>>> On 1/23/2009 at 1:58 PM, Alan Altmark <[email protected]> wrote:
-snip-
> A mystery indeed. As Pieter suggested, seeing the output of QUERY NIC
> DETAILS would be edifying.
s390a13:~ # ifconfig
bond0 Link encap:Ethernet HWaddr 02:00:00:00:00:06
inet addr:10.10.220.13 Bcast:10.10.255.255 Mask:255.255.0.0
inet6 addr: fe80::ff:fe00:6/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:190 errors:0 dropped:0 overruns:0 frame:0
TX packets:187 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:28619 (27.9 Kb) TX bytes:18672 (18.2 Kb)
eth1 Link encap:Ethernet HWaddr 02:00:00:00:00:06
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:188 errors:0 dropped:0 overruns:0 frame:0
TX packets:94 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:28478 (27.8 Kb) TX bytes:10282 (10.0 Kb)
eth2 Link encap:Ethernet HWaddr 02:00:00:00:00:06
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:2 errors:0 dropped:0 overruns:0 frame:0
TX packets:93 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:141 (141.0 b) TX bytes:8390 (8.1 Kb)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:70 errors:0 dropped:0 overruns:0 frame:0
TX packets:70 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5432 (5.3 Kb) TX bytes:5432 (5.3 Kb)
s390a13:~ # modprobe vmcp
s390a13:~ # vmcp q nic details
Adapter 0800 Type: QDIO Name: UNASSIGNED Devices: 3
Port 0 MAC: 02-00-00-00-00-06 VSWITCH: SYSTEM VSW1
RX Packets: 20565 Discarded: 281 Errors: 0
TX Packets: 9312 Discarded: 0 Errors: 0
RX Bytes: 18777364 TX Bytes: 3259316
Connection Name: HALLOLE State: Session Established
Device: 0800 Unit: 000 Role: CTL-READ
Device: 0801 Unit: 001 Role: CTL-WRITE
Device: 0802 Unit: 002 Role: DATA
Options: Ethernet Broadcast
Unicast MAC Addresses:
02-00-00-00-00-06
Multicast MAC Addresses:
01-00-5E-00-00-01 IP: 224.0.0.1
01-00-5E-00-01-16 IP: 224.0.1.22
01-00-5E-7F-FF-FD IP: 224.127.255.253
33-33-00-00-00-01 IP: FF02::1
33-33-FF-00-00-06 IP: FF02::FF00:6
Adapter 0900 Type: QDIO Name: UNASSIGNED Devices: 3
Port 0 MAC: 02-00-00-00-00-0C VSWITCH: SYSTEM VSW1
RX Packets: 6 Discarded: 7 Errors: 0
TX Packets: 246 Discarded: 0 Errors: 0
RX Bytes: 472 TX Bytes: 33372
Connection Name: HALLOLE State: Session Established
Device: 0900 Unit: 000 Role: CTL-READ
Device: 0901 Unit: 001 Role: CTL-WRITE
Device: 0902 Unit: 002 Role: DATA
Options: Ethernet
Unicast MAC Addresses:
02-00-00-00-00-06 IP: 10.10.220.13
Multicast MAC Addresses:
01-00-5E-00-00-01 IP: 224.0.0.1
01-00-5E-00-01-16 IP: 224.0.1.22
01-00-5E-7F-FF-FD IP: 224.127.255.253
33-33-00-00-00-01 IP: FF02::1
33-33-FF-00-00-06 IP: FF02::FF00:6
As you can see the "Port 0 MAC" values are different, but the "Unicast MAC"
addresses are the same. But, only the 900 device has an IP address assigned to
it. After sending a 14MB file from this guest, the statistics for the two
interfaces show this:
eth1 Link encap:Ethernet HWaddr 02:00:00:00:00:06
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:7543 errors:0 dropped:0 overruns:0 frame:0
TX packets:6087 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:648827 (633.6 Kb) TX bytes:7779899 (7.4 Mb)
eth2 Link encap:Ethernet HWaddr 02:00:00:00:00:06
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1
RX packets:17 errors:0 dropped:0 overruns:0 frame:0
TX packets:6087 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2414 (2.3 Kb) TX bytes:7763120 (7.4 Mb)
As I said, the number of bytes (and in this case packets) are spread pretty
evenly. The stats from the VSWITCH perspective are now:
Adapter 0800 Type: QDIO Name: UNASSIGNED Devices: 3
Port 0 MAC: 02-00-00-00-00-06 VSWITCH: SYSTEM VSW1
RX Packets: 27573 Discarded: 281 Errors: 0
TX Packets: 15178 Discarded: 0 Errors: 0
RX Bytes: 19403387 TX Bytes: 11014068
Adapter 0900 Type: QDIO Name: UNASSIGNED Devices: 3
Port 0 MAC: 02-00-00-00-00-0C VSWITCH: SYSTEM VSW1
RX Packets: 20 Discarded: 7 Errors: 0
TX Packets: 6107 Discarded: 0 Errors: 0
RX Bytes: 2808 TX Bytes: 7765331
If you subtract the "starting values" of bytes transmitted from these, then
those are also spread pretty evenly. Further statistical analysis is left as
an exercise for the reader (or perhaps the developer). :)
Mark Post
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