it's sometimesworth reminding technical folks that if you look at a small enough time slice, a network is either 0% or 100% utilized, so if the output is 100% utilized the instant a packet arrives, the device ither dropps the data or buffers it. David Lang On Thu, 6 May 2021, Jason Iannone wrote: > It's not a short discussion but I start with a comparison of circuit and > packet switching, usually with an accompanying drawing. There's a physicist > joke in here about assuming a frictionless environment but for the intent > of this explanation, a circuit switched path is bufferless because circuit > switched networks are point to point and bits are transmitted at the same > rate that they are received. Packet switching introduces a mechanism for > nodes supporting multiple ingress, single egress transmission. In order to > support transient bursts, network nodes hold onto bits for a time while the > egress interface processes the node's ingress traffic. That hold time > equates to additional latency. Every node in a path may subject a flow's > traffic to buffering, increasing latency in transit based on its individual > load. > > Jason > > On Tue, May 4, 2021 at 8:02 PM Livingood, Jason via Bloat < > bloat@lists.bufferbloat.net> wrote: > >> Like many of you I have been immersed in buffer bloat discussions for many >> years, almost entirely within the technical community. Now that I am >> starting to explain latency & latency under load to internal non-technical >> folks, I have noticed some people don’t really understand “traditional” >> latency vs. latency under load (LUL). >> >> >> >> As a result, I am planning to experiment in some upcoming briefings and >> call traditional latency “idle latency” – a measure of latency conducted on >> an otherwise idle connection. And then try calling LUL either “active >> latency” or perhaps “working latency” (suggested by an external colleague – >> can’t take credit for that one) – to try to communicate it is latency when >> the connection is experiencing normal usage. >> >> >> >> Have any of you here faced similar challenges explaining this to >> non-technical audiences? Have you had any success with alternative terms? >> What do you think of these? >> >> >> >> Thanks for any input, >> >> Jason >> _______________________________________________ >> Bloat mailing list >> Bloat@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/bloat >> >