All of lore.kernel.org
 help / color / mirror / Atom feed
From: Nivedita Singhvi <niv@us.ibm.com>
To: Andi Kleen <ak@suse.de>
Cc: "Kevin W. Rudd" <ruddk@us.ibm.com>,
	davem@redhat.com, kuznet@ms2.inr.ac.ru, netdev@oss.sgi.com,
	chester.f.johnson@intel.com
Subject: Re: PMTU issues due to TOS field manipulation (for DSCP)
Date: Wed, 10 Dec 2003 12:30:39 -0800	[thread overview]
Message-ID: <3FD7826F.1050308@us.ibm.com> (raw)
In-Reply-To: <20031210203433.3747b7fd.ak@suse.de>

Andi Kleen wrote:

> I don't think the network users will be very happy if you require changing all
> end hosts this way. How about the following hack? For DF=1 packets
> the ipid field is useless. When you rewrite the TOS to DSCP save
> the old TOS in the ipid field.  When you see an ICMP fragment required
> message with the right DSCP on the router restore the old TOS from the ipid 
> field.

Wouldnt this require changes at the both ends, router and
host? How would we sync?

thanks,
Nivedita

  parent reply	other threads:[~2003-12-10 20:30 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-10 18:23 PMTU issues due to TOS field manipulation (for DSCP) Kevin W. Rudd
2003-12-10 19:34 ` Andi Kleen
2003-12-10 20:20   ` Julian Anastasov
2003-12-10 20:33     ` Nivedita Singhvi
2003-12-10 21:18       ` Julian Anastasov
2003-12-10 22:36         ` Nivedita Singhvi
2003-12-10 22:51           ` David S. Miller
2003-12-10 23:15             ` Julian Anastasov
2003-12-10 23:20               ` David S. Miller
2003-12-11  0:06                 ` Julian Anastasov
2003-12-11  0:09                   ` David S. Miller
2003-12-11  0:34                     ` Julian Anastasov
2003-12-12  8:31                       ` David S. Miller
2003-12-12 23:38                         ` Julian Anastasov
2003-12-18 23:17                           ` Kevin W. Rudd
2004-01-19 22:43                           ` Kevin W. Rudd
2004-01-20  4:29                             ` David S. Miller
2003-12-13  0:10                         ` Julian Anastasov
2004-03-04  9:36                           ` David S. Miller
2004-03-04 20:56                             ` Julian Anastasov
2004-03-04 22:02                               ` kuznet
2004-03-06 11:55                                 ` Julian Anastasov
2004-03-06 16:02                                 ` Julian Anastasov
2003-12-10 20:26   ` Kevin W. Rudd
2003-12-10 20:52     ` Andi Kleen
2003-12-10 20:30   ` Nivedita Singhvi [this message]
2003-12-10 20:55     ` Andi Kleen
2003-12-10 21:11       ` Nivedita Singhvi
  -- strict thread matches above, loose matches on Subject: below --
2003-12-10 21:35 Johnson, Chester F
2003-12-10 23:36 Johnson, Chester F
2003-12-11  0:17 ` Julian Anastasov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=3FD7826F.1050308@us.ibm.com \
    --to=niv@us.ibm.com \
    --cc=ak@suse.de \
    --cc=chester.f.johnson@intel.com \
    --cc=davem@redhat.com \
    --cc=kuznet@ms2.inr.ac.ru \
    --cc=netdev@oss.sgi.com \
    --cc=ruddk@us.ibm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.