Though it can help, increasing bandwidth on any network experiencing latency issues does not necessarily fix the problem.
Congestion and forwarding delay are the more important types of latency on an network, and are not entirely independent. As a network element is subjected to heavy load, it may need additional queue time to handle and
process the increased volume of traffic, which causes forwarding delay.
But there are other sources, as well. Serialization delay is the most constant, having only a small influence on end-to-end latency. Propagation delay, typically stable in circuit-switched networks, can be irregular and introduce jitter over routed networks.
As network congestion can have a large impact on end-to-end latency, affecting both forwarding and pure congestion (queuing-related) delay.
Reducing traffic bottlenecks therefore is a key part of network management and design. Increasing capacity (available bandwidth) should, at least in theory, help reduce congestion when applied to network “pinch points”.
However, increasing throughput does not always lead to the expected decrease in latency, even if
congestion is reduced. Results will vary depending on implementation, network architecture, traffic
patterns, and a number of other factors.
white paper here
Monday, August 23, 2010
"More Bandwidth" Does Not Necessarily Cure Latency Issues
Labels:
latency

Subscribe to:
Post Comments (Atom)
Does Claude 3.5 Haiku "Plan Ahead?"
Researchers looking at Antropic’s Claude language model 3.5 Haiku find evidence that Claude sometimes thinks in a conceptual space that is s...
-
We have all repeatedly seen comparisons of equity value of hyperscale app providers compared to the value of connectivity providers, which s...
-
It really is surprising how often a Pareto distribution--the “80/20 rule--appears in business life, or in life, generally. Basically, the...
-
One recurring issue with forecasts of multi-access edge computing is that it is easier to make predictions about cost than revenue and infra...
No comments:
Post a Comment