4 ms·
Excellently put! That's exactly what I was looking for! Thank you!
by policedemil 10y ago
Excellently put! That's exactly what I was looking for! Thank you!
- mschuster91 10y agoIf you want to read further, this is a part of network delay (https://en.wikipedia.org/wiki/Network_delay https://en.wikipedia.org/wiki/Network_delay). A highly interesting field. By the way, one thing I have forgotten: an instant-forward has much less latency (obviously), but it cannot retract packets that were corrupted during receiving at the ingress port - simply because the checksum can only be calculated when the whole packet is in the buffer. So basically you choose between safety (corrupted packets do not travel as long, because they don't even reach the final station) and latency (e.g. 10 hops a 0.12ms = 1.20ms delay on 100MBit/s), and also for the cost in buffer memory.