[Sunhelp] Slow TFTP with NCD 19R xterminal?

Bill Bradford mrbill at frenzy.com
Mon Nov 1 02:01:43 CST 1999


I've got a problem - my NCD 19R xterminal takes about half an' hour
to boot its OS image file ("Xncd19r, 2.4meg) off my Ultra 5.  Tftp on
the U5 looks fine:

bash-2.03# tftp
tftp> connect localhost
tftp> get Xncd19r
Received 2443968 bytes in 2.4 seconds
tftp> quit
bash-2.03# 

The ethernet cable I'm using is about 35 feet long.  I've got an AUI cable
coming out of the back of the 19R into a AUI to 10baseT/RJ45 transceiver 
made by SynOptics, then a RJ45/cat5 10bt cable down the hall into the 
Accton 10bt switch in the "computer room".  Once the OS image is loaded,
the xterminal works just fine - so I can rule out a  bad cable (which 
would show up as packet loss or whatever).

Bootp works fine (the terminal gets its IP address, IP config info, and
the name of the file to boot just fine).

Here's a segment of "snoop nobody.likes.nt.workstations.org" (the DNS
name of the xterminal):

nobody.likes.nt.workstations.org -> leenux.mrbill.net TFTP Ack  block 3589
leenux.mrbill.net -> nobody.likes.nt.workstations.org TFTP Data block 3590 (512 bytes)
nobody.likes.nt.workstations.org -> leenux.mrbill.net TFTP Ack  block 3590
leenux.mrbill.net -> nobody.likes.nt.workstations.org TFTP Data block 3591 (512 bytes)
nobody.likes.nt.workstations.org -> leenux.mrbill.net TFTP Ack  block 3590
leenux.mrbill.net -> nobody.likes.nt.workstations.org TFTP Data block 3591 (512 bytes)

Its doing one pair of lines every 3-4 seconds.

Any suggestions?  Theoretically the terminal should be able to download
and boot the file in 3-5 seconds, according to a friend who has a 19R as
well.

Bill (desperately needing a 19R manual) 

-- 
Bill Bradford * mrbill at sunhelp.org * http://www.sunhelp.org
------------------------------------------------------------
>From a Sun Microsystems bug report (#4102680):
"Workaround: don't pound on the mouse like a wild monkey."






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