Experimental Physics and Industrial Control System
Hi,
What follows is probably not a direct EPICS issue, but maybe someone has
seen this before or can help me make sense of the ifShow report below.
The system is an mv167 / 712 transition module (10baseT) / vxworks 5.2b,
an average size EPICS database (500 records) under 3.12.
ei (unit number 0):
Flags: (0x8063) UP BROADCAST MULTICAST ARP RUNNING
Type: ETHERNET_CSMACD
Internet address: 10.2.2.121
Broadcast address: 10.2.2.255
Netmask 0xff000000 Subnetmask 0xffffff00
Ethernet address is 08:00:3e:25:53:72
Metric is 0
Maximum Transfer Unit size is 1500
0 octets received
0 octets sent
2534236 packets received
12661 packets sent
2534236 unicast packets received
4294967290 unicast packets sent
0 non-unicast packets received
12667 non-unicast packets sent
0 input discards
0 input unknown protocols
24186 input errors
6 output errors
0 collisions; 0 dropped
First I was reasonably impressed with `4294967290 unicast packets sent`
(system had been up for 20h), but looking closely, I read this as a
negative number of packets. Not being too familiar with the concept, I
thought only the particle physics community would come up with an
answer.
4294967290 apparently being (unsigned)-6, did I roll over my counters,
or is it just a secondary artifact and I should focus on the errors
reported in the first place?
Any hindsight on what might be causing this (or any good network
reference to consult) would be greatly appreciated. As expected, the
'singularity' punctually happened, and went away.
cheers,
Matthieu
--
Matthieu Bec Gemini Observatory
Tel: +1 808 9742557 670 N. A'ohoku Place
Fax: +1 808 9359235 Hilo, Hawaii 96720, USA
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