- From: Patrik Winroth <pwinroth@alteon.com>
- Date: Thu, 30 Nov 2000 11:32:19 +0100 (CET)
- To: Patrik Carlsson <patrik.x.carlsson@era.ericsson.se>
- cc: http-wg@cuckoo.hpl.hp.com
On Thu, 30 Nov 2000, Patrik Carlsson wrote: > Hi! > > I am currently working with a traffic model for an IP network. I have a > question about the amount of overhead involved when transfering binary > files over http. As fas as I understood, http handles binary files so no > encoding has to be performed (as for example files over SMTP uses MIME). > So, how many header-bytes does http add in each packet when sending a > binary file from a server to a client? Depends on the server, but typically around 256 bytes. E.g. this instance of Apache response uses 279 bytes: ab -v 4 http://www.foo.com:81/poweredby.png HTTP/1.1 200 OK Date: Thu, 30 Nov 2000 10:21:44 GMT Server: Apache/1.3.12 (Unix) (Red Hat/Linux) PHP/3.0.15 mod_perl/1.21 Last-Modified: Wed, 01 Mar 2000 18:37:44 GMT ETag: "33303-482-38bd6378" Accept-Ranges: bytes Content-Length: 1154 Connection: close Content-Type: image/png <1154 bytes of binary data> Cheers, /Patrik. -- Patrik Winroth <pwinroth@alteon.com>
Received on Thursday, 30 November 2000 02:48:25 UTC