[BBLISA] need network consultant to help diagnose high latency on our uplink

[John Stoffel]

Alex> Hi folks. We need a network consultant to help us diagnose half
Alex> second+ latency on one of our uplinks under congestion
Alex> conditions. Having heard Jim Getty's talk on buffer bloat, our
Alex> situation appears like that might be the problem. We have the
Alex> skill to make config changes we found online to our Cisco 2600
Alex> router, but not the skill to determine what if any effect those
Alex> changes have.

Alex> We would like to hire someone who can troubleshoot this for
Alex> us. We are not interested in advice of the form "buy X
Alex> equipment", nor "use X tool". If the problem can not be solved
Alex> by config changes on the Cisco router, we would like the
Alex> consultant to explain to us why and we will decide what to do
Alex> from there.

This isn't a pointer, but you might want to go and look carefully at
your uplink documentation from the link provider.  We have a link
which is supposed to goto 50mbit/s, but if you look closely at the
agreement, it only guarantees 11mbit/s and starts dropping packets
above that, depending on the load upstream of us.  

So maybe you're hitting something like that, which means you're SOL
when it comes to router changes.  It would also be helpful if you
provide more details about your link and how it's used, and how busy
it is when it starts to get horrible latency, etc.  

Good luck,
John