W3C home > Mailing lists > Public > ietf-http-wg-old@w3.org > January to April 1998

Confused about persistent connection for old clients

From: Windes, Edwin <ewindes@spyglass.com>
Date: Thu, 16 Apr 1998 14:44:44 -0500
Message-Id: <D181361D7C86D011925700805FFE898E011AD3B1@spybem01.nap.spyglass.com>
To: http-wg@cuckoo.hpl.hp.com

OK, I too, am confused about why proxies MUST NOT establish
persistent connections with 1.0 clients.  If the client and
origin server connections are handled separately, and if the
proxy understands the 1.0 Keep-alive, what's the danger?

> 8.1.3	Proxy Servers
>
> It is especially important that proxies correctly implement 
> the properties of the Connection header field as specified in 14.2.1.
> The proxy server MUST signal persistent connections 
> separately with its clients and the origin servers (or other 
> proxy servers) that it connects to. Each persistent 
> connection applies to only one transport link.
>
> A proxy server MUST NOT establish a persistent connection 
> with an HTTP/1.0 client (but see RFC 2068 for information 
> about the Keep-Alive header implemented by many HTTP/1.0 clients).
Received on Thursday, 16 April 1998 13:02:21 EDT

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