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[doc] backup-redmine,main: doc: batman-adv/mld-to-mcast-routers-only-scenario-A.png (801bf0c4)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit 801bf0c42898cf108e7e368895f4ab1d0143150a Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 20:03:00 2024 +0000 doc: batman-adv/mld-to-mcast-routers-only-scenario-A.png >--------------------------------------------------------------- 801bf0c42898cf108e7e368895f4ab1d0143150a batman-adv/mld-to-mcast-routers-only-scenario-A.png | Bin 0 -> 182185 bytes 1 file changed, 0 insertions(+), 0 deletions(-) diff --git a/batman-adv/mld-to-mcast-routers-only-scenario-A.png b/batman-adv/mld-to-mcast-routers-only-scenario-A.png new file mode 100644 index 00000000..290408c9 Binary files /dev/null and b/batman-adv/mld-to-mcast-routers-only-scenario-A.png differ

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[doc] backup-redmine,main: doc: batman-adv/mld-to-mcast-routers-only-scenario-A.dia (a0dc59ea)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit a0dc59ea8d00373ee46396bd8b3386c85b179528 Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 20:03:00 2024 +0000 doc: batman-adv/mld-to-mcast-routers-only-scenario-A.dia >--------------------------------------------------------------- a0dc59ea8d00373ee46396bd8b3386c85b179528 batman-adv/mld-to-mcast-routers-only-scenario-A.dia | Bin 0 -> 3938 bytes 1 file changed, 0 insertions(+), 0 deletions(-) diff --git a/batman-adv/mld-to-mcast-routers-only-scenario-A.dia b/batman-adv/mld-to-mcast-routers-only-scenario-A.dia new file mode 100644 index 00000000..0631da1a Binary files /dev/null and b/batman-adv/mld-to-mcast-routers-only-scenario-A.dia differ

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[doc] backup-redmine,main: doc: batman-adv/Multicast-optimizations-tech (eae6c839)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit eae6c839497901a50723d506f299ff83b2080904 Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 03:01:48 2024 +0000 doc: batman-adv/Multicast-optimizations-tech >--------------------------------------------------------------- eae6c839497901a50723d506f299ff83b2080904 batman-adv/Multicast-optimizations-tech.textile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/batman-adv/Multicast-optimizations-tech.textile b/batman-adv/Multicast-optimizations-tech.textile index 667234dc..8c3ee711 100644 --- a/batman-adv/Multicast-optimizations-tech.textile +++ b/batman-adv/Multicast-optimizations-tech.textile @@ -71,8 +71,8 @@ If the total number of nodes interested in a group is: * ... 0, then this frame can be safely dropped. * >= 1, then this frame is encapsulated in and forwarded, in this order of priority, either via: -** a [[Multicast-Packet-Type|batman-adv multicast packet]] to the according destination(s). -** batman-adv unicast packet(s) to the according destination(s). +** a [[Multicast-Packet-Type|batman-adv multicast packet]] to the according destination(s) - if the count and headroom allows it +** batman-adv unicast packet(s) to the according destination(s) - if the count and multicast-fanout setting allows it ** [[Broadcast|batman-adv broadcast packet]] and forwarded via classic flooding to all nodes. The latter case is the general fallback to broadcast, which is also used when the the multicast optimization is turned off.

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[doc] backup-redmine,main: doc: batman-adv/Multicast-optimizations-tech (32ed44dd)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit 32ed44ddc2aeadddcec849589e23f861de9258a7 Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 03:02:17 2024 +0000 doc: batman-adv/Multicast-optimizations-tech >--------------------------------------------------------------- 32ed44ddc2aeadddcec849589e23f861de9258a7 batman-adv/Multicast-optimizations-tech.textile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/batman-adv/Multicast-optimizations-tech.textile b/batman-adv/Multicast-optimizations-tech.textile index 8c3ee711..833fef69 100644 --- a/batman-adv/Multicast-optimizations-tech.textile +++ b/batman-adv/Multicast-optimizations-tech.textile @@ -71,7 +71,7 @@ If the total number of nodes interested in a group is: * ... 0, then this frame can be safely dropped. * >= 1, then this frame is encapsulated in and forwarded, in this order of priority, either via: -** a [[Multicast-Packet-Type|batman-adv multicast packet]] to the according destination(s) - if the count and headroom allows it +** a [[Multicast-Packet-Type|batman-adv multicast packet]] to the according destination(s) - if the count and available headroom allows it ** batman-adv unicast packet(s) to the according destination(s) - if the count and multicast-fanout setting allows it ** [[Broadcast|batman-adv broadcast packet]] and forwarded via classic flooding to all nodes.

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[doc] backup-redmine,main: doc: batman-adv/mld-to-mcast-routers-only-scenario-C-overview.dia (0bb75250)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit 0bb752504a49d84b61494b956f9941c7382677c8 Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 20:01:40 2024 +0000 doc: batman-adv/mld-to-mcast-routers-only-scenario-C-overview.dia >--------------------------------------------------------------- 0bb752504a49d84b61494b956f9941c7382677c8 .../mld-to-mcast-routers-only-scenario-C-overview.dia | Bin 0 -> 2303 bytes 1 file changed, 0 insertions(+), 0 deletions(-) diff --git a/batman-adv/mld-to-mcast-routers-only-scenario-C-overview.dia b/batman-adv/mld-to-mcast-routers-only-scenario-C-overview.dia new file mode 100644 index 00000000..a9cd072a Binary files /dev/null and b/batman-adv/mld-to-mcast-routers-only-scenario-C-overview.dia differ

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[doc] backup-redmine,main: doc: batman-adv/mld-to-mcast-routers-only-scenario-B-overview.dia (5cf2e59c)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit 5cf2e59c0de10630922678b060cc0243801dd723 Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 20:01:40 2024 +0000 doc: batman-adv/mld-to-mcast-routers-only-scenario-B-overview.dia >--------------------------------------------------------------- 5cf2e59c0de10630922678b060cc0243801dd723 .../mld-to-mcast-routers-only-scenario-B-overview.dia | Bin 0 -> 2317 bytes 1 file changed, 0 insertions(+), 0 deletions(-) diff --git a/batman-adv/mld-to-mcast-routers-only-scenario-B-overview.dia b/batman-adv/mld-to-mcast-routers-only-scenario-B-overview.dia new file mode 100644 index 00000000..97f03ab3 Binary files /dev/null and b/batman-adv/mld-to-mcast-routers-only-scenario-B-overview.dia differ

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[doc] backup-redmine,main: doc: batman-adv/mld-to-mcast-routers-only-scenario-A-overview.dia (4a2db305)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit 4a2db305dddabfbdd6eebf23421aeba0e331c491 Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 20:01:40 2024 +0000 doc: batman-adv/mld-to-mcast-routers-only-scenario-A-overview.dia >--------------------------------------------------------------- 4a2db305dddabfbdd6eebf23421aeba0e331c491 .../mld-to-mcast-routers-only-scenario-A-overview.dia | Bin 0 -> 2439 bytes 1 file changed, 0 insertions(+), 0 deletions(-) diff --git a/batman-adv/mld-to-mcast-routers-only-scenario-A-overview.dia b/batman-adv/mld-to-mcast-routers-only-scenario-A-overview.dia new file mode 100644 index 00000000..a6f8bab0 Binary files /dev/null and b/batman-adv/mld-to-mcast-routers-only-scenario-A-overview.dia differ

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[doc] backup-redmine,main: doc: batman-adv/Multicast.svg (687798a3)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit 687798a3c81b5d2bda2e00a1d7f058d331d7eb10 Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 02:41:18 2024 +0000 doc: batman-adv/Multicast.svg >--------------------------------------------------------------- 687798a3c81b5d2bda2e00a1d7f058d331d7eb10 batman-adv/Multicast.svg | 168 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 168 insertions(+) diff --git a/batman-adv/Multicast.svg b/batman-adv/Multicast.svg new file mode 100644 index 00000000..ca1f5bd2 --- /dev/null +++ b/batman-adv/Multicast.svg @@ -0,0 +1,168 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> + +<svg + xmlns:dc="http://purl.org/dc/elements/1.1/" + xmlns:cc="http://web.resource.org/cc/" + xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" + xmlns:svg="http://www.w3.org/2000/svg" + xmlns="http://www.w3.org/2000/svg" + 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[doc] backup-redmine,main: doc: batman-adv/Multicast.png (44bee666)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit 44bee6669c957402beaed5533a87709ef70dafd6 Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 02:42:30 2024 +0000 doc: batman-adv/Multicast.png >--------------------------------------------------------------- 44bee6669c957402beaed5533a87709ef70dafd6 batman-adv/Multicast.png | Bin 0 -> 58808 bytes 1 file changed, 0 insertions(+), 0 deletions(-) diff --git a/batman-adv/Multicast.png b/batman-adv/Multicast.png new file mode 100644 index 00000000..c8de0290 Binary files /dev/null and b/batman-adv/Multicast.png differ

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[doc] backup-redmine,main: doc: batman-adv/Multicast-optimizations (1f1386ca)
by postmaster＠open-mesh.org 10 May '24

10 May '24

Repository : ssh://git@diktynna/doc On branches: backup-redmine,main >--------------------------------------------------------------- commit 1f1386ca66d7f8bfbd0253bcf3c2a6180c368b39 Author: Linus Lüssing <linus.luessing(a)c0d3.blue> Date: Fri Apr 19 02:44:12 2024 +0000 doc: batman-adv/Multicast-optimizations >--------------------------------------------------------------- 1f1386ca66d7f8bfbd0253bcf3c2a6180c368b39 batman-adv/Multicast-optimizations.textile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/batman-adv/Multicast-optimizations.textile b/batman-adv/Multicast-optimizations.textile index 65551eb1..c1c8ba2c 100644 --- a/batman-adv/Multicast-optimizations.textile +++ b/batman-adv/Multicast-optimizations.textile @@ -1,5 +1,7 @@ h1. Multicast Optimizations +!{width:33%;}Multicast.png! + "Multicast":https://en.wikipedia.org/wiki/Multicast allows to transmit data to a group of receivers, unlike unicast which transmits to just one receiver and broadcast which transmits to everyone. Multicast is used for applications like IPTV, internet radio or group communication and more. Also IPv6 relies on multicast for its basic services. Without optimization, switches (including batman-adv) typically implement multicast as broadcast. If everyone gets the packet, all group members get it too. Consequently, all layer 2 switches are multicast capable, but that comes with a cost: Even if there are only a few multicast listeners interested, the whole mesh network is unnecessarily bothered with these multicast packets. Considering that broadcast transmissions are particularly expensive operations on WiFi in general and wireless mesh networks (in terms of bandwidth) reducing the amount of multicast traffic by only forwarding traffic to its multicast group members will greatly improve performance for these services.

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