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SubjectRe: Interface statistics for Bonding bug in 2.4
The answer is in the source; in v2.4, stats are only collected on sent
packets; in v2.2, stats are not collected at all; they are simply summed
from the interfaces stats.

It's not a bug; it's simply a design decision.

Chris Chabot wrote:
>
> I recently upgraded my main server to a 2.4 kernel (2.4.1pre9). This
> machine uses 2 3Com 3C905B networkcards, bonded together (using the
> bonding module).
>
> When doing a 'ifconfig' the bond0 device shows 0 RX packets, and a valid
> # of TX packets. However looking at eth0 / eth1 (the 2 network cards)
> they have the just about the same amount of RX packets, so recieving
> does apear to be balanced over the two interfaces.
>
> When running this machine on 2.2.16 the interface it does show the
> interface statistics accuratly. I also tested this on a clean 2.4.0
> kernel, and it had the same bug.
>
> The ifconfig output (note the 0 packets in bond0's RX)
>
> bond0 Link encap:Ethernet HWaddr 00:50:DA:B8:33:0F
> inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
>
> UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:3655 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:0
>
> eth0 Link encap:Ethernet HWaddr 00:50:DA:B8:33:0F
> inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
>
> UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
> RX packets:1992 errors:0 dropped:0 overruns:0 frame:0
> TX packets:1828 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> Interrupt:11 Base address:0x9800
>
> eth1 Link encap:Ethernet HWaddr 00:50:DA:B8:33:0F
> inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
>
> UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
> RX packets:1878 errors:0 dropped:0 overruns:0 frame:0
> TX packets:1827 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> Interrupt:10 Base address:0x9400
>
> Please CC me in any replies since im not subscribed to the kernel list.
>
> -- Chris

--
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Thomas Davis | PDSF Project Leader
tadavis@lbl.gov |
(510) 486-4524 | "Only a petabyte of data this year?"
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