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| author | Joachim Wiberg <troglobit@gmail.com> | 2022-03-16 10:02:57 +0100 |
|---|---|---|
| committer | David Ahern <dsahern@kernel.org> | 2022-03-20 17:36:30 -0600 |
| commit | e48808692b6db3f1d7d31139eb22030228ba6fb7 (patch) | |
| tree | 883b510da9136f9fb5cee09f95e087d7d1a9e901 | |
| parent | 9e82e828764aa1c0303697164883fc355e9310b8 (diff) | |
| download | iproute2-e48808692b6db3f1d7d31139eb22030228ba6fb7.tar.gz | |
man: bridge: document per-port mcast_router settings
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
| -rw-r--r-- | man/man8/bridge.8 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/man/man8/bridge.8 b/man/man8/bridge.8 index 93852ed82..2fa4f3d69 100644 --- a/man/man8/bridge.8 +++ b/man/man8/bridge.8 @@ -47,6 +47,8 @@ bridge \- show / manipulate bridge addresses and devices .BR hwmode " { " vepa " | " veb " } ] [ " .BR bcast_flood " { " on " | " off " } ] [ " .BR mcast_flood " { " on " | " off " } ] [ " +.BR mcast_router +.IR MULTICAST_ROUTER " ] [" .BR mcast_to_unicast " { " on " | " off " } ] [ " .BR neigh_suppress " { " on " | " off " } ] [ " .BR vlan_tunnel " { " on " | " off " } ] [ " @@ -474,6 +476,19 @@ Controls whether multicast traffic for which there is no MDB entry will be flooded towards this given port. By default this flag is on. .TP +.BI mcast_router " MULTICAST_ROUTER " +This flag is almost the same as the per-VLAN flag, see below, except its +value can only be set in the range 0-2. The default is +.B 1 +where the bridge figures out automatically where an IGMP/MLD querier, +MRDISC capable device, or PIM router, is located. Setting this flag to +.B 2 +is useful in cases where the multicast router does not indicate its +presence in any meaningful way (e.g. older versions of SMCRoute, or +mrouted), or when there is a need for forwarding both known and unknown +IP multicast to a secondary/backup router. + +.TP .BR "mcast_to_unicast on " or " mcast_to_unicast off " Controls whether a given port will replicate packets using unicast instead of multicast. By default this flag is off. |