lkml.org 
[lkml]   [1999]   [Oct]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: RFC: fragmentation code experiment
On Sat, Oct 23, 1999 at 05:59:28PM -0600, Todd wrote:
> On Sun, 24 Oct 1999, Alan Cox wrote:

> > > 2) modern networks almost never produce out-of-order fragments for packets
> > > that are eventually accepted (this is a premise--needs to be tested).

> > NFS produces zillions of them

> UDP only currently, right? How does NFS product out-of-order fragments on
> local networks on a regular basis? Is this all NFS implementations, or
> just linux.

> > > 3) workstations and server that do no fragment reassembly or at least no
> > > out-of-order fragment reassembly would have simpler (and
> > > better-performing) network code.
> >
> > Nope, its not on the fast path
>
> But the code would still be simpler, no?
>
> > > 4) if fragment reassembly (out-of-order or not) needs to be done, it
> > > should be done by border routers (where people are increasingly willing to
> > > do computationally intensive stuff like filter and reassemble fragments).
> >
> > We support this for internet stuff. However most fragmented packets are
> > local
>
> This is the part i could use some help understanding. As i understand it,
> fragmentation only happens at routing when two links have different MTUs.
> Is this covered by what you mean by 'local'?
>
> todd
> todd@unm.edu
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.rutgers.edu
> Please read the FAQ at http://www.tux.org/lkml/

--
Michael H. Warfield | (770) 985-6132 | mhw@WittsEnd.com
(The Mad Wizard) | (770) 331-2437 | http://www.wittsend.com/mhw/
NIC whois: MHW9 | An optimist believes we live in the best of all
PGP Key: 0xDF1DD471 | possible worlds. A pessimist is sure of it!


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:54    [W:0.153 / U:0.620 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site