On 18-Dec-2006, at 12:04, Joel Jaeggli wrote:
Drew Weaver wrote:
I am looking for opinions of what US carriers have the best connectivity with the international players such as teleglobe, etc. Mainly, we are trying to determine if there is any way for us to get less latency from teleglobe's customers to our network (we currently see something like 1100 ms in teleglobe's london POP in traceroutes from our customers to our network).
You sure the cpu on the teleglobe router in the path isn't just pegged? If the rtt for the whole path is 400ms but one hop in the middles shows 1100ms you're probably measuring the performance of the scheduler in the OS the router is running not rtt to and from that router, packets going through it rather than to it likely take a different path through the box.
Of course if the customer's rtt is 1100+ ms then sure there's probably serious congestion on one of those links.
Or the return path from that router is asymmetric, and involves a few congested hops into space and back. Teleglobe has customers in many parts of the world where such things are not so unusual. Joe