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<p class="MsoNormal">Yes, iperf2 and VLC are my main go-tos outside of my own stuff.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This was one of the big things that made me sad about iperf3. Thanks Bob for getting it in there, it was really helpful for me :)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Jake<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Bob McMahon via Make-wifi-fast <make-wifi-fast@lists.bufferbloat.net><br>
<b>Reply-To: </b>Bob McMahon <bob.mcmahon@broadcom.com><br>
<b>Date: </b>Sat,2021-10-30 at 10:17 AM<br>
<b>To: </b>Dave Taht <dave.taht@gmail.com><br>
<b>Cc: </b>Cake List <cake@lists.bufferbloat.net>, Make-Wifi-fast <make-wifi-fast@lists.bufferbloat.net>, ECN-Sane <ecn-sane@lists.bufferbloat.net><br>
<b>Subject: </b>Re: [Make-wifi-fast] Fwd: [PATCH net-next v5 0/5] amt: add initial driver for Automatic Multicast Tunneling (AMT)<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">As an FYI, iperf 2 supports both source specific and standard multicast joins. I think this one of the few open source traffic tools that supports multicast testing.<o:p></o:p></p>
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<p class="MsoNormal"><br>
Bob<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Sat, Oct 30, 2021 at 7:24 AM Dave Taht <<a href="mailto:dave.taht@gmail.com" target="_blank">dave.taht@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">This should be "fun".<br>
<br>
---------- Forwarded message ---------<br>
From: Taehee Yoo <<a href="mailto:ap420073@gmail.com" target="_blank">ap420073@gmail.com</a>><br>
Date: Sat, Oct 30, 2021 at 5:42 AM<br>
Subject: [PATCH net-next v5 0/5] amt: add initial driver for Automatic<br>
Multicast Tunneling (AMT)<br>
To: <<a href="mailto:davem@davemloft.net" target="_blank">davem@davemloft.net</a>>, <<a href="mailto:kuba@kernel.org" target="_blank">kuba@kernel.org</a>>, <<a href="mailto:dsahern@kernel.org" target="_blank">dsahern@kernel.org</a>>,<br>
<<a href="mailto:netdev@vger.kernel.org" target="_blank">netdev@vger.kernel.org</a>><br>
Cc: <<a href="mailto:dkirjanov@suse.de" target="_blank">dkirjanov@suse.de</a>>, <<a href="mailto:ap420073@gmail.com" target="_blank">ap420073@gmail.com</a>><br>
<br>
<br>
This is an implementation of AMT(Automatic Multicast Tunneling), RFC 7450.<br>
<a href="https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/html/rfc7450__;!!GjvTz_vk!A3ij1BC95UcJhHaWLSgiIdef_RePfYenud3dJANXLSHbiJJgd44psjItrAOc6Og$" target="_blank">https://datatracker.ietf.org/doc/html/rfc7450</a><br>
<br>
This implementation supports IGMPv2, IGMPv3, MLDv1, MLDv2, and IPv4<br>
underlay.<br>
<br>
Summary of RFC 7450<br>
The purpose of this protocol is to provide multicast tunneling.<br>
The main use-case of this protocol is to provide delivery multicast<br>
traffic from a multicast-enabled network to sites that lack multicast<br>
connectivity to the source network.<br>
There are two roles in AMT protocol, Gateway, and Relay.<br>
The main purpose of Gateway mode is to forward multicast listening<br>
information(IGMP, MLD) to the source.<br>
The main purpose of Relay mode is to forward multicast data to listeners.<br>
These multicast traffics(IGMP, MLD, multicast data packets) are tunneled.<br>
<br>
Listeners are located behind Gateway endpoint.<br>
But gateway itself can be a listener too.<br>
Senders are located behind Relay endpoint.<br>
<br>
___________ _________ _______ ________<br>
| | | | | | | |<br>
| Listeners <-----> Gateway <-----> Relay <-----> Source |<br>
|___________| |_________| |_______| |________|<br>
IGMP/MLD---------(encap)-----------><br>
<-------------(decap)--------(encap)------Multicast Data<br>
<br>
Usage of AMT interface<br>
1. Create gateway interface<br>
ip link add amtg type amt mode gateway local 10.0.0.1 discovery 10.0.0.2 \<br>
dev gw1_rt gateway_port 2268 relay_port 2268<br>
<br>
2. Create Relay interface<br>
ip link add amtr type amt mode relay local 10.0.0.2 dev relay_rt \<br>
relay_port 2268 max_tunnels 4<br>
<br>
v1 -> v2:<br>
- Eliminate sparse warnings.<br>
- Use bool type instead of __be16 for identifying v4/v6 protocol.<br>
<br>
v2 -> v3:<br>
- Fix compile warning due to unsed variable.<br>
- Add missing spinlock comment.<br>
- Update help message of amt in Kconfig.<br>
<br>
v3 -> v4:<br>
- Split patch.<br>
- Use CHECKSUM_NONE instead of CHECKSUM_UNNECESSARY.<br>
- Fix compile error.<br>
<br>
v4 -> v5:<br>
- Remove unnecessary rcu_read_lock().<br>
- Remove unnecessary amt_change_mtu().<br>
- Change netlink error message.<br>
- Add validation for IFLA_AMT_LOCAL_IP and IFLA_AMT_DISCOVERY_IP.<br>
- Add comments in amt.h.<br>
- Add missing dev_put() in error path of amt_newlink().<br>
- Fix typo.<br>
- Add BUILD_BUG_ON() in amt_smb_cb().<br>
- Use macro instead of magic values.<br>
- Use kzalloc() instead of kmalloc().<br>
- Add selftest script.<br>
<br>
Taehee Yoo (5):<br>
amt: add control plane of amt interface<br>
amt: add data plane of amt interface<br>
amt: add multicast(IGMP) report message handler<br>
amt: add mld report message handler<br>
selftests: add amt interface selftest script<br>
<br>
MAINTAINERS | 8 +<br>
drivers/net/Kconfig | 16 +<br>
drivers/net/Makefile | 1 +<br>
drivers/net/amt.c | 3290 ++++++++++++++++++++++++++<br>
include/net/amt.h | 386 +++<br>
include/uapi/linux/amt.h | 62 +<br>
tools/testing/selftests/net/Makefile | 1 +<br>
tools/testing/selftests/net/amt.sh | 284 +++<br>
tools/testing/selftests/net/config | 1 +<br>
9 files changed, 4049 insertions(+)<br>
create mode 100644 drivers/net/amt.c<br>
create mode 100644 include/net/amt.h<br>
create mode 100644 include/uapi/linux/amt.h<br>
create mode 100644 tools/testing/selftests/net/amt.sh<br>
<br>
--<br>
2.17.1<br>
<br>
<br>
<br>
-- <br>
Fixing Starlink's Latencies: <a href="https://urldefense.com/v3/__https:/www.youtube.com/watch?v=c9gLo6Xrwgw__;!!GjvTz_vk!A3ij1BC95UcJhHaWLSgiIdef_RePfYenud3dJANXLSHbiJJgd44psjItJ65P8PM$" target="_blank">
https://www.youtube.com/watch?v=c9gLo6Xrwgw</a><br>
<br>
Dave Täht CEO, TekLibre, LLC<br>
_______________________________________________<br>
Make-wifi-fast mailing list<br>
<a href="mailto:Make-wifi-fast@lists.bufferbloat.net" target="_blank">Make-wifi-fast@lists.bufferbloat.net</a><br>
<a href="https://urldefense.com/v3/__https:/lists.bufferbloat.net/listinfo/make-wifi-fast__;!!GjvTz_vk!A3ij1BC95UcJhHaWLSgiIdef_RePfYenud3dJANXLSHbiJJgd44psjIteu0IZA4$" target="_blank">https://lists.bufferbloat.net/listinfo/make-wifi-fast</a><o:p></o:p></p>
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