Newsgroups: vmsnet.networks.tcp-ip.cmu-tek
Subject: Re: Telnet problem
From: whiskerp@logica.co.uk (Peter Whisker)
Date: 26 Jan 93 09:17:27 GMT
Organization: Logica DCG Ltd., Cobham, Surrey, UK

In article <9301251705.AA25944@grics.edupac.qc.ca> <mdelisle@edupac.qc.ca> writes:
>Subject: Telnet problem
>From: <mdelisle@edupac.qc.ca>
>Date: Mon, 25 Jan 93 12:05:12 EST
>Hi,
>I would like to know if someone has a fix that I could try regarding
>the Telnet delay (I have to typein some characters to see the last part
>of the text sent by telnet).
>
>Thanks!
>

This got posted a fortnight ago and should answer your question.

Peter Whisker


>Marc Delisle, Sherbrooke College
>(mdelisle@edupac.qc.ca)
Subject: Re: Telnet problem
From: shuford@cs.utk.edu (Richard Shuford)
Date: 11 Jan 1993 16:33:05 GMT
Keywords: CMU-OpenFriendlyDontWorryBeHappyVMS-IP, TCP/IP, Telnet, Nagle
Summary: is this not the classic "telnet pause" behavior?

In article <0096641B.1783B300.2842@cvse.cortex.prospect.com>
  Tim McKee, writes, seemingly from South Carolina:
>
> Has anyone encountered a situation where CMU Telnet
> freezes output until you press a key (any transmiting key)?

Is this not the usual "modus operandi" of the "Telnet Pause" bug?
I seem to recall that the problem stems from the bit of code that
implements the particular fine-tuning of the TCP protocol called
the "Nagle Heuristic".

If so, the fix was advertised here last month:

| Newsgroups: vmsnet.networks.tcp-ip.cmu-tek
| Subject: RE: TELNET pause
| Message-ID: <921209204912.20a04bd3@SACUSR.MP.USBR.GOV>
| From: <henrym@sacusr.mp.usbr.gov>
| Date: Wed, 9 Dec 1992 20:49:12 -0800 (PST)
| Reply-To: CMU-OpenVMS-IP@drycas.club.cc.cmu.edu
| 
| 
|       To get the new version, use ANONYMOUS FTP to either SACUSR.MP.USBR.GOV
| or SACWMS.MP.USBR.GOV.  In directory [.TEKIP] are the files TEKIP0665A.SAVE
| and TEKIP0665A.SAVE_Z.  The latter is an LZCOMP'ed version of the former.
| This is not at installation kit, but just a BACKUP saveset and the structure
| of the saveset should make it obvious where the files go under
| CMUTEK_SYSROOT:
| 
|       Due to the new IP driver and PTY drivers, you will have to reboot the
| system.  The IPACP and drivers are co-dependant on each other, so you have
| to load them all up and reboot.  Before you reboot, modify your
| INTERNET.CONFIG file to use the 'ETHER' driver instead of 'XEDRV'.  There
| are still some problems with the external driver, but the internal driver
| works OK.
| 
|       If you are running an older version of the code, you will have to make
| the following couple of changes in your IP_STARTUP.COM:
| 
| $DEFINE/SYSTEM/EXEC   INET$PTY        PNA:
| $DEFINE/SYSTEM/EXEC   INET$PTY_TERM   TZ
| 
|       If your version is still using the old TW and PZ drivers, then change
| the PZ  references to PN and TW to TZ.
| 
| -HWM
| ----------
| Henry W. Miller
| Assistant Systems and Network Manager
| U.S. Bureau of Reclamation
| Mid Pacific Region
| 2800 Cottage Way MP1100
| Sacramento, CA 95825
| (916) 978-5108 / FTS - Same as commercial
| Inet: "henrym@sacwms.mp.usbr.gov"
| BITNET:       "hmiller@scu"

(BTW, it would still make sense to change the name of this software to
"DECUS TCP/IP".)

-- 
 ...Richard S. Shuford  |"He who oppresses the poor to increase his wealth and
 ...shuford@cs.utk.edu  | he who gives gifts to the rich--both come to
poverty.
 ...Info-Stratus Coord. | Proverbs 22:16  NIV
_______________________________________
Peter Whisker   (whiskerp@logica.co.uk)
Logica DCG Ltd.
Cobham, Surrey KT11 1HY, UK
Newsgroups: vmsnet.networks.tcp-ip.cmu-tek,comp.sys.vms