From The Mailing list Archive

  • Quick and Dirty Performance Testing With Apache Bench

    Quick and Dirty Performance Testing With Apache Bench

    If you need a quick and dirty way to throw some load onto a load balancer/ADC or web server, Apache comes with a great tool called Apache Bench.  Since it’s an HTTP client, it will of course work with any server, not just Apache-based servers....

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  • Alteon and AMC Pacer:  Beloved, Odd Looking

    Alteon and AMC Pacer: Beloved, Odd Looking

    I was on a run in my new home of Portland, Oregon when I came upon an AMC Pacer parked on the street.  And I thought, how like the old Alteons the AMC Pacer is.  They’re both rather odd looking, and have a rather fanatical...

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  • 3 Things You Need To Know About Etherchannel

    3 Things You Need To Know About Etherchannel

    EtherChannel is a strange creature.  It’s generally known as a way to load balance Ethernet traffic over multiple links.  Need more than 1 Gigabit of throughput, but don’t have 10 Gigabit interfaces yet?  Then bond two Gigabit links together in an EtherChannel link, and you’ve...

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  • Same Sunbet Problem

    Same Sunbet Problem

    One of the most common problems that afflict load balancing situations is the “same subnet” problem. This is when a client tries to browse a Virtual Service/VIP from the same subnet as the real servers. Lately, I’ve seen this come up on the mailing list....

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  • Doin’s ‘A Transpirin’

    Doin’s ‘A Transpirin’

    Happy Friday the 13th, everyone.  I have a couple of quick items, that I think those following the SLB market might find interesting. * Another SLB vendor has hit my radar, a company called A10 Networks. They have a Layer 4-7 load balancer from the...

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  • Powerpoint on Database Load Balancing for Flickr

    Powerpoint on Database Load Balancing for Flickr

    I posted this in reference to a question about load balancing database servers. It’s a PowerPoint given at a PHP conference in ’05 given by John Allspaw of Flickr. It’s quite a good read, and talks about challenges that they faced when massively scaling an...

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  • Daylight Savings Time fix for older F5 BIG-IPs

    Daylight Savings Time fix for older F5 BIG-IPs

    On March 1st, a user asked the asked a question about what they might do to fix the DST problem (Daylight Savings Time), since it’s changing this year, for older F5 BIG-IP systems that were out of contract and ineligible for code fixes. Steve Lothspeich...

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  • From The Mailing List: FWLB

    From The Mailing List: FWLB

    Occasionally there are posts on the Load Balancing Mailing List that bring up very interesting issues that are worthy of particular note. So, from time to time, I will be highlighting certain posts on the LB Digest. Recently member Cihan Subasi posted an interesting question...

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