Some more questions on S13 (speeding UP, aka sensing the receiver performance)

Can you clarifying the definition of the three measurements reported (LSPTxMax, 
Tx, RxAv)?

So far, it seems that LSPTxMax is always higher than RxAv, i.e. the sender's 
estimation seems higher than the receiver capability.
Could you elaborate why there is no loss of LSP?
Trying to guess on my side (since the algorithm is not published in the draft):
a) LSPTxMax seems in advance of phase (compare to the real sending rate)
b) the receiver seems buffering the LSP in excess rate. i.e. the algorithm 
seems to take benefit of a buffer that he knows nothing about (and may be 
specific to your implementation). Do you know the size of this buffer (either 
from implementation knowledge or from measurements)? If not, you could please 
send the rate data so that I can compute the one used. (looking at the second 
figure, the buffer seems to be at least 400LSP (220*(15-13) which a 
conservative measurement on the graph)


The second figure is showing two bursts.
Why/how has the sender paused?

Thank you,
--Bruno




From: Lsr [mailto:[email protected]] On Behalf Of [email protected]
Sent: Tuesday, August 3, 2021 10:41 AM
To: Les Ginsberg (ginsberg) <[email protected]>
Cc: [email protected]
Subject: [Lsr] IS-IS flooding

Les,

Thank you for the implementation and test results.
I have some clarification questions on your test results

S6:
What burst size did you use? And distributions of reals values if possible, if 
not (min, max, average, median) would be useful.
What scheduling frequency/period did you use on the sender?

S9:
Given that the sender seems to react after 1 second, it seems clear that 
feedback (PSNPs) was received before.
- How fast does the receiver sends PSNP? Is this default value or was that 
changed?
- What value did you use for you configured parameter "Receiver ACK Delay"?

Thank you,
--Bruno

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