[Testing] Some firmware Q2E24 nand blasting results

[Gary C Martin]

Here's a first pass focusing on Q2E24 nand blasting between 2 XOs (one  
B4 and one XO-1). These tests only used the new nb-clone OFW command  
of an 8.2.1-760 image. I'll try testing the nb-update and nb-secure  
later (hopefully once I get a 3rd XO unlocked for unsigned firmware  
testing).

Q2E24 general observation: First key press at ok prompt is dropped  
(kept catching me out and making initial typos) not sure if this is  
worth a ticket.

SUMMARY: No failures over 4 blasts, performance seemed fast (under  
quiet conditions) and/or robust (under weak network signal conditions).

DETAILS: Nand blaster nb-clone results, quiet network environment with  
~8 APs visible, XOs tested in both close and far locations, with ears  
up and ears closed. After each test the receiving XO was booted up and  
tested to be working.

XOs next to each other, ears up.
   Sender
     1007937 KiB sent in 677 s (1487 KiB/s)
   Receiver
     Net 672.0s 1202Kib/s
     Rd 46.10s FEC 7.5s CRC 19.6s Wr 95.2s Er 14.6s
= 16m to complete

XOs next to each other, ears closed.
   Sender
     1007937 KiB sent in 649 s (1553 Kibs)
   Receiver
     Net 648.3s 1246KiB/s
     Rd 47.0s FEC 11.1s CRC 19.6s Wr 94.10s Er 14.5s
  = 15m to complete

XOs ~7m away plus 2 walls, ears up.
   Sender
     1007937 KiB sent in 649 s (1553 Kibs)
   Receiver
     Net 1143.9s 706Kib/s
     Rd 47.1s FEC 30.3s CRC 19.6s Wr 95.0s Er 14.5s
= 14m to complete, saw occasional clumps purple partial blocks on  
first pass (~10%).

XOs ~7m away plus 2 walls, ears closed.
   Sender
     1007937 KiB sent in 649 s (1553 Kibs)
   Receiver
     Net 4294.3s 188KiB/s
     Rd 46.10s FEC 115.9s CRC 19.7s Wr 94.7s Er 14.6s
= 78m to complete, heavy amount of purple partials (~40%) & some  
yellow missing blocks, many passes.

Looks like a very useful trick to have available!

--Gary