DLSw+ Performance
Just days before 2012 arrives and heralds in the Mayan apocalypse, I thought I’d do something ridiculous. Like shoot heroin or test the airbags in my car by driving into a wall at high speeds. But...
View ArticleJuniper MAG6610 Performance Characteristics
I was asked a question by @cooperlees as to whether I’d see any real-world performance indications on the Juniper MAG 6610 Chassis. Whilst I have deployed about a dozen across the world, it’s still...
View ArticleShow 88 – Server Internals and Network Performance
Having met at VMworld 2010, Daniel Bowers and I were having an ongoing discussion around server architectures and how they impact network performance. I convinced him to come onto the show and talk...
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TCP Over IP Bandwidth Overhead
How long will it take to transfer a 100MB file over an IPSec tunnel running across a dedicated 100Mbps Ethernet link? 1 Second? Fail! 8s? You’re getting warmer. It’s almost 8.5s without the IPSec and...
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IPSec Bandwidth Overhead Using AES
Someone asked so lets walk through the overhead introduced when using IPSec with AES; it’s higher than you might think and I haven’t even factored in ISAKMP. Encryption really isn’t ‘my bag’ so if...
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TCP/IP over VXLAN Bandwidth Overheads
A recent ‘conversation’ around VXLAN encapsulation and MTU with Matt Oswalt got me thinking about this subject recently. My calculations were mostly wrong (Matt’s were not) and I also found a shocking...
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What The Heck Is SPDY?
A10‘s presentation at NFD8 seemed to generate a bit of interest (dare I say excitement) and many a question around the SPDY (pronounced ‘speedy’) protocol. I promised Lindsey Hill (@northlandboy) on...
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Show 219 – Open vSwitch Obtains Ludicrous Speed
Ben Pfaff, Justin Pettit, and Ethan Jackson are core contributors to the Open vSwitch (OVS) project. What’s OVS? OVS is a virtual switch that’s growing in popularity as an open source vSwitch. The more...
View ArticleDLSw+ performance
Just days before 2012 arrives and heralds in the Mayan apocalypse, I thought I’d do something ridiculous. Like shoot heroin or test the airbags in my car by driving into a wall at high speeds. But...
View ArticleJuniper MAG6610 Performance Characteristics
I was asked a question by @cooperlees as to whether I’d see any real-world performance indications on the Juniper MAG 6610 Chassis. Whilst I have deployed about a dozen across the world, it’s still...
View ArticleTCP Over IP Bandwidth Overhead
How long will it take to transfer a 100MB file over an IPSec tunnel running across a dedicated 100Mbps Ethernet link? 1 Second? Fail! 8s? You’re getting warmer. It’s almost 8.5s without the IPSec and...
View ArticleIPSec Bandwidth Overhead Using AES
Someone asked so lets walk through the overhead introduced when using IPSec with AES; it’s higher than you might think and I haven’t even factored in ISAKMP. Encryption really isn’t ‘my bag’ so if...
View ArticleTCP/IP over VXLAN Bandwidth Overheads
A recent ‘conversation’ around VXLAN encapsulation and MTU with Matt Oswalt got me thinking about this subject recently. My calculations were mostly wrong (Matt’s were not) and I also found a shocking...
View ArticleWhat The Heck Is SPDY?
A10‘s presentation at NFD8 seemed to generate a bit of interest (dare I say excitement) and many a question around the SPDY (pronounced ‘speedy’) protocol. I promised Lindsey Hill (@northlandboy) on...
View ArticleMultipathing With NFS4.1 And KVM
Today, we’re going to talk about performance and especially network performance. The main goal of this article is to present to you a way to boost progressively your network bandwidth at minor costs....
View ArticleNyansa Measures Network Performance Using Mobile Devices As Sensors
Nyansa combines premises software and cloud analytics to measure and monitor network and application performance from the end user perspective. The post Nyansa Measures Network Performance Using Mobile...
View ArticleAppNeta Announces New Service For Network & Application Performance Monitoring
AppNeta has launched a new service, AppNeta Performance Manager, to monitor application and network performance from data centers and branch/remote offices. The service combines app identification,...
View ArticleSavvius Spotlight Promises Real-Time Flow Analysis For Network Problem Solving
Savvius has released a new troubleshooting appliance called Spotlight, which provides analysis of network performance in real time based on traffic flows. The post Savvius Spotlight Promises Real-Time...
View ArticleThousandEyes’ New Device Layer Integrates SNMP With Performance Monitoring
ThousandEyes has announced a new capability for monitoring network performance. Called Device Layer, it uses SNMP to collect data on routers, switches, and other networking gear. The post ThousandEyes’...
View ArticleCitrix Acquires DNS Service Cedexis
Citrix has acquired Cedexis, a company that provides a DNS service that can steer requests based on real-time performance data, for an undisclosed amount. The post Citrix Acquires DNS Service Cedexis...
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