Acceptable levels of Latency, Jitter and Packet loss on national links
Hi People, We're about to upgrade our site to site 2Mbit/s frame relay WAN links (Akl, Wgn & Chc) to 10Mbit/s fibre into a central cloud, but I'm not entirely happy with the performance levels our provider is offering us. Below I've listed what's on offer, but I wanted to see what other providers consider to be deliverable levels for National links. All thoughts and comments welcome, probably off-list (to keep the noise down), and I can post a summary if people are interested. Latency Jitter IP Packet Loss "Realtime" <50ms <12.5ms <0.1% "Interactive" <75ms <50ms <0.1% "Business" <200ms <100ms <1.0% And yes, we're chasing references who are already using this service. The reason for my dissatisfaction... Based on crude testing with ping, we already get an average of 25ms latency over the 2Mbit/s fibre (during normal background load), and that's a round trip! So I'm not sure how the above is really an improvement... Soon'ish Craig
On 26 Sep 2004, at 22:25, Craig Humphrey wrote:
Latency Jitter IP Packet Loss "Realtime" <50ms <12.5ms <0.1% "Interactive" <75ms <50ms <0.1% "Business" <200ms <100ms <1.0%
And yes, we're chasing references who are already using this service.
The reason for my dissatisfaction... Based on crude testing with ping, we already get an average of 25ms latency over the 2Mbit/s fibre (during normal background load), and that's a round trip! So I'm not sure how the above is really an improvement...
What is the actual RTT over the ethernet service? Normal performance and guaranteed performance seem very unlikely to be similar (or even comparable within an order of magnitude). However, if you intend to place any value at all on those numbers you should probably verify what measurements they expect to do in order to justify them (for example, if there's no probe hosts installed in your network and managed by your provider, you can bet that the measurements they're doing and the measurements you might do will never coincide exactly). Joe
participants (2)
-
Craig Humphrey -
Joe Abley