Repository : ssh://git@diktynna/doc On branches: backup-redmine,main

commit 381429a1867c1d535fb775e8ac08815217e37ce6 Author: Linus Lüssing linus.luessing@c0d3.blue Date: Fri Apr 19 20:02:28 2024 +0000

doc: batman-adv/Multicast-IGMP-MLD-Report-Forwarding

381429a1867c1d535fb775e8ac08815217e37ce6 .../Multicast-IGMP-MLD-Report-Forwarding.textile | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+)

diff --git a/batman-adv/Multicast-IGMP-MLD-Report-Forwarding.textile b/batman-adv/Multicast-IGMP-MLD-Report-Forwarding.textile new file mode 100644 index 00000000..d2042b10 --- /dev/null +++ b/batman-adv/Multicast-IGMP-MLD-Report-Forwarding.textile @@ -0,0 +1,24 @@ +h1. Multicast - IGMP/MLD Report Forwarding + +Patches: + +* "batman-adv":https://git.open-mesh.org/batman-adv.git/shortlog/refs/heads/linus/multicast... +* "batctl":https://git.open-mesh.org/batctl.git/shortlog/refs/heads/linus/multicast-rtr... + +WIP/Draft - not yet upstream + +h2. Introduction + +Currently batman-adv forwards/floods an IGMP/MLD Report to all other nodes by default. The _multicast_mld_rtr_only_ option allows to change this behavior to only forward IGMP/MLD Reports to nodes with a multicast router, to reduce IGMP/MLD overhead in the mesh. However this option is not always safe to use, so this page illustrates the scenarios where this option can and cannot be used. + +h3. Scenario A: Multicast to host on node without querier + +!mld-to-mcast-routers-only-scenario-A-overview.png! + +h3. Scenario B: Multicast to host on node with a querier + +!mld-to-mcast-routers-only-scenario-A-overview.png! + +h3. Scenario C: Multicast from host on node with a querier + +!mld-to-mcast-routers-only-scenario-A-overview.png! \ No newline at end of file