From: Michael Richardson <mcr@sandelman.ca>
To: Jonathan Morton <chromatix99@gmail.com>
Cc: Pete Heist <pete@heistp.net>,
Cake List <cake@lists.bufferbloat.net>,
ecn-sane@lists.bufferbloat.net
Subject: Re: [Ecn-sane] The two SCE tests I have in mind
Date: Sun, 24 Mar 2019 13:32:03 +0100 [thread overview]
Message-ID: <11555.1553430723@dooku.sandelman.ca> (raw)
In-Reply-To: <D1481F1A-BC7D-4EA8-811F-22446327F133@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 907 bytes --]
Jonathan Morton <chromatix99@gmail.com> wrote:
>> On 24 Mar, 2019, at 12:05 pm, Pete Heist <pete@heistp.net> wrote:
>>
>> tcpdump -r file.pcap udp port 2112 and greater 80 and "ip[1] != 0x1”
>>
>> “greater 80” ignores the handshake packets and 0x1 is whatever TOS
>> value we want to make sure the packets contain. We can use different
>> filters for other traffic.
> Bear in mind that the TOS byte contains ECN as well as DSCP fields, and
> the latter is left-justified.
libpcap should probably learn about DSCN bits to avoid people having to
think so much :-)
Send patches to me/github.
--
] Never tell me the odds! | ipv6 mesh networks [
] Michael Richardson, Sandelman Software Works | network architect [
] mcr@sandelman.ca http://www.sandelman.ca/ | ruby on rails [
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 487 bytes --]
next prev parent reply other threads:[~2019-03-24 12:32 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAA93jw5bsQLo0QJbE0cke-mgr9DwEYM0F9E-RYmGqSTWFe+qrA@mail.gmail.com>
[not found] ` <CAB6BA96-AF64-4A16-A5D2-2EAD065F303A@darbyshire-bryant.me.uk>
[not found] ` <3F3F78F9-8F97-42F2-9005-F8449489BECF@gmail.com>
[not found] ` <CAA93jw6BMggHXcYoqfFS2e0iuB54iMr+q+BWv720Z4zfaMb5gw@mail.gmail.com>
[not found] ` <42B7B2FB-94FC-4CA6-B75E-CADB61FE3173@gmail.com>
[not found] ` <6047E899-078F-4E08-A29C-B87D268A4E5E@heistp.net>
[not found] ` <69EA569B-4AD2-4C4B-937B-9ABDD563B120@gmail.com>
2019-03-24 8:55 ` Dave Taht
2019-03-24 9:30 ` [Ecn-sane] [Cake] " Luca Muscariello
2019-03-24 10:30 ` Dave Taht
2019-03-24 12:33 ` Dave Taht
2019-03-24 22:31 ` Sebastian Moeller
2019-03-24 11:05 ` [Ecn-sane] " Pete Heist
2019-03-24 11:08 ` Jonathan Morton
2019-03-24 11:21 ` Pete Heist
2019-03-24 12:32 ` Michael Richardson [this message]
2019-04-01 16:02 ` [Ecn-sane] [Cake] " Stephen Hemminger
2019-04-01 17:21 ` Dave Taht
2019-04-02 13:36 ` Rodney W. Grimes
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
List information: https://lists.bufferbloat.net/postorius/lists/ecn-sane.lists.bufferbloat.net/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=11555.1553430723@dooku.sandelman.ca \
--to=mcr@sandelman.ca \
--cc=cake@lists.bufferbloat.net \
--cc=chromatix99@gmail.com \
--cc=ecn-sane@lists.bufferbloat.net \
--cc=pete@heistp.net \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox