* IGMP snooping problem
@ 2012-09-25 2:59 Lin Ming
0 siblings, 0 replies; only message in thread
From: Lin Ming @ 2012-09-25 2:59 UTC (permalink / raw)
To: Herbert Xu; +Cc: networking
Hi,
I'm testing IGMP snooping on a router which has 4 LAN ports.
# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.00037fbef050 yes eth0
eth1
eth2
eth3
ath0
ath1
ath2
ath3
ath0, 1, 2, 3 are WIFI.
IGMP snooping works well with this configuration.
The router supports a "switch mode", namely the 4 LAN ports connected
to a on-board switch.
In this mode, there is only a eth0, no eth1,2,3.
One benefit of this mode is that the traffic between LAN ports don't
need to go to CPU.
The LAN ports traffic will be handled by hardware switch directly.
# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.00037fbef050 yes eth0
ath0
ath1
ath2
ath3
In this mode, the IGMP snooping among the 4 LAN ports won't work.
Any idea how to resolve this problem?
Thanks,
Lin Ming
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