on Software Gone Wild (09 Jan 2015)
- Latency: the Killer of Spread-Out Application Stack Ideas (08 Jan 2015)
- How Does MPLS-TE Interact with QoS (07 Jan 2015)
- Totally Redesigned Free Content Web Site (06 Jan 2015)
- BGP Deaggregation with Conditional Route Injection (05 Jan 2015)