On 08/27/2016 11:06, David Lang wrote:
On Fri, 26 Aug 2016, Kathleen Nichols wrote:
[..]
so you can call it large queues instead
of large buffers, but the result
is that packets end up being 'in transit' for a long time.
No, a large queue is a bunch of packets waiting in a queue
(which is contained in a buffer). A large buffer with zero or a
small number of packets in it is not going to result in packets
being in transit for a long time.
[..]
I don't understand what you are trying to call out by trying to
change the terminology.
I think you're almost in violent agreement, except that Kathy is
differentiating between the space set aside for holding between 0
and N packets (or bytes) of data for delivery (a buffer) and
an instance of packets queued up to a particular depth in a buffer
(a queue) . Given that terminology, a bottleneck may
implement a large buffer, but with proper congestion signals (or eg.
delay-based congestion inference by end points) there might only
ever be small queues build up in the (large) buffer.
cheers,
gja