[BRIDGE]A basic question: what's the relationship of the Rx/Tx
packets count between the bridge and its enslaved NIC.
shemminger at osdl.org
Wed Aug 17 09:21:32 PDT 2005
On Tue, 16 Aug 2005 11:40:40 +0800
Steven Zhang <zhangseven at gmail.com> wrote:
> I have a bridge br0, it enslaves two NICs: eth0 and eth1.
> By using "cat /proc/net/dev ", i can see the Rx/Tx packets and bytes
> through each interface. just like this:
> I wonder the meaning of the value of the br0, it's Rx/Tx packets is
> less than both eth0 and eth1.
> what's the relationship of the values between bridge and it's enslaved NIC?
The pseudo-device br0 is used for locally generated traffic
There will be several possible flows through a bridge:
Traffic going from
eth0 to eth1 will increase eth0:Rx and eth1:Tx
eth1 to eth0 eth1:Rx eth0:Tx
Locally transmits to eth0 br0:Tx and eth0:Tx
Locally received via eth0 br0:Rx and eth0:Rx
Also, packets generated locally with unknown destination
will be flooded to both eth0 and eth1.
You get the idea
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