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: [Cake] [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>
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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 [
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next prev parent reply other threads:[~2019-03-24 12:32 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-23 19:15 [Cake] Sce In cake testers wanted Dave Taht
2019-03-23 21:28 ` Kevin Darbyshire-Bryant
2019-03-23 23:53 ` Jonathan Morton
2019-03-23 23:54 ` Dave Taht
2019-03-23 23:58 ` Jonathan Morton
2019-03-24 7:37 ` Pete Heist
2019-03-24 8:45 ` Jonathan Morton
2019-03-24 8:55 ` [Cake] The two SCE tests I have in mind Dave Taht
2019-03-24 9:30 ` 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 ` 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 ` [Cake] [Ecn-sane] " Stephen Hemminger
2019-04-01 17:21 ` Dave Taht
2019-04-02 13:36 ` Rodney W. Grimes
2019-03-24 21:00 ` [Cake] Sce In cake testers wanted Kevin Darbyshire-Bryant
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