Re: junk characters from movement keys in vi in xterm via ssh

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

On Tue, 24 Feb 2009 09:37:29 -0800
Chuck Swiger <cswiger%mac.com@localhost> wrote:

> On Feb 23, 2009, at 7:43 PM, James K. Lowden wrote:
> [ ... ]
> >> Look at the 'vi' option 'escapetime'.
> >
> > I can't understand what use that could be with TCP_NODELAY.  Why  
> > would the
> > terminal not always send the escape sequence as a single (small)  
> > packet?
> > Or is it a workaround from former days when TCP_NODELAY was not
> > implemented?
> 
> I daresay this is a workaround intended for slow (300 - 1200 baud)  
> serial lines going over a POTS modem.  Quite possibly it predates
> both ethernet and the TCP/IP protocol....  :-)
> 
No maybes about it...  However, TCP adds a jitter component that wasn't
an issue with dial-up.

                --Steve Bellovin, http://www.cs.columbia.edu/~smb