When we receive a PIM Hello message on a port we can consider that it
has a multicast router attached, thus it is correct to add it to the
router list. The only catch is it shouldn't be considered for a querier.
Using Daniel's description:
leaf-11 leaf-12 leaf-13
\ | /
bridge-1
/ \
host-11 host-12
- all ports in bridge-1 are in a single vlan aware bridge
- leaf-11 is the IGMP querier
- leaf-13 is the PIM DR
- host-11 TXes packets to 226.10.10.10
- bridge-1 only forwards the 226.10.10.10 traffic out the port to
leaf-11, it should also forward this traffic out the port to leaf-13
Suggested-by: Daniel Walton <dwalton@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
91b02d3d13